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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-30 09:22:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-30 09:22:00 -0700
commit034dd340b08be1f2f0477ad16131d609f9dbd53c (patch)
tree2536f4b2d7893ccd916b5abdf3c454ad6edc03c2 /include/crypto
downloadlinux-stable-034dd340b08be1f2f0477ad16131d609f9dbd53c.tar.gz
linux-stable-034dd340b08be1f2f0477ad16131d609f9dbd53c.zip
Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted
Pull tracing fixes from Steven Rostedt: - Fix error output of boot instance creation failure Currently if a boot instance creation fails, instead of printing out the name of the instance that failed, it prints "(null)". That is because it prints "cur_str" that had already been processed by strsep(). Print the saved name instead. While at it, print the error code of the failure. - Fix use-after-free for same named historgrams Histograms can be named so that they can be used in multiple events. But if the named histogram has a variable attached, the second event that uses the named histogram which duplicates it and needs to free the original after duplication leaves the old variable in place and still visible. If another histogram uses than variable, it will use the stale one which will try to reference the freed duplicate histogram and crash the kernel. Free the duplicate variables along with the duplicated histogram data. - Check return value of kthread_run() in event self test The events self tests uses a kthread for testing but does not check if it succeeded in creating a kthread. If the kthread creation were to fail, the code will still try to call kthread_stop() on the error returned. - Fix race between reading trace_pipe and updating subbuffer size If a user is reading the trace_pipe file at the same time they update the ring buffer sub-buffer size, can cause the trace_pipe read to read stale data. Add trace_access_lock() around updating the ring buffer sub-buffer size. - Fix eventfs_inode on failure path in creation of the events directory In the creation of the "events" directory, if after allocating the eventfs_inode a failure is detected, it calls cleanup_ei() which calls free_ei(). The free_ei() will test if eventfs_inode being freed has no children. It is a bug if it does. But on the failure case of the creation of the "events" directory, the children lists have not yet been initialized and the free will trigger a warning because list_empty() on an uninitialized list returns false. Move the initialization into init_ei() where it makes more sense and makes sure that a created eventfs_inode has its lists initialized upon creation. - Check return value of kthread_run() in ftrace direct sample code The sample code that shows how to use the ftrace direct calls does not test the return of kthread_run() to see if it succeeds. Return a failure if the kthread_run() doesn't succeed. - Clear user events state on fork in case of alloc failure On fork, the child gets a pointer to the parent's user events state. It makes a copy of it then updates the child's pointer to it. But if the allocation fails, the duplication function leaves the child with a pointer to its parent's descriptor. When the child cleans up its data, it will free the parent's descriptor while the parent is still using it. In the duplication function, set the child's user_event_mm to NULL before testing if the allocation succeeded, and when it exits it will not free the parent's descriptor. - Fix retry exhaustion in simple ring buffer reader swap simple_ring_buffer_swap_reader_page() starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement leaves retry at zero, while a failed replacement leaves it at -1. But the check for success expects the retry value to be non-zero and exits with an error on zero. This is the opposite result. Fix it. - Fail nicely when the remote swap_reader_page() returns an error Currently, if the swap_reader_page() of a remote buffer fails, it triggers a WARN_ON_ONCE() and continues normally. Instead, have it exit with an error and a pr_warn() print instead of a full WARNING. * tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Stop remote reader update when page swap fails tracing: Fix retry exhaustion in simple ring buffer reader swap tracing/user_events: Clear copied tracing state before fork duplication samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify eventfs: Initialize ei->children and ei->list in init_ei() tracing: Fix use-after-free in trace_pipe read on sub-buffer order change tracing: Fix crash passing ERR_PTR to kthread_stop() tracing: Fix use-after-free with same-name named triggers tracing: Fix logged instance name on creation failure
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/acompress.h558
-rw-r--r--include/crypto/aead.h630
-rw-r--r--include/crypto/aes-cbc-macs.h188
-rw-r--r--include/crypto/aes-cbc.h77
-rw-r--r--include/crypto/aes-ccm.h266
-rw-r--r--include/crypto/aes-ctr.h65
-rw-r--r--include/crypto/aes-ecb.h49
-rw-r--r--include/crypto/aes-gcm.h260
-rw-r--r--include/crypto/aes-xts.h94
-rw-r--r--include/crypto/aes.h401
-rw-r--r--include/crypto/akcipher.h378
-rw-r--r--include/crypto/algapi.h288
-rw-r--r--include/crypto/arc4.h23
-rw-r--r--include/crypto/aria.h458
-rw-r--r--include/crypto/authenc.h34
-rw-r--r--include/crypto/b128ops.h72
-rw-r--r--include/crypto/blake2b.h156
-rw-r--r--include/crypto/blake2s.h160
-rw-r--r--include/crypto/blowfish.h24
-rw-r--r--include/crypto/cast5.h24
-rw-r--r--include/crypto/cast6.h24
-rw-r--r--include/crypto/cast_common.h10
-rw-r--r--include/crypto/chacha.h102
-rw-r--r--include/crypto/chacha20poly1305.h49
-rw-r--r--include/crypto/cryptd.h39
-rw-r--r--include/crypto/ctr.h15
-rw-r--r--include/crypto/curve25519.h43
-rw-r--r--include/crypto/des.h57
-rw-r--r--include/crypto/dh.h98
-rw-r--r--include/crypto/ecc_curve.h62
-rw-r--r--include/crypto/ecdh.h83
-rw-r--r--include/crypto/engine.h106
-rw-r--r--include/crypto/gcm.h64
-rw-r--r--include/crypto/gf128hash.h276
-rw-r--r--include/crypto/gf128mul.h237
-rw-r--r--include/crypto/ghash.h12
-rw-r--r--include/crypto/hash.h1047
-rw-r--r--include/crypto/hash_info.h41
-rw-r--r--include/crypto/hmac.h8
-rw-r--r--include/crypto/if_alg.h274
-rw-r--r--include/crypto/internal/acompress.h246
-rw-r--r--include/crypto/internal/aead.h168
-rw-r--r--include/crypto/internal/akcipher.h155
-rw-r--r--include/crypto/internal/cipher.h218
-rw-r--r--include/crypto/internal/des.h127
-rw-r--r--include/crypto/internal/ecc.h312
-rw-r--r--include/crypto/internal/engine.h58
-rw-r--r--include/crypto/internal/geniv.h24
-rw-r--r--include/crypto/internal/hash.h405
-rw-r--r--include/crypto/internal/kdf_selftest.h71
-rw-r--r--include/crypto/internal/kpp.h245
-rw-r--r--include/crypto/internal/poly1305.h56
-rw-r--r--include/crypto/internal/rng.h40
-rw-r--r--include/crypto/internal/rsa.h86
-rw-r--r--include/crypto/internal/scompress.h109
-rw-r--r--include/crypto/internal/sig.h97
-rw-r--r--include/crypto/internal/simd.h40
-rw-r--r--include/crypto/internal/skcipher.h315
-rw-r--r--include/crypto/kdf_sp800108.h61
-rw-r--r--include/crypto/kpp.h350
-rw-r--r--include/crypto/krb5.h168
-rw-r--r--include/crypto/md5.h210
-rw-r--r--include/crypto/mldsa.h62
-rw-r--r--include/crypto/nh.h52
-rw-r--r--include/crypto/null.h12
-rw-r--r--include/crypto/padlock.h24
-rw-r--r--include/crypto/pcrypt.h39
-rw-r--r--include/crypto/pkcs7.h47
-rw-r--r--include/crypto/poly1305.h67
-rw-r--r--include/crypto/public_key.h124
-rw-r--r--include/crypto/rng.h219
-rw-r--r--include/crypto/scatterwalk.h256
-rw-r--r--include/crypto/serpent.h28
-rw-r--r--include/crypto/sha1.h209
-rw-r--r--include/crypto/sha2.h913
-rw-r--r--include/crypto/sha3.h346
-rw-r--r--include/crypto/sig.h265
-rw-r--r--include/crypto/skcipher.h941
-rw-r--r--include/crypto/sm3.h87
-rw-r--r--include/crypto/sm4.h48
-rw-r--r--include/crypto/streebog.h32
-rw-r--r--include/crypto/twofish.h25
-rw-r--r--include/crypto/utils.h73
-rw-r--r--include/crypto/xts.h50
84 files changed, 14332 insertions, 0 deletions
diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
new file mode 100644
index 000000000..5d5358dfa
--- /dev/null
+++ b/include/crypto/acompress.h
@@ -0,0 +1,558 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Asynchronous Compression operations
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Weigang Li <weigang.li@intel.com>
+ * Giovanni Cabiddu <giovanni.cabiddu@intel.com>
+ */
+#ifndef _CRYPTO_ACOMP_H
+#define _CRYPTO_ACOMP_H
+
+#include <linux/atomic.h>
+#include <linux/args.h>
+#include <linux/compiler_types.h>
+#include <linux/container_of.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+#include <linux/spinlock_types.h>
+#include <linux/types.h>
+
+/* Set this bit if source is virtual address instead of SG list. */
+#define CRYPTO_ACOMP_REQ_SRC_VIRT 0x00000002
+
+/* Set this bit for if virtual address source cannot be used for DMA. */
+#define CRYPTO_ACOMP_REQ_SRC_NONDMA 0x00000004
+
+/* Set this bit if destination is virtual address instead of SG list. */
+#define CRYPTO_ACOMP_REQ_DST_VIRT 0x00000008
+
+/* Set this bit for if virtual address destination cannot be used for DMA. */
+#define CRYPTO_ACOMP_REQ_DST_NONDMA 0x00000010
+
+/* Private flags that should not be touched by the user. */
+#define CRYPTO_ACOMP_REQ_PRIVATE \
+ (CRYPTO_ACOMP_REQ_SRC_VIRT | CRYPTO_ACOMP_REQ_SRC_NONDMA | \
+ CRYPTO_ACOMP_REQ_DST_VIRT | CRYPTO_ACOMP_REQ_DST_NONDMA)
+
+#define CRYPTO_ACOMP_DST_MAX 131072
+
+#define MAX_SYNC_COMP_REQSIZE 0
+
+#define ACOMP_REQUEST_ON_STACK(name, tfm) \
+ char __##name##_req[sizeof(struct acomp_req) + \
+ MAX_SYNC_COMP_REQSIZE] CRYPTO_MINALIGN_ATTR; \
+ struct acomp_req *name = acomp_request_on_stack_init( \
+ __##name##_req, (tfm))
+
+#define ACOMP_REQUEST_CLONE(name, gfp) \
+ acomp_request_clone(name, sizeof(__##name##_req), gfp)
+
+struct acomp_req;
+struct folio;
+
+struct acomp_req_chain {
+ crypto_completion_t compl;
+ void *data;
+ struct scatterlist ssg;
+ struct scatterlist dsg;
+ union {
+ const u8 *src;
+ struct folio *sfolio;
+ };
+ union {
+ u8 *dst;
+ struct folio *dfolio;
+ };
+ u32 flags;
+};
+
+/**
+ * struct acomp_req - asynchronous (de)compression request
+ *
+ * @base: Common attributes for asynchronous crypto requests
+ * @src: Source scatterlist
+ * @dst: Destination scatterlist
+ * @svirt: Source virtual address
+ * @dvirt: Destination virtual address
+ * @slen: Size of the input buffer
+ * @dlen: Size of the output buffer and number of bytes produced
+ * @chain: Private API code data, do not use
+ * @__ctx: Start of private context data
+ */
+struct acomp_req {
+ struct crypto_async_request base;
+ union {
+ struct scatterlist *src;
+ const u8 *svirt;
+ };
+ union {
+ struct scatterlist *dst;
+ u8 *dvirt;
+ };
+ unsigned int slen;
+ unsigned int dlen;
+
+ struct acomp_req_chain chain;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ * struct crypto_acomp - user-instantiated objects which encapsulate
+ * algorithms and core processing logic
+ *
+ * @compress: Function performs a compress operation
+ * @decompress: Function performs a de-compress operation
+ * @reqsize: Context size for (de)compression requests
+ * @fb: Synchronous fallback tfm
+ * @base: Common crypto API algorithm data structure
+ */
+struct crypto_acomp {
+ int (*compress)(struct acomp_req *req);
+ int (*decompress)(struct acomp_req *req);
+ unsigned int reqsize;
+ struct crypto_tfm base;
+};
+
+#define COMP_ALG_COMMON { \
+ struct crypto_alg base; \
+}
+struct comp_alg_common COMP_ALG_COMMON;
+
+/**
+ * DOC: Asynchronous Compression API
+ *
+ * The Asynchronous Compression API is used with the algorithms of type
+ * CRYPTO_ALG_TYPE_ACOMPRESS (listed as type "acomp" in /proc/crypto)
+ */
+
+/**
+ * crypto_alloc_acomp() -- allocate ACOMPRESS tfm handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * compression algorithm e.g. "deflate"
+ * @type: specifies the type of the algorithm
+ * @mask: specifies the mask for the algorithm
+ *
+ * Allocate a handle for a compression algorithm. The returned struct
+ * crypto_acomp is the handle that is required for any subsequent
+ * API invocation for the compression operations.
+ *
+ * Return: allocated handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
+ u32 mask);
+/**
+ * crypto_alloc_acomp_node() -- allocate ACOMPRESS tfm handle with desired NUMA node
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * compression algorithm e.g. "deflate"
+ * @type: specifies the type of the algorithm
+ * @mask: specifies the mask for the algorithm
+ * @node: specifies the NUMA node the ZIP hardware belongs to
+ *
+ * Allocate a handle for a compression algorithm. Drivers should try to use
+ * (de)compressors on the specified NUMA node.
+ * The returned struct crypto_acomp is the handle that is required for any
+ * subsequent API invocation for the compression operations.
+ *
+ * Return: allocated handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_acomp *crypto_alloc_acomp_node(const char *alg_name, u32 type,
+ u32 mask, int node);
+
+static inline struct crypto_tfm *crypto_acomp_tfm(struct crypto_acomp *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct comp_alg_common *__crypto_comp_alg_common(
+ struct crypto_alg *alg)
+{
+ return container_of(alg, struct comp_alg_common, base);
+}
+
+static inline struct crypto_acomp *__crypto_acomp_tfm(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_acomp, base);
+}
+
+static inline struct comp_alg_common *crypto_comp_alg_common(
+ struct crypto_acomp *tfm)
+{
+ return __crypto_comp_alg_common(crypto_acomp_tfm(tfm)->__crt_alg);
+}
+
+static inline unsigned int crypto_acomp_reqsize(struct crypto_acomp *tfm)
+{
+ return tfm->reqsize;
+}
+
+static inline void acomp_request_set_tfm(struct acomp_req *req,
+ struct crypto_acomp *tfm)
+{
+ crypto_request_set_tfm(&req->base, crypto_acomp_tfm(tfm));
+}
+
+static inline bool acomp_is_async(struct crypto_acomp *tfm)
+{
+ return crypto_comp_alg_common(tfm)->base.cra_flags &
+ CRYPTO_ALG_ASYNC;
+}
+
+static inline struct crypto_acomp *crypto_acomp_reqtfm(struct acomp_req *req)
+{
+ return __crypto_acomp_tfm(req->base.tfm);
+}
+
+/**
+ * crypto_free_acomp() -- free ACOMPRESS tfm handle
+ *
+ * @tfm: ACOMPRESS tfm handle allocated with crypto_alloc_acomp()
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_acomp(struct crypto_acomp *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_acomp_tfm(tfm));
+}
+
+static inline int crypto_has_acomp(const char *alg_name, u32 type, u32 mask)
+{
+ type &= ~CRYPTO_ALG_TYPE_MASK;
+ type |= CRYPTO_ALG_TYPE_ACOMPRESS;
+ mask |= CRYPTO_ALG_TYPE_ACOMPRESS_MASK;
+
+ return crypto_has_alg(alg_name, type, mask);
+}
+
+static inline const char *crypto_acomp_alg_name(struct crypto_acomp *tfm)
+{
+ return crypto_tfm_alg_name(crypto_acomp_tfm(tfm));
+}
+
+static inline const char *crypto_acomp_driver_name(struct crypto_acomp *tfm)
+{
+ return crypto_tfm_alg_driver_name(crypto_acomp_tfm(tfm));
+}
+
+/**
+ * acomp_request_alloc_extra() -- allocates asynchronous (de)compression request
+ *
+ * @tfm: ACOMPRESS tfm handle allocated with crypto_alloc_acomp()
+ * @extra: amount of extra memory
+ * @gfp: gfp to pass to kzalloc (defaults to GFP_KERNEL)
+ *
+ * Return: allocated handle in case of success or NULL in case of an error
+ */
+static inline struct acomp_req *acomp_request_alloc_extra_noprof(
+ struct crypto_acomp *tfm, size_t extra, gfp_t gfp)
+{
+ struct acomp_req *req;
+ size_t len;
+
+ len = ALIGN(sizeof(*req) + crypto_acomp_reqsize(tfm), CRYPTO_MINALIGN);
+ if (check_add_overflow(len, extra, &len))
+ return NULL;
+
+ req = kzalloc_noprof(len, gfp);
+ if (likely(req))
+ acomp_request_set_tfm(req, tfm);
+ return req;
+}
+#define acomp_request_alloc_noprof(tfm, ...) \
+ CONCATENATE(acomp_request_alloc_noprof_, COUNT_ARGS(__VA_ARGS__))( \
+ tfm, ##__VA_ARGS__)
+#define acomp_request_alloc_noprof_0(tfm) \
+ acomp_request_alloc_noprof_1(tfm, GFP_KERNEL)
+#define acomp_request_alloc_noprof_1(tfm, gfp) \
+ acomp_request_alloc_extra_noprof(tfm, 0, gfp)
+#define acomp_request_alloc(...) alloc_hooks(acomp_request_alloc_noprof(__VA_ARGS__))
+
+/**
+ * acomp_request_alloc_extra() -- allocate acomp request with extra memory
+ *
+ * @tfm: ACOMPRESS tfm handle allocated with crypto_alloc_acomp()
+ * @extra: amount of extra memory
+ * @gfp: gfp to pass to kzalloc
+ *
+ * Return: allocated handle in case of success or NULL in case of an error
+ */
+#define acomp_request_alloc_extra(...) alloc_hooks(acomp_request_alloc_extra_noprof(__VA_ARGS__))
+
+static inline void *acomp_request_extra(struct acomp_req *req)
+{
+ struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
+ size_t len;
+
+ len = ALIGN(sizeof(*req) + crypto_acomp_reqsize(tfm), CRYPTO_MINALIGN);
+ return (void *)((char *)req + len);
+}
+
+static inline bool acomp_req_on_stack(struct acomp_req *req)
+{
+ return crypto_req_on_stack(&req->base);
+}
+
+/**
+ * acomp_request_free() -- zeroize and free asynchronous (de)compression
+ * request as well as the output buffer if allocated
+ * inside the algorithm
+ *
+ * @req: request to free
+ */
+static inline void acomp_request_free(struct acomp_req *req)
+{
+ if (!req || acomp_req_on_stack(req))
+ return;
+ kfree_sensitive(req);
+}
+
+/**
+ * acomp_request_set_callback() -- Sets an asynchronous callback
+ *
+ * Callback will be called when an asynchronous operation on a given
+ * request is finished.
+ *
+ * @req: request that the callback will be set for
+ * @flgs: specify for instance if the operation may backlog
+ * @cmpl: callback which will be called
+ * @data: private data used by the caller
+ */
+static inline void acomp_request_set_callback(struct acomp_req *req,
+ u32 flgs,
+ crypto_completion_t cmpl,
+ void *data)
+{
+ flgs &= ~CRYPTO_ACOMP_REQ_PRIVATE;
+ flgs |= req->base.flags & CRYPTO_ACOMP_REQ_PRIVATE;
+ crypto_request_set_callback(&req->base, flgs, cmpl, data);
+}
+
+/**
+ * acomp_request_set_params() -- Sets request parameters
+ *
+ * Sets parameters required by an acomp operation
+ *
+ * @req: asynchronous compress request
+ * @src: pointer to input buffer scatterlist
+ * @dst: pointer to output buffer scatterlist. If this is NULL, the
+ * acomp layer will allocate the output memory
+ * @slen: size of the input buffer
+ * @dlen: size of the output buffer. If dst is NULL, this can be used by
+ * the user to specify the maximum amount of memory to allocate
+ */
+static inline void acomp_request_set_params(struct acomp_req *req,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ unsigned int slen,
+ unsigned int dlen)
+{
+ req->src = src;
+ req->dst = dst;
+ req->slen = slen;
+ req->dlen = dlen;
+
+ req->base.flags &= ~(CRYPTO_ACOMP_REQ_SRC_VIRT |
+ CRYPTO_ACOMP_REQ_SRC_NONDMA |
+ CRYPTO_ACOMP_REQ_DST_VIRT |
+ CRYPTO_ACOMP_REQ_DST_NONDMA);
+}
+
+/**
+ * acomp_request_set_src_sg() -- Sets source scatterlist
+ *
+ * Sets source scatterlist required by an acomp operation.
+ *
+ * @req: asynchronous compress request
+ * @src: pointer to input buffer scatterlist
+ * @slen: size of the input buffer
+ */
+static inline void acomp_request_set_src_sg(struct acomp_req *req,
+ struct scatterlist *src,
+ unsigned int slen)
+{
+ req->src = src;
+ req->slen = slen;
+
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_SRC_NONDMA;
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_SRC_VIRT;
+}
+
+/**
+ * acomp_request_set_src_dma() -- Sets DMA source virtual address
+ *
+ * Sets source virtual address required by an acomp operation.
+ * The address must be usable for DMA.
+ *
+ * @req: asynchronous compress request
+ * @src: virtual address pointer to input buffer
+ * @slen: size of the input buffer
+ */
+static inline void acomp_request_set_src_dma(struct acomp_req *req,
+ const u8 *src, unsigned int slen)
+{
+ req->svirt = src;
+ req->slen = slen;
+
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_SRC_NONDMA;
+ req->base.flags |= CRYPTO_ACOMP_REQ_SRC_VIRT;
+}
+
+/**
+ * acomp_request_set_src_nondma() -- Sets non-DMA source virtual address
+ *
+ * Sets source virtual address required by an acomp operation.
+ * The address can not be used for DMA.
+ *
+ * @req: asynchronous compress request
+ * @src: virtual address pointer to input buffer
+ * @slen: size of the input buffer
+ */
+static inline void acomp_request_set_src_nondma(struct acomp_req *req,
+ const u8 *src,
+ unsigned int slen)
+{
+ req->svirt = src;
+ req->slen = slen;
+
+ req->base.flags |= CRYPTO_ACOMP_REQ_SRC_NONDMA;
+ req->base.flags |= CRYPTO_ACOMP_REQ_SRC_VIRT;
+}
+
+/**
+ * acomp_request_set_src_folio() -- Sets source folio
+ *
+ * Sets source folio required by an acomp operation.
+ *
+ * @req: asynchronous compress request
+ * @folio: pointer to input folio
+ * @off: input folio offset
+ * @len: size of the input buffer
+ */
+static inline void acomp_request_set_src_folio(struct acomp_req *req,
+ struct folio *folio, size_t off,
+ unsigned int len)
+{
+ sg_init_table(&req->chain.ssg, 1);
+ sg_set_folio(&req->chain.ssg, folio, len, off);
+ acomp_request_set_src_sg(req, &req->chain.ssg, len);
+}
+
+/**
+ * acomp_request_set_dst_sg() -- Sets destination scatterlist
+ *
+ * Sets destination scatterlist required by an acomp operation.
+ *
+ * @req: asynchronous compress request
+ * @dst: pointer to output buffer scatterlist
+ * @dlen: size of the output buffer
+ */
+static inline void acomp_request_set_dst_sg(struct acomp_req *req,
+ struct scatterlist *dst,
+ unsigned int dlen)
+{
+ req->dst = dst;
+ req->dlen = dlen;
+
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_DST_NONDMA;
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_DST_VIRT;
+}
+
+/**
+ * acomp_request_set_dst_dma() -- Sets DMA destination virtual address
+ *
+ * Sets destination virtual address required by an acomp operation.
+ * The address must be usable for DMA.
+ *
+ * @req: asynchronous compress request
+ * @dst: virtual address pointer to output buffer
+ * @dlen: size of the output buffer
+ */
+static inline void acomp_request_set_dst_dma(struct acomp_req *req,
+ u8 *dst, unsigned int dlen)
+{
+ req->dvirt = dst;
+ req->dlen = dlen;
+
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_DST_NONDMA;
+ req->base.flags |= CRYPTO_ACOMP_REQ_DST_VIRT;
+}
+
+/**
+ * acomp_request_set_dst_nondma() -- Sets non-DMA destination virtual address
+ *
+ * Sets destination virtual address required by an acomp operation.
+ * The address can not be used for DMA.
+ *
+ * @req: asynchronous compress request
+ * @dst: virtual address pointer to output buffer
+ * @dlen: size of the output buffer
+ */
+static inline void acomp_request_set_dst_nondma(struct acomp_req *req,
+ u8 *dst, unsigned int dlen)
+{
+ req->dvirt = dst;
+ req->dlen = dlen;
+
+ req->base.flags |= CRYPTO_ACOMP_REQ_DST_NONDMA;
+ req->base.flags |= CRYPTO_ACOMP_REQ_DST_VIRT;
+}
+
+/**
+ * acomp_request_set_dst_folio() -- Sets destination folio
+ *
+ * Sets destination folio required by an acomp operation.
+ *
+ * @req: asynchronous compress request
+ * @folio: pointer to input folio
+ * @off: input folio offset
+ * @len: size of the input buffer
+ */
+static inline void acomp_request_set_dst_folio(struct acomp_req *req,
+ struct folio *folio, size_t off,
+ unsigned int len)
+{
+ sg_init_table(&req->chain.dsg, 1);
+ sg_set_folio(&req->chain.dsg, folio, len, off);
+ acomp_request_set_dst_sg(req, &req->chain.dsg, len);
+}
+
+/**
+ * crypto_acomp_compress() -- Invoke asynchronous compress operation
+ *
+ * Function invokes the asynchronous compress operation
+ *
+ * @req: asynchronous compress request
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_acomp_compress(struct acomp_req *req);
+
+/**
+ * crypto_acomp_decompress() -- Invoke asynchronous decompress operation
+ *
+ * Function invokes the asynchronous decompress operation
+ *
+ * @req: asynchronous compress request
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_acomp_decompress(struct acomp_req *req);
+
+static inline struct acomp_req *acomp_request_on_stack_init(
+ char *buf, struct crypto_acomp *tfm)
+{
+ struct acomp_req *req = (void *)buf;
+
+ crypto_stack_request_init(&req->base, crypto_acomp_tfm(tfm));
+ return req;
+}
+
+struct acomp_req *acomp_request_clone(struct acomp_req *req,
+ size_t total, gfp_t gfp);
+
+#endif
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
new file mode 100644
index 000000000..8e66a1fa9
--- /dev/null
+++ b/include/crypto/aead.h
@@ -0,0 +1,630 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * AEAD: Authenticated Encryption with Associated Data
+ *
+ * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_AEAD_H
+#define _CRYPTO_AEAD_H
+
+#include <linux/atomic.h>
+#include <linux/container_of.h>
+#include <linux/crypto.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+/**
+ * DOC: Authenticated Encryption With Associated Data (AEAD) Cipher API
+ *
+ * The AEAD cipher API is used with the ciphers of type CRYPTO_ALG_TYPE_AEAD
+ * (listed as type "aead" in /proc/crypto)
+ *
+ * The most prominent examples for this type of encryption is GCM and CCM.
+ * However, the kernel supports other types of AEAD ciphers which are defined
+ * with the following cipher string:
+ *
+ * authenc(keyed message digest, block cipher)
+ *
+ * For example: authenc(hmac(sha256), cbc(aes))
+ *
+ * The example code provided for the symmetric key cipher operation applies
+ * here as well. Naturally all *skcipher* symbols must be exchanged the *aead*
+ * pendants discussed in the following. In addition, for the AEAD operation,
+ * the aead_request_set_ad function must be used to set the pointer to the
+ * associated data memory location before performing the encryption or
+ * decryption operation. Another deviation from the asynchronous block cipher
+ * operation is that the caller should explicitly check for -EBADMSG of the
+ * crypto_aead_decrypt. That error indicates an authentication error, i.e.
+ * a breach in the integrity of the message. In essence, that -EBADMSG error
+ * code is the key bonus an AEAD cipher has over "standard" block chaining
+ * modes.
+ *
+ * Memory Structure:
+ *
+ * The source scatterlist must contain the concatenation of
+ * associated data || plaintext or ciphertext.
+ *
+ * The destination scatterlist has the same layout, except that the plaintext
+ * (resp. ciphertext) will grow (resp. shrink) by the authentication tag size
+ * during encryption (resp. decryption). The authentication tag is generated
+ * during the encryption operation and appended to the ciphertext. During
+ * decryption, the authentication tag is consumed along with the ciphertext and
+ * used to verify the integrity of the plaintext and the associated data.
+ *
+ * In-place encryption/decryption is enabled by using the same scatterlist
+ * pointer for both the source and destination.
+ *
+ * Even in the out-of-place case, space must be reserved in the destination for
+ * the associated data, even though it won't be written to. This makes the
+ * in-place and out-of-place cases more consistent. It is permissible for the
+ * "destination" associated data to alias the "source" associated data.
+ *
+ * As with the other scatterlist crypto APIs, zero-length scatterlist elements
+ * are not allowed in the used part of the scatterlist. Thus, if there is no
+ * associated data, the first element must point to the plaintext/ciphertext.
+ *
+ * To meet the needs of IPsec, a special quirk applies to rfc4106, rfc4309,
+ * rfc4543, and rfc7539esp ciphers. For these ciphers, the final 'ivsize' bytes
+ * of the associated data buffer must contain a second copy of the IV. This is
+ * in addition to the copy passed to aead_request_set_crypt(). These two IV
+ * copies must not differ; different implementations of the same algorithm may
+ * behave differently in that case. Note that the algorithm might not actually
+ * treat the IV as associated data; nevertheless the length passed to
+ * aead_request_set_ad() must include it.
+ */
+
+struct crypto_aead;
+struct scatterlist;
+
+/**
+ * struct aead_request - AEAD request
+ * @base: Common attributes for async crypto requests
+ * @assoclen: Length in bytes of associated data for authentication
+ * @cryptlen: Length of data to be encrypted or decrypted
+ * @iv: Initialisation vector
+ * @src: Source data
+ * @dst: Destination data
+ * @__ctx: Start of private context data
+ */
+struct aead_request {
+ struct crypto_async_request base;
+
+ unsigned int assoclen;
+ unsigned int cryptlen;
+
+ u8 *iv;
+
+ struct scatterlist *src;
+ struct scatterlist *dst;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ * struct aead_alg - AEAD cipher definition
+ * @maxauthsize: Set the maximum authentication tag size supported by the
+ * transformation. A transformation may support smaller tag sizes.
+ * As the authentication tag is a message digest to ensure the
+ * integrity of the encrypted data, a consumer typically wants the
+ * largest authentication tag possible as defined by this
+ * variable.
+ * @setauthsize: Set authentication size for the AEAD transformation. This
+ * function is used to specify the consumer requested size of the
+ * authentication tag to be either generated by the transformation
+ * during encryption or the size of the authentication tag to be
+ * supplied during the decryption operation. This function is also
+ * responsible for checking the authentication tag size for
+ * validity.
+ * @setkey: see struct skcipher_alg
+ * @encrypt: see struct skcipher_alg
+ * @decrypt: see struct skcipher_alg
+ * @ivsize: see struct skcipher_alg
+ * @chunksize: see struct skcipher_alg
+ * @init: Initialize the cryptographic transformation object. This function
+ * is used to initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation time, right
+ * after the transformation context was allocated. In case the
+ * cryptographic hardware has some special requirements which need to
+ * be handled by software, this function shall check for the precise
+ * requirement of the transformation and put any software fallbacks
+ * in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
+ * @base: Definition of a generic crypto cipher algorithm.
+ *
+ * All fields except @ivsize is mandatory and must be filled.
+ */
+struct aead_alg {
+ int (*setkey)(struct crypto_aead *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
+ int (*encrypt)(struct aead_request *req);
+ int (*decrypt)(struct aead_request *req);
+ int (*init)(struct crypto_aead *tfm);
+ void (*exit)(struct crypto_aead *tfm);
+
+ unsigned int ivsize;
+ unsigned int maxauthsize;
+ unsigned int chunksize;
+
+ struct crypto_alg base;
+};
+
+struct crypto_aead {
+ unsigned int authsize;
+ unsigned int reqsize;
+
+ struct crypto_tfm base;
+};
+
+struct crypto_sync_aead {
+ struct crypto_aead base;
+};
+
+#define MAX_SYNC_AEAD_REQSIZE 384
+
+#define SYNC_AEAD_REQUEST_ON_STACK(name, _tfm) \
+ char __##name##_desc[sizeof(struct aead_request) + \
+ MAX_SYNC_AEAD_REQSIZE \
+ ] CRYPTO_MINALIGN_ATTR; \
+ struct aead_request *name = \
+ (((struct aead_request *)__##name##_desc)->base.tfm = \
+ crypto_sync_aead_tfm((_tfm)), \
+ (void *)__##name##_desc)
+
+static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_aead, base);
+}
+
+/**
+ * crypto_alloc_aead() - allocate AEAD cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * AEAD cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an AEAD. The returned struct
+ * crypto_aead is the cipher handle that is required for any subsequent
+ * API invocation for that AEAD.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask);
+
+struct crypto_sync_aead *crypto_alloc_sync_aead(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct crypto_tfm *crypto_sync_aead_tfm(struct crypto_sync_aead *tfm)
+{
+ return crypto_aead_tfm(&tfm->base);
+}
+
+/**
+ * crypto_free_aead() - zeroize and free aead handle
+ * @tfm: cipher handle to be freed
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_aead(struct crypto_aead *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_aead_tfm(tfm));
+}
+
+static inline void crypto_free_sync_aead(struct crypto_sync_aead *tfm)
+{
+ crypto_free_aead(&tfm->base);
+}
+
+/**
+ * crypto_has_aead() - Search for the availability of an aead.
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * aead
+ * @type: specifies the type of the aead
+ * @mask: specifies the mask for the aead
+ *
+ * Return: true when the aead is known to the kernel crypto API; false
+ * otherwise
+ */
+int crypto_has_aead(const char *alg_name, u32 type, u32 mask);
+
+static inline const char *crypto_aead_driver_name(struct crypto_aead *tfm)
+{
+ return crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));
+}
+
+static inline struct aead_alg *crypto_aead_alg(struct crypto_aead *tfm)
+{
+ return container_of(crypto_aead_tfm(tfm)->__crt_alg,
+ struct aead_alg, base);
+}
+
+static inline unsigned int crypto_aead_alg_ivsize(struct aead_alg *alg)
+{
+ return alg->ivsize;
+}
+
+/**
+ * crypto_aead_ivsize() - obtain IV size
+ * @tfm: cipher handle
+ *
+ * The size of the IV for the aead referenced by the cipher handle is
+ * returned. This IV size may be zero if the cipher does not need an IV.
+ *
+ * Return: IV size in bytes
+ */
+static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm)
+{
+ return crypto_aead_alg_ivsize(crypto_aead_alg(tfm));
+}
+
+static inline unsigned int crypto_sync_aead_ivsize(struct crypto_sync_aead *tfm)
+{
+ return crypto_aead_ivsize(&tfm->base);
+}
+
+/**
+ * crypto_aead_authsize() - obtain maximum authentication data size
+ * @tfm: cipher handle
+ *
+ * The maximum size of the authentication data for the AEAD cipher referenced
+ * by the AEAD cipher handle is returned. The authentication data size may be
+ * zero if the cipher implements a hard-coded maximum.
+ *
+ * The authentication data may also be known as "tag value".
+ *
+ * Return: authentication data size / tag size in bytes
+ */
+static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm)
+{
+ return tfm->authsize;
+}
+
+static inline unsigned int crypto_sync_aead_authsize(struct crypto_sync_aead *tfm)
+{
+ return crypto_aead_authsize(&tfm->base);
+}
+
+static inline unsigned int crypto_aead_alg_maxauthsize(struct aead_alg *alg)
+{
+ return alg->maxauthsize;
+}
+
+static inline unsigned int crypto_aead_maxauthsize(struct crypto_aead *aead)
+{
+ return crypto_aead_alg_maxauthsize(crypto_aead_alg(aead));
+}
+
+static inline unsigned int crypto_sync_aead_maxauthsize(struct crypto_sync_aead *tfm)
+{
+ return crypto_aead_maxauthsize(&tfm->base);
+}
+
+/**
+ * crypto_aead_blocksize() - obtain block size of cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the AEAD referenced with the cipher handle is returned.
+ * The caller may use that information to allocate appropriate memory for the
+ * data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm));
+}
+
+static inline unsigned int crypto_sync_aead_blocksize(struct crypto_sync_aead *tfm)
+{
+ return crypto_aead_blocksize(&tfm->base);
+}
+
+static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm));
+}
+
+static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm)
+{
+ return crypto_tfm_get_flags(crypto_aead_tfm(tfm));
+}
+
+static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags)
+{
+ crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags);
+}
+
+static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags);
+}
+
+static inline u32 crypto_sync_aead_get_flags(struct crypto_sync_aead *tfm)
+{
+ return crypto_aead_get_flags(&tfm->base);
+}
+
+static inline void crypto_sync_aead_set_flags(struct crypto_sync_aead *tfm, u32 flags)
+{
+ crypto_aead_set_flags(&tfm->base, flags);
+}
+
+static inline void crypto_sync_aead_clear_flags(struct crypto_sync_aead *tfm, u32 flags)
+{
+ crypto_aead_clear_flags(&tfm->base, flags);
+}
+
+/**
+ * crypto_aead_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the AEAD referenced by the cipher
+ * handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_aead_setkey(struct crypto_aead *tfm,
+ const u8 *key, unsigned int keylen);
+
+static inline int crypto_sync_aead_setkey(struct crypto_sync_aead *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return crypto_aead_setkey(&tfm->base, key, keylen);
+}
+
+/**
+ * crypto_aead_setauthsize() - set authentication data size
+ * @tfm: cipher handle
+ * @authsize: size of the authentication data / tag in bytes
+ *
+ * Set the authentication data size / tag size. AEAD requires an authentication
+ * tag (or MAC) in addition to the associated data.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
+
+static inline int crypto_sync_aead_setauthsize(struct crypto_sync_aead *tfm,
+ unsigned int authsize)
+{
+ return crypto_aead_setauthsize(&tfm->base, authsize);
+}
+
+static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
+{
+ return __crypto_aead_cast(req->base.tfm);
+}
+
+static inline struct crypto_sync_aead *crypto_sync_aead_reqtfm(struct aead_request *req)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+
+ return container_of(tfm, struct crypto_sync_aead, base);
+}
+
+/**
+ * crypto_aead_encrypt() - encrypt plaintext
+ * @req: reference to the aead_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Encrypt plaintext data using the aead_request handle. That data structure
+ * and how it is filled with data is discussed with the aead_request_*
+ * functions.
+ *
+ * IMPORTANT NOTE The encryption operation creates the authentication data /
+ * tag. That data is concatenated with the created ciphertext.
+ * The ciphertext memory size is therefore the given number of
+ * block cipher blocks + the size defined by the
+ * crypto_aead_setauthsize invocation. The caller must ensure
+ * that sufficient memory is available for the ciphertext and
+ * the authentication tag.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
+int crypto_aead_encrypt(struct aead_request *req);
+
+/**
+ * crypto_aead_decrypt() - decrypt ciphertext
+ * @req: reference to the aead_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Decrypt ciphertext data using the aead_request handle. That data structure
+ * and how it is filled with data is discussed with the aead_request_*
+ * functions.
+ *
+ * IMPORTANT NOTE The caller must concatenate the ciphertext followed by the
+ * authentication data / tag. That authentication data / tag
+ * must have the size defined by the crypto_aead_setauthsize
+ * invocation.
+ *
+ *
+ * Return: 0 if the cipher operation was successful; -EBADMSG: The AEAD
+ * cipher operation performs the authentication of the data during the
+ * decryption operation. Therefore, the function returns this error if
+ * the authentication of the ciphertext was unsuccessful (i.e. the
+ * integrity of the ciphertext or the associated data was violated);
+ * < 0 if an error occurred.
+ */
+int crypto_aead_decrypt(struct aead_request *req);
+
+/**
+ * DOC: Asynchronous AEAD Request Handle
+ *
+ * The aead_request data structure contains all pointers to data required for
+ * the AEAD cipher operation. This includes the cipher handle (which can be
+ * used by multiple aead_request instances), pointer to plaintext and
+ * ciphertext, asynchronous callback function, etc. It acts as a handle to the
+ * aead_request_* API calls in a similar way as AEAD handle to the
+ * crypto_aead_* API calls.
+ */
+
+/**
+ * crypto_aead_reqsize() - obtain size of the request data structure
+ * @tfm: cipher handle
+ *
+ * Return: number of bytes
+ */
+static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
+{
+ return tfm->reqsize;
+}
+
+/**
+ * aead_request_set_tfm() - update cipher handle reference in request
+ * @req: request handle to be modified
+ * @tfm: cipher handle that shall be added to the request handle
+ *
+ * Allow the caller to replace the existing aead handle in the request
+ * data structure with a different one.
+ */
+static inline void aead_request_set_tfm(struct aead_request *req,
+ struct crypto_aead *tfm)
+{
+ req->base.tfm = crypto_aead_tfm(tfm);
+}
+
+static inline void aead_request_set_sync_tfm(struct aead_request *req,
+ struct crypto_sync_aead *tfm)
+{
+ aead_request_set_tfm(req, &tfm->base);
+}
+
+/**
+ * aead_request_alloc() - allocate request data structure
+ * @tfm: cipher handle to be registered with the request
+ * @gfp: memory allocation flag that is handed to kmalloc by the API call.
+ *
+ * Allocate the request data structure that must be used with the AEAD
+ * encrypt and decrypt API calls. During the allocation, the provided aead
+ * handle is registered in the request data structure.
+ *
+ * Return: allocated request handle in case of success, or NULL if out of memory
+ */
+static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
+ gfp_t gfp)
+{
+ struct aead_request *req;
+
+ req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp);
+
+ if (likely(req))
+ aead_request_set_tfm(req, tfm);
+
+ return req;
+}
+
+/**
+ * aead_request_free() - zeroize and free request data structure
+ * @req: request data structure cipher handle to be freed
+ */
+static inline void aead_request_free(struct aead_request *req)
+{
+ kfree_sensitive(req);
+}
+
+/**
+ * aead_request_set_callback() - set asynchronous callback function
+ * @req: request handle
+ * @flags: specify zero or an ORing of the flags
+ * CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
+ * increase the wait queue beyond the initial maximum size;
+ * CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
+ * @compl: callback function pointer to be registered with the request handle
+ * @data: The data pointer refers to memory that is not used by the kernel
+ * crypto API, but provided to the callback function for it to use. Here,
+ * the caller can provide a reference to memory the callback function can
+ * operate on. As the callback function is invoked asynchronously to the
+ * related functionality, it may need to access data structures of the
+ * related functionality which can be referenced using this pointer. The
+ * callback function can access the memory via the "data" field in the
+ * crypto_async_request data structure provided to the callback function.
+ *
+ * Setting the callback function that is triggered once the cipher operation
+ * completes
+ *
+ * The callback function is registered with the aead_request handle and
+ * must comply with the following template::
+ *
+ * void callback_function(struct crypto_async_request *req, int error)
+ */
+static inline void aead_request_set_callback(struct aead_request *req,
+ u32 flags,
+ crypto_completion_t compl,
+ void *data)
+{
+ req->base.complete = compl;
+ req->base.data = data;
+ req->base.flags = flags;
+}
+
+/**
+ * aead_request_set_crypt - set data buffers
+ * @req: request handle
+ * @src: source scatter / gather list
+ * @dst: destination scatter / gather list
+ * @cryptlen: number of bytes to process from @src
+ * @iv: IV for the cipher operation which must comply with the IV size defined
+ * by crypto_aead_ivsize()
+ *
+ * Setting the source data and destination data scatter / gather lists which
+ * hold the associated data concatenated with the plaintext or ciphertext. See
+ * below for the authentication tag.
+ *
+ * For encryption, the source is treated as the plaintext and the
+ * destination is the ciphertext. For a decryption operation, the use is
+ * reversed - the source is the ciphertext and the destination is the plaintext.
+ *
+ * The memory structure for cipher operation has the following structure:
+ *
+ * - AEAD encryption input: assoc data || plaintext
+ * - AEAD encryption output: assoc data || ciphertext || auth tag
+ * - AEAD decryption input: assoc data || ciphertext || auth tag
+ * - AEAD decryption output: assoc data || plaintext
+ *
+ * Albeit the kernel requires the presence of the AAD buffer, however,
+ * the kernel does not fill the AAD buffer in the output case. If the
+ * caller wants to have that data buffer filled, the caller must either
+ * use an in-place cipher operation (i.e. same memory location for
+ * input/output memory location).
+ */
+static inline void aead_request_set_crypt(struct aead_request *req,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ unsigned int cryptlen, u8 *iv)
+{
+ req->src = src;
+ req->dst = dst;
+ req->cryptlen = cryptlen;
+ req->iv = iv;
+}
+
+/**
+ * aead_request_set_ad - set associated data information
+ * @req: request handle
+ * @assoclen: number of bytes in associated data
+ *
+ * Setting the AD information. This function sets the length of
+ * the associated data.
+ */
+static inline void aead_request_set_ad(struct aead_request *req,
+ unsigned int assoclen)
+{
+ req->assoclen = assoclen;
+}
+
+#endif /* _CRYPTO_AEAD_H */
diff --git a/include/crypto/aes-cbc-macs.h b/include/crypto/aes-cbc-macs.h
new file mode 100644
index 000000000..06e8a22f8
--- /dev/null
+++ b/include/crypto/aes-cbc-macs.h
@@ -0,0 +1,188 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Support for AES-CMAC, AES-XCBC-MAC, and AES-CBC-MAC
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_CBC_MACS_H
+#define _CRYPTO_AES_CBC_MACS_H
+
+#include <crypto/aes.h>
+#include <linux/string.h>
+
+/**
+ * struct aes_cmac_key - Prepared key for AES-CMAC or AES-XCBC-MAC
+ * @aes: The AES key for cipher block chaining
+ * @k_final: Finalization subkeys for the final block.
+ * k_final[0] (CMAC K1, XCBC-MAC K2) is used if it's a full block.
+ * k_final[1] (CMAC K2, XCBC-MAC K3) is used if it's a partial block.
+ */
+struct aes_cmac_key {
+ struct aes_enckey aes;
+ union {
+ u8 b[AES_BLOCK_SIZE];
+ __be64 w[2];
+ } k_final[2];
+};
+
+/**
+ * aes_cmac_zeroize_key() - Zeroize an aes_cmac_key structure
+ * @key: The location of the key structure that should be zeroized
+ *
+ * Explicitly fills the aes_cmac_key with zeroes. This should be done once
+ * the key is not required anymore to avoid that its contents are leaked
+ * on the stack or heap (if not using kfree_sensitive()).
+ */
+static inline void aes_cmac_zeroize_key(struct aes_cmac_key *key)
+{
+ memzero_explicit(key, sizeof(*key));
+}
+
+/**
+ * struct aes_cmac_ctx - Context for computing an AES-CMAC or AES-XCBC-MAC value
+ * @key: Pointer to the key struct. A pointer is used rather than a copy of the
+ * struct, since the key struct size may be large. It is assumed that the
+ * key lives at least as long as the context.
+ * @partial_len: Number of bytes that have been XOR'ed into @h since the last
+ * AES encryption. This is 0 if no data has been processed yet,
+ * or between 1 and AES_BLOCK_SIZE inclusive otherwise.
+ * @h: The current chaining value
+ */
+struct aes_cmac_ctx {
+ const struct aes_cmac_key *key;
+ size_t partial_len;
+ u8 h[AES_BLOCK_SIZE];
+};
+
+/**
+ * aes_cmac_zeroize_ctx() - Zeroize an aes_cmac_ctx structure
+ * @ctx: The location of the context that should be zeroized
+ *
+ * Explicitly fills the aes_cmac_ctx with zeroes. This should be done once
+ * the context is not required anymore to avoid that its contents are
+ * leaked on the stack or heap. Only required if not using aes_cmac_final().
+ */
+static inline void aes_cmac_zeroize_ctx(struct aes_cmac_ctx *ctx)
+{
+ memzero_explicit(ctx, sizeof(*ctx));
+}
+
+/**
+ * aes_cmac_preparekey() - Prepare a key for AES-CMAC
+ * @key: (output) The key struct to initialize
+ * @in_key: The raw AES key
+ * @key_len: Length of the raw key in bytes. The supported values are
+ * AES_KEYSIZE_128, AES_KEYSIZE_192, and AES_KEYSIZE_256.
+ *
+ * On success, the caller should ensure that the prepared key is zeroized
+ * at the end of its lifetime, e.g. by calling aes_cmac_zeroize_key() or
+ * kfree_sensitive().
+ *
+ * Context: Any context.
+ * Return: 0 on success or -EINVAL if the given key length is invalid. No other
+ * errors are possible, so callers that always pass a valid key length
+ * don't need to check for errors.
+ */
+int aes_cmac_preparekey(struct aes_cmac_key *key, const u8 *in_key,
+ size_t key_len);
+
+/**
+ * aes_xcbcmac_preparekey() - Prepare a key for AES-XCBC-MAC
+ * @key: (output) The key struct to initialize
+ * @in_key: The raw key. As per the AES-XCBC-MAC specification (RFC 3566), this
+ * is 128 bits, matching the internal use of AES-128.
+ *
+ * AES-XCBC-MAC and AES-CMAC are the same except for the key preparation. After
+ * that step, AES-XCBC-MAC is supported via the aes_cmac_* functions.
+ *
+ * New users should use AES-CMAC instead of AES-XCBC-MAC.
+ *
+ * Context: Any context.
+ */
+void aes_xcbcmac_preparekey(struct aes_cmac_key *key,
+ const u8 in_key[at_least AES_KEYSIZE_128]);
+
+/**
+ * aes_cmac_init() - Start computing an AES-CMAC or AES-XCBC-MAC value
+ * @ctx: (output) The context to initialize
+ * @key: The key to use. Note that a pointer to the key is saved in the
+ * context, so the key must live at least as long as the context.
+ *
+ * This supports both AES-CMAC and AES-XCBC-MAC. Which one is done depends on
+ * whether aes_cmac_preparekey() or aes_xcbcmac_preparekey() was called.
+ *
+ * The caller should ensure that the context is zeroized at the end of its
+ * lifetime, e.g. by calling aes_cmac_final() or aes_cmac_zeroize_ctx().
+ */
+static inline void aes_cmac_init(struct aes_cmac_ctx *ctx,
+ const struct aes_cmac_key *key)
+{
+ *ctx = (struct aes_cmac_ctx){ .key = key };
+}
+
+/**
+ * aes_cmac_update() - Update an AES-CMAC or AES-XCBC-MAC context with more data
+ * @ctx: The context to update; must have been initialized
+ * @data: The message data
+ * @data_len: The data length in bytes. Doesn't need to be block-aligned.
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void aes_cmac_update(struct aes_cmac_ctx *ctx, const u8 *data, size_t data_len);
+
+/**
+ * aes_cmac_final() - Finish computing an AES-CMAC or AES-XCBC-MAC value
+ * @ctx: The context to finalize; must have been initialized
+ * @out: (output) The resulting MAC
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void aes_cmac_final(struct aes_cmac_ctx *ctx, u8 out[at_least AES_BLOCK_SIZE]);
+
+/**
+ * aes_cmac() - Compute AES-CMAC or AES-XCBC-MAC in one shot
+ * @key: The key to use
+ * @data: The message data
+ * @data_len: The data length in bytes
+ * @out: (output) The resulting AES-CMAC or AES-XCBC-MAC value
+ *
+ * This supports both AES-CMAC and AES-XCBC-MAC. Which one is done depends on
+ * whether aes_cmac_preparekey() or aes_xcbcmac_preparekey() was called.
+ *
+ * Context: Any context.
+ */
+static inline void aes_cmac(const struct aes_cmac_key *key, const u8 *data,
+ size_t data_len, u8 out[at_least AES_BLOCK_SIZE])
+{
+ struct aes_cmac_ctx ctx;
+
+ aes_cmac_init(&ctx, key);
+ aes_cmac_update(&ctx, data, data_len);
+ aes_cmac_final(&ctx, out);
+}
+
+/*
+ * AES-CBC-MAC support. This is provided only for use by the implementation of
+ * AES-CCM. It should have no other users. Warning: unlike AES-CMAC and
+ * AES-XCBC-MAC, AES-CBC-MAC isn't a secure MAC for variable-length messages.
+ */
+struct aes_cbcmac_ctx {
+ const struct aes_enckey *key;
+ size_t partial_len;
+ u8 h[AES_BLOCK_SIZE];
+};
+static inline void aes_cbcmac_init(struct aes_cbcmac_ctx *ctx,
+ const struct aes_enckey *key)
+{
+ *ctx = (struct aes_cbcmac_ctx){ .key = key };
+}
+void aes_cbcmac_update(struct aes_cbcmac_ctx *ctx, const u8 *data,
+ size_t data_len);
+void aes_cbcmac_final(struct aes_cbcmac_ctx *ctx,
+ u8 out[at_least AES_BLOCK_SIZE]);
+
+#endif /* _CRYPTO_AES_CBC_MACS_H */
diff --git a/include/crypto/aes-cbc.h b/include/crypto/aes-cbc.h
new file mode 100644
index 000000000..7bae34093
--- /dev/null
+++ b/include/crypto/aes-cbc.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AES-CBC and AES-CBC-CTS unauthenticated encryption and decryption
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_CBC_H
+#define _CRYPTO_AES_CBC_H
+
+#include <crypto/aes.h>
+
+/**
+ * aes_cbc_encrypt() - Encrypt data using AES-CBC
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to encrypt. Must be a multiple of AES_BLOCK_SIZE.
+ * @iv: The initialization vector. It is updated with the next value, i.e. the
+ * last ciphertext block (or left unchanged if @len == 0).
+ * @key: The key, already prepared using aes_preparekey() or aes_prepareenckey()
+ *
+ * This supports incremental encryption. The length of each chunk must be a
+ * multiple of AES_BLOCK_SIZE, and the updated @iv must be passed in each time.
+ *
+ * Context: Any context.
+ */
+void aes_cbc_encrypt(u8 *dst, const u8 *src, size_t len,
+ u8 iv[at_least AES_BLOCK_SIZE], aes_encrypt_arg key);
+
+/**
+ * aes_cbc_decrypt() - Decrypt data using AES-CBC
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to decrypt. Must be a multiple of AES_BLOCK_SIZE.
+ * @iv: The initialization vector. It is updated with the next value, i.e. the
+ * last ciphertext block (or left unchanged if @len == 0).
+ * @key: The key, already prepared using aes_preparekey()
+ *
+ * This supports incremental decryption. The length of each chunk must be a
+ * multiple of AES_BLOCK_SIZE, and the updated @iv must be passed in each time.
+ *
+ * Context: Any context.
+ */
+void aes_cbc_decrypt(u8 *dst, const u8 *src, size_t len,
+ u8 iv[at_least AES_BLOCK_SIZE], const struct aes_key *key);
+
+/**
+ * aes_cbc_cts_encrypt() - Encrypt data using AES-CBC-CTS (CS3 variant)
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to encrypt, at least AES_BLOCK_SIZE
+ * @iv: The initialization vector, clobbered by this function
+ * @key: The key, already prepared using aes_preparekey() or aes_prepareenckey()
+ *
+ * Context: Any context.
+ */
+void aes_cbc_cts_encrypt(u8 *dst, const u8 *src, size_t len,
+ u8 iv[at_least AES_BLOCK_SIZE], aes_encrypt_arg key);
+
+/**
+ * aes_cbc_cts_decrypt() - Decrypt data using AES-CBC-CTS (CS3 variant)
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to decrypt, at least AES_BLOCK_SIZE
+ * @iv: The initialization vector, clobbered by this function
+ * @key: The key, already prepared using aes_preparekey()
+ *
+ * Context: Any context.
+ */
+void aes_cbc_cts_decrypt(u8 *dst, const u8 *src, size_t len,
+ u8 iv[at_least AES_BLOCK_SIZE],
+ const struct aes_key *key);
+
+#endif /* _CRYPTO_AES_CBC_H */
diff --git a/include/crypto/aes-ccm.h b/include/crypto/aes-ccm.h
new file mode 100644
index 000000000..8b00859ac
--- /dev/null
+++ b/include/crypto/aes-ccm.h
@@ -0,0 +1,266 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AES-CCM authenticated encryption and decryption
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_CCM_H
+#define _CRYPTO_AES_CCM_H
+
+#include <crypto/aes.h>
+
+/**
+ * struct aes_ccm_key - A key prepared for AES-CCM encryption and decryption
+ */
+struct aes_ccm_key {
+ /* private: */
+ struct aes_enckey aes;
+ size_t authtag_len; /* Length of authentication tags in bytes */
+};
+
+/**
+ * struct aes_ccm_ctx - Context for incrementally en/decrypting a message
+ */
+struct aes_ccm_ctx {
+ /* private: */
+ /*
+ * Pointer to the key, which is assumed to live at least as long as this
+ * struct.
+ */
+ const struct aes_ccm_key *key;
+ /*
+ * The current CBC-MAC chaining value. When not on a block boundary,
+ * the partial block has been XOR'ed into this. The number of partial
+ * bytes is 'partial_len'.
+ */
+ u8 mac[AES_BLOCK_SIZE] __aligned(__alignof__(__be64));
+ /* The current counter, a 128-bit big endian value */
+ u8 ctr[AES_BLOCK_SIZE] __aligned(__alignof__(__be64));
+ /* Buffered keystream for partial block updates */
+ u8 keystream[AES_BLOCK_SIZE] __aligned(__alignof__(__be64));
+ /* Encrypted counter of 0. This gets XOR'ed with the tag at the end. */
+ u8 s0[AES_BLOCK_SIZE] __aligned(__alignof__(__be64));
+ /* Number of associated data bytes remaining to be provided */
+ u64 ad_remaining;
+ /* Number of en/decrypted data bytes remaining to be provided */
+ u64 data_remaining;
+ /* Current partial block length, 0 <= partial_len < AES_BLOCK_SIZE */
+ u32 partial_len;
+ /* True if associated data padding has been done */
+ bool ad_padded;
+};
+
+/**
+ * aes_ccm_preparekey() - Prepare a key for AES-CCM encryption and decryption
+ * @key: (output) The key structure to initialize
+ * @in_key: The raw AES-CCM key
+ * @key_len: Length of the raw key in bytes: 16, 24, or 32
+ * @authtag_len: Length of the authentication tag in bytes:
+ * 4, 6, 8, 10, 12, 14, or 16. 16 is recommended.
+ *
+ * Users should use memzero_explicit() to zeroize the key struct at the end of
+ * its lifetime. (But if this function fails, zeroization is unnecessary.)
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success
+ * * -EINVAL if either of the lengths is invalid
+ */
+int __must_check aes_ccm_preparekey(struct aes_ccm_key *key, const u8 *in_key,
+ size_t key_len, size_t authtag_len);
+
+/**
+ * aes_ccm_encrypt() - Encrypt a message with AES-CCM
+ * @dst: The destination ciphertext data. Can be in-place or out-of-place.
+ * For other overlaps the behavior is unspecified.
+ * @src: The source plaintext data
+ * @data_len: Length of plaintext in bytes (and ciphertext excluding the tag):
+ * at most 2^(120 - (8 * @nonce_len)) - 1
+ * @authtag: The output authentication tag. Length is the authtag_len that was
+ * passed to aes_ccm_preparekey(). Usually protocols using AES-CCM
+ * put the tag at the end of the ciphertext, in which case this should
+ * be set to @dst + @data_len and @dst must have room for the tag.
+ * @ad: The associated data
+ * @ad_len: Length of associated data in bytes
+ * @nonce: The nonce. All (key, nonce) pairs used MUST be distinct.
+ * @nonce_len: Length of the nonce in bytes: between 7 and 13 inclusive
+ * @key: The key, already prepared using aes_ccm_preparekey()
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success
+ * * -EINVAL if @nonce_len is invalid
+ * * -EOVERFLOW if @data_len is too large for the selected @nonce_len
+ */
+int __must_check aes_ccm_encrypt(u8 *dst, const u8 *src, size_t data_len,
+ u8 *authtag, const u8 *ad, size_t ad_len,
+ const u8 *nonce, size_t nonce_len,
+ const struct aes_ccm_key *key);
+
+/**
+ * aes_ccm_decrypt() - Decrypt a message with AES-CCM
+ * @dst: The destination plaintext data. Can be in-place or out-of-place.
+ * For other overlaps the behavior is unspecified.
+ * @src: The source ciphertext data
+ * @data_len: Length of plaintext in bytes (and ciphertext excluding the tag):
+ * at most 2^(120 - (8 * @nonce_len)) - 1
+ * @authtag: The stored authentication tag. Length is the authtag_len that was
+ * passed to aes_ccm_preparekey(). Usually protocols using AES-CCM
+ * put the tag at the end of the ciphertext, in which case this should
+ * be set to @src + @data_len and @src must have room for the tag.
+ * @ad: The associated data
+ * @ad_len: Length of associated data in bytes
+ * @nonce: The nonce
+ * @nonce_len: Length of the nonce in bytes: between 7 and 13 inclusive
+ * @key: The key, already prepared using aes_ccm_preparekey()
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success. This is the only case where any decrypted or associated data
+ * can be used.
+ * * -EBADMSG if the message is inauthentic
+ * * -EINVAL if @nonce_len is invalid
+ * * -EOVERFLOW if @data_len is too large for the selected @nonce_len
+ */
+int __must_check aes_ccm_decrypt(u8 *dst, const u8 *src, size_t data_len,
+ const u8 *authtag, const u8 *ad, size_t ad_len,
+ const u8 *nonce, size_t nonce_len,
+ const struct aes_ccm_key *key);
+
+/**
+ * aes_ccm_init() - Initialize context for incremental AES-CCM encryption or
+ * decryption
+ * @ctx: The context to initialize
+ * @data_len: Length of the en/decrypted data that will be provided in bytes:
+ * at most 2^(120 - (8 * @nonce_len)) - 1
+ * @ad_len: Length of the associated data that will be provided in bytes
+ * @nonce: The nonce. All (key, nonce) pairs used for encryption MUST be
+ * distinct.
+ * @nonce_len: Length of the nonce in bytes: between 7 and 13 inclusive
+ * @key: The key, already prepared using aes_ccm_preparekey(). Note that a
+ * pointer to the key is saved in the context, so the key must live at
+ * least as long as the context.
+ *
+ * Unlike AES-GCM, AES-CCM requires the total lengths of the associated data and
+ * the en/decrypted data to be known during initialization. Callers MUST ensure
+ * that these lengths are correct.
+ *
+ * If this function returns success, the context should be zeroized at the end
+ * of its lifetime. Normally that happens in aes_ccm_encrypt_final() or
+ * aes_ccm_decrypt_final(), but callers that abandon a context without
+ * finalizing it should explicitly zeroize it.
+ *
+ * IMPORTANT: Callers that are decrypting MUST NOT assume that any decrypted or
+ * associated data is authentic until the authentication tag has been verified.
+ * This incremental API is provided solely to support callers that can't
+ * efficiently use the one-shot functions due to using a nonlinear data layout.
+ *
+ * For incremental AES-CCM encryption, use:
+ *
+ * 1. aes_ccm_init()
+ * 2. aes_ccm_auth_update() (any number of times)
+ * 3. aes_ccm_encrypt_update() (any number of times)
+ * 4. aes_ccm_encrypt_final()
+ *
+ * For incremental AES-CCM decryption, use:
+ *
+ * 1. aes_ccm_init()
+ * 2. aes_ccm_auth_update() (any number of times)
+ * 3. aes_ccm_decrypt_update() (any number of times)
+ * 4. aes_ccm_decrypt_final()
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success
+ * * -EINVAL if @nonce_len is invalid
+ * * -EOVERFLOW if @data_len is too large for the selected @nonce_len
+ */
+int __must_check aes_ccm_init(struct aes_ccm_ctx *ctx, u64 data_len, u64 ad_len,
+ const u8 *nonce, size_t nonce_len,
+ const struct aes_ccm_key *key);
+
+/**
+ * aes_ccm_auth_update() - Incrementally process AES-CCM associated data
+ * @ctx: An AES-CCM context
+ * @ad: The associated data
+ * @len: Length of the associated data in bytes
+ *
+ * IMPORTANT: Callers MUST NOT assume that any decrypted or associated data is
+ * authentic until the authentication tag has been verified.
+ *
+ * The total length of the associated data (over all calls to this function)
+ * MUST match the ad_len that was passed to aes_ccm_init().
+ *
+ * Context: Any context.
+ */
+void aes_ccm_auth_update(struct aes_ccm_ctx *ctx, const u8 *ad, size_t len);
+
+/**
+ * aes_ccm_encrypt_update() - Incrementally encrypt data with AES-CCM
+ * @ctx: An AES-CCM context
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source plaintext data
+ * @len: Number of bytes to encrypt
+ *
+ * This can be called only after all associated data has been processed.
+ *
+ * The total length of the encrypted data (over all calls to this function) MUST
+ * match the data_len that was passed to aes_ccm_init().
+ *
+ * Context: Any context.
+ */
+void aes_ccm_encrypt_update(struct aes_ccm_ctx *ctx, u8 *dst, const u8 *src,
+ size_t len);
+
+/**
+ * aes_ccm_decrypt_update() - Incrementally decrypt data with AES-CCM
+ * @ctx: An AES-CCM context
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source ciphertext data (not including auth tag)
+ * @len: Number of bytes to decrypt
+ *
+ * This can be called only after all associated data has been processed.
+ *
+ * The total length of the decrypted data (over all calls to this function) MUST
+ * match the data_len that was passed to aes_ccm_init().
+ *
+ * IMPORTANT: Callers MUST NOT assume that any decrypted or associated data is
+ * authentic until the authentication tag has been verified.
+ *
+ * Context: Any context.
+ */
+void aes_ccm_decrypt_update(struct aes_ccm_ctx *ctx, u8 *dst, const u8 *src,
+ size_t len);
+
+/**
+ * aes_ccm_encrypt_final() - Finish encrypting a message with AES-CCM
+ * @ctx: An AES-CCM context
+ * @authtag: The output authentication tag. Length is the authtag_len that was
+ * passed to aes_ccm_preparekey().
+ *
+ * This also zeroizes @ctx, so the caller doesn't need to do it.
+ *
+ * Context: Any context.
+ */
+void aes_ccm_encrypt_final(struct aes_ccm_ctx *ctx, u8 *authtag);
+
+/**
+ * aes_ccm_decrypt_final() - Finish decrypting a message with AES-CCM
+ * @ctx: An AES-CCM context
+ * @authtag: The stored authentication tag. Length is the authtag_len that was
+ * passed to aes_ccm_preparekey().
+ *
+ * This also zeroizes @ctx, so the caller doesn't need to do it.
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success. This is the only case where any decrypted or associated data
+ * can be used.
+ * * -EBADMSG if the message is inauthentic
+ */
+int __must_check aes_ccm_decrypt_final(struct aes_ccm_ctx *ctx,
+ const u8 *authtag);
+
+#endif /* _CRYPTO_AES_CCM_H */
diff --git a/include/crypto/aes-ctr.h b/include/crypto/aes-ctr.h
new file mode 100644
index 000000000..8e214a857
--- /dev/null
+++ b/include/crypto/aes-ctr.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AES-CTR and AES-XCTR stream ciphers
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_CTR_H
+#define _CRYPTO_AES_CTR_H
+
+#include <crypto/aes.h>
+
+/**
+ * aes_ctr() - AES-CTR en/decryption
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to en/decrypt
+ * @ctr: The counter. It will be incremented by ceil(@len / AES_BLOCK_SIZE).
+ * @key: The key, already prepared using aes_preparekey() or aes_prepareenckey()
+ *
+ * This implements AES in counter mode with a 128-bit big endian counter.
+ *
+ * This exists only for use by the implementation of modes built on top of CTR
+ * (e.g., GCM and CCM) and some legacy protocols that use CTR mode directly.
+ * Callers are expected to know how to use CTR mode appropriately, including
+ * choosing (key, counter) pairs appropriately to avoid keystream reuse.
+ *
+ * This supports incremental en/decryption. The length of each non-final chunk
+ * must be a multiple of AES_BLOCK_SIZE, and the updated @ctr must be passed in
+ * each time.
+ *
+ * Context: Any context.
+ */
+void aes_ctr(u8 *dst, const u8 *src, size_t len,
+ u8 ctr[at_least AES_BLOCK_SIZE], aes_encrypt_arg key);
+
+/**
+ * aes_xctr() - AES-XCTR en/decryption
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to en/decrypt
+ * @ctr: The block counter (in host endianness). For the first call, set it to
+ * 1. It will be incremented by ceil(@len / AES_BLOCK_SIZE).
+ * @iv: The initialization vector
+ * @key: The key, already prepared using aes_preparekey() or aes_prepareenckey()
+ *
+ * This implements AES in XOR Counter mode, as specified in the paper
+ * "Length-preserving encryption with HCTR2"
+ * (https://eprint.iacr.org/2021/1441.pdf).
+ *
+ * This exists only for use by the implementation of modes built on top of XCTR.
+ * Callers are expected to know how to use XCTR mode appropriately, including
+ * choosing (key, IV) pairs appropriately to avoid keystream reuse.
+ *
+ * This supports incremental en/decryption. The length of each non-final chunk
+ * must be a multiple of AES_BLOCK_SIZE, and the updated @ctr must be passed in
+ * each time.
+ *
+ * Context: Any context.
+ */
+void aes_xctr(u8 *dst, const u8 *src, size_t len, u64 *ctr,
+ const u8 iv[at_least AES_BLOCK_SIZE], aes_encrypt_arg key);
+
+#endif /* _CRYPTO_AES_CTR_H */
diff --git a/include/crypto/aes-ecb.h b/include/crypto/aes-ecb.h
new file mode 100644
index 000000000..8cac1f879
--- /dev/null
+++ b/include/crypto/aes-ecb.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AES-ECB unauthenticated encryption and decryption
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_ECB_H
+#define _CRYPTO_AES_ECB_H
+
+#include <crypto/aes.h>
+
+/**
+ * aes_ecb_encrypt() - Encrypt data using AES-ECB
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to encrypt. Must be a multiple of AES_BLOCK_SIZE.
+ * @key: The key, already prepared using aes_preparekey() or aes_prepareenckey()
+ *
+ * ECB mode is insecure by itself. This function exists only for compatibility
+ * with legacy protocols and for internal use by other modes.
+ *
+ * This supports incremental encryption, but the length of each chunk must be a
+ * multiple of AES_BLOCK_SIZE.
+ *
+ * Context: Any context.
+ */
+void aes_ecb_encrypt(u8 *dst, const u8 *src, size_t len, aes_encrypt_arg key);
+
+/**
+ * aes_ecb_decrypt() - Decrypt data using AES-ECB
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to decrypt. Must be a multiple of AES_BLOCK_SIZE.
+ * @key: The key, already prepared using aes_preparekey()
+ *
+ * ECB mode is insecure by itself. This function exists only for compatibility
+ * with legacy protocols and for internal use by other modes.
+ *
+ * This supports incremental decryption, but the length of each chunk must be a
+ * multiple of AES_BLOCK_SIZE.
+ *
+ * Context: Any context.
+ */
+void aes_ecb_decrypt(u8 *dst, const u8 *src, size_t len,
+ const struct aes_key *key);
+
+#endif /* _CRYPTO_AES_ECB_H */
diff --git a/include/crypto/aes-gcm.h b/include/crypto/aes-gcm.h
new file mode 100644
index 000000000..2aee62f01
--- /dev/null
+++ b/include/crypto/aes-gcm.h
@@ -0,0 +1,260 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AES-GCM authenticated encryption and decryption
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_GCM_H
+#define _CRYPTO_AES_GCM_H
+
+#include <crypto/aes.h>
+#include <crypto/gcm.h>
+#include <crypto/gf128hash.h>
+
+/**
+ * struct aes_gcm_key - A key prepared for AES-GCM encryption and decryption
+ */
+struct aes_gcm_key {
+ /* private: */
+ struct aes_enckey aes;
+ struct ghash_key ghash;
+ size_t authtag_len; /* Length of authentication tags in bytes */
+};
+
+/**
+ * struct aes_gcm_ctx - Context for incrementally en/decrypting a message
+ */
+struct aes_gcm_ctx {
+ /* private: */
+ /*
+ * Pointer to the key, which is assumed to live at least as long as this
+ * struct.
+ */
+ const struct aes_gcm_key *key;
+ /* The current GHASH context */
+ struct ghash_ctx ghash;
+ /*
+ * The current counter. This can be viewed as either a 128-bit big
+ * endian counter, or as a 96-bit nonce followed by a 32-bit big endian
+ * counter; it doesn't matter, since the last 32-bit word starts at 1,
+ * and AES-GCM is undefined for messages that would overflow that part.
+ * In practice this means that code optimized for AES-GCM can just
+ * increment the last 32-bit word (wrapping at 2^32), but when needed it
+ * can still call AES-CTR code that does a 128-bit increment.
+ *
+ * 'long' alignment is for crypto_xor() to work more efficiently.
+ */
+ union {
+ u8 ctr[AES_BLOCK_SIZE];
+ __be32 ctr32[AES_BLOCK_SIZE / 4];
+ } __aligned(__alignof__(long));
+ /* Buffered keystream for partial block updates */
+ u8 keystream[AES_BLOCK_SIZE] __aligned(__alignof__(long));
+ /* Encrypted counter of 1. This gets XOR'ed with the tag at the end. */
+ u8 j0_enc[AES_BLOCK_SIZE] __aligned(__alignof__(long));
+ /* Number of associated data bytes processed so far */
+ u64 ad_len;
+ /* Number of en/decrypted bytes processed so far */
+ u64 data_len;
+};
+
+/**
+ * aes_gcm_preparekey() - Prepare a key for AES-GCM encryption and decryption
+ * @key: (output) The key structure to initialize
+ * @in_key: The raw AES-GCM key
+ * @key_len: Length of the raw key in bytes: 16, 24, or 32
+ * @authtag_len: Length of the authentication tag in bytes:
+ * 4, 8, 12, 13, 14, 15, or 16. 16 is recommended.
+ *
+ * Users should use memzero_explicit() to zeroize the key struct at the end of
+ * its lifetime. (But if this function fails, zeroization is unnecessary.)
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success
+ * * -EINVAL if either of the lengths is invalid
+ */
+int __must_check aes_gcm_preparekey(struct aes_gcm_key *key, const u8 *in_key,
+ size_t key_len, size_t authtag_len);
+
+/**
+ * aes_gcm_encrypt() - Encrypt a message with AES-GCM
+ * @dst: The destination ciphertext data. Can be in-place or out-of-place.
+ * For other overlaps the behavior is unspecified.
+ * @src: The source plaintext data
+ * @data_len: Length of plaintext in bytes (and ciphertext excluding the tag):
+ * at most 2^36 - 32
+ * @authtag: The output authentication tag. Length is the authtag_len that was
+ * passed to aes_gcm_preparekey(). Usually protocols using AES-GCM
+ * put the tag at the end of the ciphertext, in which case this should
+ * be set to @dst + @data_len and @dst must have room for the tag.
+ * @ad: The associated data
+ * @ad_len: Length of associated data in bytes: at most 2^61 - 1
+ * @nonce: The 12-byte nonce. All (key, nonce) pairs used MUST be distinct.
+ * @key: The key, already prepared using aes_gcm_preparekey()
+ *
+ * For AES-GMAC (i.e., AES-GCM without any data en/decrypted), use dst=NULL,
+ * src=NULL, and data_len=0 to generate the AES-GMAC value.
+ *
+ * Context: Any context.
+ */
+void aes_gcm_encrypt(u8 *dst, const u8 *src, size_t data_len, u8 *authtag,
+ const u8 *ad, size_t ad_len, const u8 nonce[at_least 12],
+ const struct aes_gcm_key *key);
+
+/**
+ * aes_gcm_decrypt() - Decrypt a message with AES-GCM
+ * @dst: The destination plaintext data. Can be in-place or out-of-place.
+ * For other overlaps the behavior is unspecified.
+ * @src: The source ciphertext data
+ * @data_len: Length of plaintext in bytes (and ciphertext excluding the tag):
+ * at most 2^36 - 32
+ * @authtag: The stored authentication tag. Length is the authtag_len that was
+ * passed to aes_gcm_preparekey(). Usually protocols using AES-GCM
+ * put the tag at the end of the ciphertext, in which case this should
+ * be set to @src + @data_len and @src must have room for the tag.
+ * @ad: The associated data
+ * @ad_len: Length of associated data in bytes: at most 2^61 - 1
+ * @nonce: The 12-byte nonce
+ * @key: The key, already prepared using aes_gcm_preparekey()
+ *
+ * For AES-GMAC (i.e., AES-GCM without any data en/decrypted), use dst=NULL,
+ * src=NULL, and data_len=0 to verify the AES-GMAC value.
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success. This is the only case where any decrypted or associated data
+ * can be used.
+ * * -EBADMSG if the message is inauthentic
+ */
+int __must_check aes_gcm_decrypt(u8 *dst, const u8 *src, size_t data_len,
+ const u8 *authtag, const u8 *ad, size_t ad_len,
+ const u8 nonce[at_least 12],
+ const struct aes_gcm_key *key);
+
+/**
+ * aes_gcm_init() - Initialize context for incremental AES-GCM encryption or
+ * decryption, or for AES-GMAC computation
+ * @ctx: The context to initialize
+ * @nonce: The 12-byte nonce. All (key, nonce) pairs used for encryption or MAC
+ * generation MUST be distinct.
+ * @key: The key, already prepared using aes_gcm_preparekey(). Note that a
+ * pointer to the key is saved in the context, so the key must live at
+ * least as long as the context.
+ *
+ * The context should be zeroized at the end of its lifetime. Normally that
+ * happens in aes_gcm_encrypt_final() or aes_gcm_decrypt_final(), but callers
+ * that abandon a context without finalizing it should explicitly zeroize it.
+ *
+ * IMPORTANT: Callers that are decrypting data or computing a GMAC value for
+ * verification MUST NOT assume that any decrypted or associated data is
+ * authentic until the authentication tag has been verified. This incremental
+ * API is provided solely to support callers that can't efficiently use the
+ * one-shot functions due to using a nonlinear data layout.
+ *
+ * For incremental AES-GCM encryption, use:
+ *
+ * 1. aes_gcm_init()
+ * 2. aes_gcm_auth_update() (any number of times)
+ * 3. aes_gcm_encrypt_update() (any number of times)
+ * 4. aes_gcm_encrypt_final()
+ *
+ * For incremental AES-GCM decryption, use:
+ *
+ * 1. aes_gcm_init()
+ * 2. aes_gcm_auth_update() (any number of times)
+ * 3. aes_gcm_decrypt_update() (any number of times)
+ * 4. aes_gcm_decrypt_final()
+ *
+ * AES-GMAC is just AES-GCM with zero bytes en/decrypted. For incremental
+ * AES-GMAC computation, use:
+ *
+ * 1. aes_gcm_init()
+ * 2. aes_gcm_auth_update() (any number of times)
+ * 3. aes_gcm_encrypt_final() to return the computed tag to the caller, or
+ * aes_gcm_decrypt_final() to directly verify the computed tag
+ *
+ * Context: Any context.
+ */
+void aes_gcm_init(struct aes_gcm_ctx *ctx, const u8 nonce[at_least 12],
+ const struct aes_gcm_key *key);
+
+/**
+ * aes_gcm_auth_update() - Incrementally process AES-GCM associated data
+ * @ctx: An AES-GCM context
+ * @ad: The associated data
+ * @len: Number of bytes provided. The caller must ensure that the total
+ * associated data length doesn't exceed GCM's limit of 2^61 - 1.
+ *
+ * IMPORTANT: Callers MUST NOT assume that any decrypted or associated data is
+ * authentic until the authentication tag has been verified.
+ *
+ * Context: Any context.
+ */
+void aes_gcm_auth_update(struct aes_gcm_ctx *ctx, const u8 *ad, size_t len);
+
+/**
+ * aes_gcm_encrypt_update() - Incrementally encrypt data with AES-GCM
+ * @ctx: An AES-GCM context
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source plaintext data
+ * @len: Number of bytes to encrypt. The caller must ensure that the total
+ * number of bytes encrypted doesn't exceed GCM's limit of 2^36 - 32.
+ *
+ * This can be called only after all associated data has been processed.
+ *
+ * Context: Any context.
+ */
+void aes_gcm_encrypt_update(struct aes_gcm_ctx *ctx, u8 *dst, const u8 *src,
+ size_t len);
+
+/**
+ * aes_gcm_decrypt_update() - Incrementally decrypt data with AES-GCM
+ * @ctx: An AES-GCM context
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source ciphertext data (not including auth tag)
+ * @len: Number of bytes to decrypt. The caller must ensure that the total
+ * number of bytes decrypted doesn't exceed GCM's limit of 2^36 - 32.
+ *
+ * This can be called only after all associated data has been processed.
+ *
+ * IMPORTANT: Callers MUST NOT assume that any decrypted or associated data is
+ * authentic until the authentication tag has been verified.
+ *
+ * Context: Any context.
+ */
+void aes_gcm_decrypt_update(struct aes_gcm_ctx *ctx, u8 *dst, const u8 *src,
+ size_t len);
+
+/**
+ * aes_gcm_encrypt_final() - Finish encrypting a message with AES-GCM
+ * @ctx: An AES-GCM context
+ * @authtag: The output authentication tag. Length is the authtag_len that was
+ * passed to aes_gcm_preparekey().
+ *
+ * This also zeroizes @ctx, so the caller doesn't need to do it.
+ *
+ * Context: Any context.
+ */
+void aes_gcm_encrypt_final(struct aes_gcm_ctx *ctx, u8 *authtag);
+
+/**
+ * aes_gcm_decrypt_final() - Finish decrypting a message with AES-GCM
+ * @ctx: An AES-GCM context
+ * @authtag: The stored authentication tag. Length is the authtag_len that was
+ * passed to aes_gcm_preparekey().
+ *
+ * This also zeroizes @ctx, so the caller doesn't need to do it.
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success. This is the only case where any decrypted or associated data
+ * can be used.
+ * * -EBADMSG if the message is inauthentic
+ */
+int __must_check aes_gcm_decrypt_final(struct aes_gcm_ctx *ctx,
+ const u8 *authtag);
+
+#endif /* _CRYPTO_AES_GCM_H */
diff --git a/include/crypto/aes-xts.h b/include/crypto/aes-xts.h
new file mode 100644
index 000000000..b9e828265
--- /dev/null
+++ b/include/crypto/aes-xts.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AES-XTS unauthenticated encryption and decryption
+ *
+ * Copyright 2026 Google LLC
+ */
+#ifndef _CRYPTO_AES_XTS_H
+#define _CRYPTO_AES_XTS_H
+
+#include <crypto/aes.h>
+#include <crypto/xts.h>
+
+/**
+ * struct aes_xts_key - A key prepared for AES-XTS encryption and decryption
+ *
+ * Note that (depending on the architecture) this typically is around 768 bytes,
+ * which makes it a bit too large to allocate on the stack in most cases.
+ */
+struct aes_xts_key {
+ /* private: */
+ struct aes_key main_key;
+ struct aes_enckey tweak_key;
+};
+
+/**
+ * aes_xts_preparekey() - Prepare a key for AES-XTS encryption and decryption
+ * @key: (output) The key structure to initialize
+ * @in_key: The raw AES-XTS key
+ * @key_len: Length of the raw key in bytes
+ * @flags: Optional flag XTS_FORBID_WEAK_KEYS to forbid keys whose two halves
+ * are the same.
+ *
+ * Users should use memzero_explicit() to zeroize the key struct at the end of
+ * its lifetime. (But if this function fails, zeroization is unnecessary.)
+ *
+ * Context: Any context.
+ * Return:
+ * * 0 on success
+ * * -EINVAL if the key is rejected because its length isn't 32, 64, or (when
+ * FIPS mode isn't enabled) 48; or because its two halves are the same and
+ * either XTS_FORBID_WEAK_KEYS is given or FIPS mode is enabled.
+ */
+int __must_check aes_xts_preparekey(struct aes_xts_key *key, const u8 *in_key,
+ size_t key_len, int flags);
+
+/**
+ * aes_xts_encrypt() - Encrypt data using AES-XTS
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to encrypt. On non-final calls it must be a nonzero
+ * multiple of AES_BLOCK_SIZE. On the final call it can be any value >=
+ * AES_BLOCK_SIZE, i.e. ciphertext stealing is supported.
+ * @tweak: The tweak. It is updated with the next value, unless @len isn't a
+ * multiple of AES_BLOCK_SIZE in which case the value is unspecified.
+ * @key: The key, already prepared using aes_xts_preparekey()
+ * @cont: %false to begin encrypting a new message (do the tweak encryption);
+ * %true to continue encrypting a message (skip tweak encryption)
+ *
+ * This supports both one-shot and incremental encryption. On the first call,
+ * pass @cont = %false. On any later calls, pass @cont = %true and the updated
+ * @tweak; all earlier @len must have been multiples of AES_BLOCK_SIZE.
+ *
+ * Context: Any context.
+ */
+void aes_xts_encrypt(u8 *dst, const u8 *src, size_t len,
+ u8 tweak[at_least AES_BLOCK_SIZE],
+ const struct aes_xts_key *key, bool cont);
+
+/**
+ * aes_xts_decrypt() - Decrypt data using AES-XTS
+ * @dst: The destination buffer. Can be in-place or out-of-place. For other
+ * overlaps the behavior is unspecified.
+ * @src: The source data
+ * @len: Number of bytes to decrypt. On non-final calls it must be a nonzero
+ * multiple of AES_BLOCK_SIZE. On the final call it can be any value >=
+ * AES_BLOCK_SIZE, i.e. ciphertext stealing is supported.
+ * @tweak: The tweak. It is updated with the next value, unless @len isn't a
+ * multiple of AES_BLOCK_SIZE in which case the value is unspecified.
+ * @key: The key, already prepared using aes_xts_preparekey()
+ * @cont: %false to begin decrypting a new message (do the tweak encryption);
+ * %true to continue decrypting a message (skip tweak encryption)
+ *
+ * This supports both one-shot and incremental decryption. On the first call,
+ * pass @cont = %false. On any later calls, pass @cont = %true and the updated
+ * @tweak; all earlier @len must have been multiples of AES_BLOCK_SIZE.
+ *
+ * Context: Any context.
+ */
+void aes_xts_decrypt(u8 *dst, const u8 *src, size_t len,
+ u8 tweak[at_least AES_BLOCK_SIZE],
+ const struct aes_xts_key *key, bool cont);
+
+#endif /* _CRYPTO_AES_XTS_H */
diff --git a/include/crypto/aes.h b/include/crypto/aes.h
new file mode 100644
index 000000000..3279cfa54
--- /dev/null
+++ b/include/crypto/aes.h
@@ -0,0 +1,401 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for AES algorithms
+ */
+
+#ifndef _CRYPTO_AES_H
+#define _CRYPTO_AES_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define AES_MIN_KEY_SIZE 16
+#define AES_MAX_KEY_SIZE 32
+#define AES_KEYSIZE_128 16
+#define AES_KEYSIZE_192 24
+#define AES_KEYSIZE_256 32
+#define AES_BLOCK_SIZE 16
+#define AES_MAX_KEYLENGTH (15 * 16)
+#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32))
+
+/*
+ * The POWER8 VSX optimized AES assembly code is borrowed from OpenSSL and
+ * inherits OpenSSL's AES_KEY format, which stores the number of rounds after
+ * the round keys. That assembly code is difficult to change. So for
+ * compatibility purposes we reserve space for the extra nrounds field on PPC64.
+ *
+ * Note: when prepared for decryption, the round keys are just the reversed
+ * standard round keys, not the round keys for the Equivalent Inverse Cipher.
+ */
+struct p8_aes_key {
+ u32 rndkeys[AES_MAX_KEYLENGTH_U32];
+ int nrounds;
+};
+
+union aes_enckey_arch {
+ u32 rndkeys[AES_MAX_KEYLENGTH_U32];
+#ifdef CONFIG_CRYPTO_LIB_AES_ARCH
+#if defined(CONFIG_PPC) && defined(CONFIG_SPE)
+ /* Used unconditionally (when SPE AES code is enabled in kconfig) */
+ u32 spe_enc_key[AES_MAX_KEYLENGTH_U32] __aligned(8);
+#elif defined(CONFIG_PPC)
+ /*
+ * Kernels that include the POWER8 VSX optimized AES code use this field
+ * when that code is usable at key preparation time. Otherwise they
+ * fall back to rndkeys. In the latter case, p8.nrounds (which doesn't
+ * overlap rndkeys) is set to 0 to differentiate the two formats.
+ */
+ struct p8_aes_key p8;
+#elif defined(CONFIG_S390)
+ /* Used when the CPU supports CPACF AES for this key's length */
+ u8 raw_key[AES_MAX_KEY_SIZE];
+#elif defined(CONFIG_SPARC64)
+ /* Used when the CPU supports the SPARC64 AES opcodes */
+ u64 sparc_rndkeys[AES_MAX_KEYLENGTH / sizeof(u64)];
+#endif
+#endif /* CONFIG_CRYPTO_LIB_AES_ARCH */
+};
+
+union aes_invkey_arch {
+ u32 inv_rndkeys[AES_MAX_KEYLENGTH_U32];
+#ifdef CONFIG_CRYPTO_LIB_AES_ARCH
+#if defined(CONFIG_PPC) && defined(CONFIG_SPE)
+ /* Used unconditionally (when SPE AES code is enabled in kconfig) */
+ u32 spe_dec_key[AES_MAX_KEYLENGTH_U32] __aligned(8);
+#elif defined(CONFIG_PPC)
+ /* Used conditionally, analogous to aes_enckey_arch::p8 */
+ struct p8_aes_key p8;
+#endif
+#endif /* CONFIG_CRYPTO_LIB_AES_ARCH */
+};
+
+/**
+ * struct aes_enckey - An AES key prepared for encryption
+ * @len: Key length in bytes: 16 for AES-128, 24 for AES-192, 32 for AES-256.
+ * @nrounds: Number of rounds: 10 for AES-128, 12 for AES-192, 14 for AES-256.
+ * This is '6 + @len / 4' and is cached so that AES implementations
+ * that need it don't have to recompute it for each en/decryption.
+ * @padding: Padding to make offsetof(@k) be a multiple of 16, so that aligning
+ * this struct to a 16-byte boundary results in @k also being 16-byte
+ * aligned. Users aren't required to align this struct to 16 bytes,
+ * but it may slightly improve performance.
+ * @k: This typically contains the AES round keys as an array of '@nrounds + 1'
+ * groups of four u32 words. However, architecture-specific implementations
+ * of AES may store something else here, e.g. just the raw key if it's all
+ * they need.
+ *
+ * Note that this struct is about half the size of struct aes_key. This is
+ * separate from struct aes_key so that modes that need only AES encryption
+ * (e.g. AES-GCM, AES-CTR, AES-CMAC, tweak key in AES-XTS) don't incur the time
+ * and space overhead of computing and caching the decryption round keys.
+ *
+ * Note that there's no decryption-only equivalent (i.e. "struct aes_deckey"),
+ * since (a) it's rare that modes need decryption-only, and (b) some AES
+ * implementations use the same @k for both encryption and decryption, either
+ * always or conditionally; in the latter case both @k and @inv_k are needed.
+ */
+struct aes_enckey {
+ u32 len;
+ u32 nrounds;
+ u32 padding[2];
+ union aes_enckey_arch k;
+};
+
+/**
+ * struct aes_key - An AES key prepared for encryption and decryption
+ * @aes_enckey: Common fields and the key prepared for encryption
+ * @inv_k: This generally contains the round keys for the AES Equivalent
+ * Inverse Cipher, as an array of '@nrounds + 1' groups of four u32
+ * words. However, architecture-specific implementations of AES may
+ * store something else here. For example, they may leave this field
+ * uninitialized if they use @k for both encryption and decryption.
+ */
+struct aes_key {
+ struct aes_enckey; /* Include all fields of aes_enckey. */
+ union aes_invkey_arch inv_k;
+};
+
+/*
+ * Please ensure that the first two fields are 16-byte aligned
+ * relative to the start of the structure, i.e., don't move them!
+ */
+struct crypto_aes_ctx {
+ u32 key_enc[AES_MAX_KEYLENGTH_U32];
+ u32 key_dec[AES_MAX_KEYLENGTH_U32];
+ u32 key_length;
+};
+
+/*
+ * validate key length for AES algorithms
+ */
+static inline int aes_check_keylen(size_t keylen)
+{
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ case AES_KEYSIZE_192:
+ case AES_KEYSIZE_256:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * aes_expandkey - Expands the AES key as described in FIPS-197
+ * @ctx: The location where the computed key will be stored.
+ * @in_key: The supplied key.
+ * @key_len: The length of the supplied key.
+ *
+ * Returns 0 on success. The function fails only if an invalid key size (or
+ * pointer) is supplied.
+ * The expanded key size is 240 bytes (max of 14 rounds with a unique 16 bytes
+ * key schedule plus a 16 bytes key which is used before the first round).
+ * The decryption key is prepared for the "Equivalent Inverse Cipher" as
+ * described in FIPS-197. The first slot (16 bytes) of each key (enc or dec) is
+ * for the initial combination, the second slot for the first round and so on.
+ */
+int aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
+ unsigned int key_len);
+
+/*
+ * The following functions are temporarily exported for use by the AES mode
+ * implementations in arch/$(SRCARCH)/crypto/. These exports will go away when
+ * that code is migrated into lib/crypto/.
+ */
+#ifdef CONFIG_ARM64
+int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
+ unsigned int key_len);
+asmlinkage void neon_aes_ecb_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks);
+asmlinkage void neon_aes_ecb_decrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks);
+asmlinkage void neon_aes_cbc_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks, u8 iv[]);
+asmlinkage void neon_aes_cbc_decrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks, u8 iv[]);
+asmlinkage void neon_aes_cbc_cts_encrypt(u8 out[], u8 const in[],
+ u32 const rk[], int rounds, int bytes,
+ u8 const iv[]);
+asmlinkage void neon_aes_cbc_cts_decrypt(u8 out[], u8 const in[],
+ u32 const rk[], int rounds, int bytes,
+ u8 const iv[]);
+asmlinkage void neon_aes_ctr_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int bytes, u8 ctr[]);
+asmlinkage void neon_aes_xctr_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int bytes, u8 ctr[],
+ int byte_ctr);
+asmlinkage void neon_aes_xts_encrypt(u8 out[], u8 const in[], u32 const rk1[],
+ int rounds, int bytes, u32 const rk2[],
+ u8 iv[], int first);
+asmlinkage void neon_aes_xts_decrypt(u8 out[], u8 const in[], u32 const rk1[],
+ int rounds, int bytes, u32 const rk2[],
+ u8 iv[], int first);
+asmlinkage void neon_aes_essiv_cbc_encrypt(u8 out[], u8 const in[],
+ u32 const rk1[], int rounds,
+ int blocks, u8 iv[],
+ u32 const rk2[]);
+asmlinkage void neon_aes_essiv_cbc_decrypt(u8 out[], u8 const in[],
+ u32 const rk1[], int rounds,
+ int blocks, u8 iv[],
+ u32 const rk2[]);
+
+asmlinkage void ce_aes_ecb_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks);
+asmlinkage void ce_aes_ecb_decrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks);
+asmlinkage void ce_aes_cbc_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks, u8 iv[]);
+asmlinkage void ce_aes_cbc_decrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int blocks, u8 iv[]);
+asmlinkage void ce_aes_cbc_cts_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int bytes, u8 const iv[]);
+asmlinkage void ce_aes_cbc_cts_decrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int bytes, u8 const iv[]);
+asmlinkage void ce_aes_ctr_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int bytes, u8 ctr[]);
+asmlinkage void ce_aes_xctr_encrypt(u8 out[], u8 const in[], u32 const rk[],
+ int rounds, int bytes, u8 ctr[],
+ int byte_ctr);
+asmlinkage void ce_aes_xts_encrypt(u8 out[], u8 const in[], u32 const rk1[],
+ int rounds, int bytes, u32 const rk2[],
+ u8 iv[], int first);
+asmlinkage void ce_aes_xts_decrypt(u8 out[], u8 const in[], u32 const rk1[],
+ int rounds, int bytes, u32 const rk2[],
+ u8 iv[], int first);
+asmlinkage void ce_aes_essiv_cbc_encrypt(u8 out[], u8 const in[],
+ u32 const rk1[], int rounds,
+ int blocks, u8 iv[], u32 const rk2[]);
+asmlinkage void ce_aes_essiv_cbc_decrypt(u8 out[], u8 const in[],
+ u32 const rk1[], int rounds,
+ int blocks, u8 iv[], u32 const rk2[]);
+asmlinkage void ce_aes_mac_update(u8 const in[], u32 const rk[], int rounds,
+ size_t blocks, u8 dg[], int enc_before,
+ int enc_after);
+#elif defined(CONFIG_PPC)
+void ppc_expand_key_128(u32 *key_enc, const u8 *key);
+void ppc_expand_key_192(u32 *key_enc, const u8 *key);
+void ppc_expand_key_256(u32 *key_enc, const u8 *key);
+void ppc_generate_decrypt_key(u32 *key_dec, u32 *key_enc, unsigned int key_len);
+void ppc_encrypt_ecb(u8 *out, const u8 *in, u32 *key_enc, u32 rounds,
+ u32 bytes);
+void ppc_decrypt_ecb(u8 *out, const u8 *in, u32 *key_dec, u32 rounds,
+ u32 bytes);
+void ppc_encrypt_cbc(u8 *out, const u8 *in, u32 *key_enc, u32 rounds, u32 bytes,
+ u8 *iv);
+void ppc_decrypt_cbc(u8 *out, const u8 *in, u32 *key_dec, u32 rounds, u32 bytes,
+ u8 *iv);
+void ppc_crypt_ctr(u8 *out, const u8 *in, u32 *key_enc, u32 rounds, u32 bytes,
+ u8 *iv);
+void ppc_encrypt_xts(u8 *out, const u8 *in, u32 *key_enc, u32 rounds, u32 bytes,
+ u8 *iv, u32 *key_twk);
+void ppc_decrypt_xts(u8 *out, const u8 *in, u32 *key_dec, u32 rounds, u32 bytes,
+ u8 *iv, u32 *key_twk);
+int aes_p8_set_encrypt_key(const u8 *userKey, const int bits,
+ struct p8_aes_key *key);
+int aes_p8_set_decrypt_key(const u8 *userKey, const int bits,
+ struct p8_aes_key *key);
+void aes_p8_encrypt(const u8 *in, u8 *out, const struct p8_aes_key *key);
+void aes_p8_decrypt(const u8 *in, u8 *out, const struct p8_aes_key *key);
+void aes_p8_cbc_encrypt(const u8 *in, u8 *out, size_t len,
+ const struct p8_aes_key *key, u8 *iv, bool enc);
+void aes_p8_ctr32_encrypt_blocks(const u8 *in, u8 *out, size_t len,
+ const struct p8_aes_key *key, const u8 *iv);
+void aes_p8_xts_encrypt(const u8 *in, u8 *out, size_t len,
+ const struct p8_aes_key *key1,
+ const struct p8_aes_key *key2, u8 *iv);
+void aes_p8_xts_decrypt(const u8 *in, u8 *out, size_t len,
+ const struct p8_aes_key *key1,
+ const struct p8_aes_key *key2, u8 *iv);
+#elif defined(CONFIG_SPARC64)
+void aes_sparc64_key_expand(const u32 *in_key, u64 *output_key,
+ unsigned int key_len);
+void aes_sparc64_load_encrypt_keys_128(const u64 *key);
+void aes_sparc64_load_encrypt_keys_192(const u64 *key);
+void aes_sparc64_load_encrypt_keys_256(const u64 *key);
+void aes_sparc64_load_decrypt_keys_128(const u64 *key);
+void aes_sparc64_load_decrypt_keys_192(const u64 *key);
+void aes_sparc64_load_decrypt_keys_256(const u64 *key);
+void aes_sparc64_ecb_encrypt_128(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len);
+void aes_sparc64_ecb_encrypt_192(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len);
+void aes_sparc64_ecb_encrypt_256(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len);
+void aes_sparc64_ecb_decrypt_128(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len);
+void aes_sparc64_ecb_decrypt_192(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len);
+void aes_sparc64_ecb_decrypt_256(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len);
+void aes_sparc64_cbc_encrypt_128(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_cbc_encrypt_192(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_cbc_encrypt_256(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_cbc_decrypt_128(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_cbc_decrypt_192(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_cbc_decrypt_256(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_ctr_crypt_128(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_ctr_crypt_192(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+void aes_sparc64_ctr_crypt_256(const u64 *key, const u64 *input, u64 *output,
+ unsigned int len, u64 *iv);
+#endif
+
+/**
+ * aes_preparekey() - Prepare an AES key for encryption and decryption
+ * @key: (output) The key structure to initialize
+ * @in_key: The raw AES key
+ * @key_len: Length of the raw key in bytes. Should be either AES_KEYSIZE_128,
+ * AES_KEYSIZE_192, or AES_KEYSIZE_256.
+ *
+ * This prepares an AES key for both the encryption and decryption directions of
+ * the block cipher. Typically this involves expanding the raw key into both
+ * the standard round keys and the Equivalent Inverse Cipher round keys, but
+ * some architecture-specific implementations don't do the full expansion here.
+ *
+ * The caller is responsible for zeroizing both the struct aes_key and the raw
+ * key once they are no longer needed.
+ *
+ * If you don't need decryption support, use aes_prepareenckey() instead.
+ *
+ * Return: 0 on success or -EINVAL if the given key length is invalid. No other
+ * errors are possible, so callers that always pass a valid key length
+ * don't need to check for errors.
+ *
+ * Context: Any context.
+ */
+int aes_preparekey(struct aes_key *key, const u8 *in_key, size_t key_len);
+
+/**
+ * aes_prepareenckey() - Prepare an AES key for encryption-only
+ * @key: (output) The key structure to initialize
+ * @in_key: The raw AES key
+ * @key_len: Length of the raw key in bytes. Should be either AES_KEYSIZE_128,
+ * AES_KEYSIZE_192, or AES_KEYSIZE_256.
+ *
+ * This prepares an AES key for only the encryption direction of the block
+ * cipher. Typically this involves expanding the raw key into only the standard
+ * round keys, resulting in a struct about half the size of struct aes_key.
+ *
+ * The caller is responsible for zeroizing both the struct aes_enckey and the
+ * raw key once they are no longer needed.
+ *
+ * Note that while the resulting prepared key supports only AES encryption, it
+ * can still be used for decrypting in a mode of operation that uses AES in only
+ * the encryption (forward) direction, for example counter mode.
+ *
+ * Return: 0 on success or -EINVAL if the given key length is invalid. No other
+ * errors are possible, so callers that always pass a valid key length
+ * don't need to check for errors.
+ *
+ * Context: Any context.
+ */
+int aes_prepareenckey(struct aes_enckey *key, const u8 *in_key, size_t key_len);
+
+typedef union {
+ const struct aes_enckey *enc_key;
+ const struct aes_key *full_key;
+} aes_encrypt_arg __attribute__ ((__transparent_union__));
+
+/**
+ * aes_encrypt() - Encrypt a single AES block
+ * @key: The AES key, as a pointer to either an encryption-only key
+ * (struct aes_enckey) or a full, bidirectional key (struct aes_key).
+ * @out: Buffer to store the ciphertext block
+ * @in: Buffer containing the plaintext block
+ *
+ * Context: Any context.
+ */
+void aes_encrypt(aes_encrypt_arg key, u8 out[at_least AES_BLOCK_SIZE],
+ const u8 in[at_least AES_BLOCK_SIZE]);
+
+/**
+ * aes_decrypt() - Decrypt a single AES block
+ * @key: The AES key, previously initialized by aes_preparekey()
+ * @out: Buffer to store the plaintext block
+ * @in: Buffer containing the ciphertext block
+ *
+ * Context: Any context.
+ */
+void aes_decrypt(const struct aes_key *key, u8 out[at_least AES_BLOCK_SIZE],
+ const u8 in[at_least AES_BLOCK_SIZE]);
+
+extern const u8 crypto_aes_sbox[];
+extern const u8 crypto_aes_inv_sbox[];
+extern const u32 aes_enc_tab[256];
+extern const u32 aes_dec_tab[256];
+
+void aescfb_encrypt(const struct aes_enckey *key, u8 *dst, const u8 *src,
+ int len, const u8 iv[AES_BLOCK_SIZE]);
+void aescfb_decrypt(const struct aes_enckey *key, u8 *dst, const u8 *src,
+ int len, const u8 iv[AES_BLOCK_SIZE]);
+
+#endif
diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
new file mode 100644
index 000000000..cdf7da74b
--- /dev/null
+++ b/include/crypto/akcipher.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Public Key Encryption
+ *
+ * Copyright (c) 2015, Intel Corporation
+ * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
+ */
+#ifndef _CRYPTO_AKCIPHER_H
+#define _CRYPTO_AKCIPHER_H
+
+#include <linux/atomic.h>
+#include <linux/crypto.h>
+
+/**
+ * struct akcipher_request - public key cipher request
+ *
+ * @base: Common attributes for async crypto requests
+ * @src: Source data
+ * @dst: Destination data
+ * @src_len: Size of the input buffer
+ * @dst_len: Size of @dst buffer
+ * It needs to be at least as big as the expected result
+ * depending on the operation.
+ * After operation it will be updated with the actual size of the
+ * result.
+ * In case of error where the dst sgl size was insufficient,
+ * it will be updated to the size required for the operation.
+ * @__ctx: Start of private context data
+ */
+struct akcipher_request {
+ struct crypto_async_request base;
+ struct scatterlist *src;
+ struct scatterlist *dst;
+ unsigned int src_len;
+ unsigned int dst_len;
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ * struct crypto_akcipher - user-instantiated objects which encapsulate
+ * algorithms and core processing logic
+ *
+ * @reqsize: Request context size required by algorithm implementation
+ * @base: Common crypto API algorithm data structure
+ */
+struct crypto_akcipher {
+ unsigned int reqsize;
+
+ struct crypto_tfm base;
+};
+
+/**
+ * struct akcipher_alg - generic public key cipher algorithm
+ *
+ * @encrypt: Function performs an encrypt operation as defined by public key
+ * algorithm. In case of error, where the dst_len was insufficient,
+ * the req->dst_len will be updated to the size required for the
+ * operation
+ * @decrypt: Function performs a decrypt operation as defined by public key
+ * algorithm. In case of error, where the dst_len was insufficient,
+ * the req->dst_len will be updated to the size required for the
+ * operation
+ * @set_pub_key: Function invokes the algorithm specific set public key
+ * function, which knows how to decode and interpret
+ * the BER encoded public key and parameters
+ * @set_priv_key: Function invokes the algorithm specific set private key
+ * function, which knows how to decode and interpret
+ * the BER encoded private key and parameters
+ * @max_size: Function returns dest buffer size required for a given key.
+ * @init: Initialize the cryptographic transformation object.
+ * This function is used to initialize the cryptographic
+ * transformation object. This function is called only once at
+ * the instantiation time, right after the transformation context
+ * was allocated. In case the cryptographic hardware has some
+ * special requirements which need to be handled by software, this
+ * function shall check for the precise requirement of the
+ * transformation and put any software fallbacks in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
+ *
+ * @base: Common crypto API algorithm data structure
+ */
+struct akcipher_alg {
+ int (*encrypt)(struct akcipher_request *req);
+ int (*decrypt)(struct akcipher_request *req);
+ int (*set_pub_key)(struct crypto_akcipher *tfm, const void *key,
+ unsigned int keylen);
+ int (*set_priv_key)(struct crypto_akcipher *tfm, const void *key,
+ unsigned int keylen);
+ unsigned int (*max_size)(struct crypto_akcipher *tfm);
+ int (*init)(struct crypto_akcipher *tfm);
+ void (*exit)(struct crypto_akcipher *tfm);
+
+ struct crypto_alg base;
+};
+
+/**
+ * DOC: Generic Public Key Cipher API
+ *
+ * The Public Key Cipher API is used with the algorithms of type
+ * CRYPTO_ALG_TYPE_AKCIPHER (listed as type "akcipher" in /proc/crypto)
+ */
+
+/**
+ * crypto_alloc_akcipher() - allocate AKCIPHER tfm handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * public key algorithm e.g. "rsa"
+ * @type: specifies the type of the algorithm
+ * @mask: specifies the mask for the algorithm
+ *
+ * Allocate a handle for public key algorithm. The returned struct
+ * crypto_akcipher is the handle that is required for any subsequent
+ * API invocation for the public key operations.
+ *
+ * Return: allocated handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_akcipher *crypto_alloc_akcipher(const char *alg_name, u32 type,
+ u32 mask);
+
+static inline struct crypto_tfm *crypto_akcipher_tfm(
+ struct crypto_akcipher *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct akcipher_alg *__crypto_akcipher_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct akcipher_alg, base);
+}
+
+static inline struct crypto_akcipher *__crypto_akcipher_tfm(
+ struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_akcipher, base);
+}
+
+static inline struct akcipher_alg *crypto_akcipher_alg(
+ struct crypto_akcipher *tfm)
+{
+ return __crypto_akcipher_alg(crypto_akcipher_tfm(tfm)->__crt_alg);
+}
+
+static inline unsigned int crypto_akcipher_reqsize(struct crypto_akcipher *tfm)
+{
+ return tfm->reqsize;
+}
+
+static inline void akcipher_request_set_tfm(struct akcipher_request *req,
+ struct crypto_akcipher *tfm)
+{
+ req->base.tfm = crypto_akcipher_tfm(tfm);
+}
+
+static inline struct crypto_akcipher *crypto_akcipher_reqtfm(
+ struct akcipher_request *req)
+{
+ return __crypto_akcipher_tfm(req->base.tfm);
+}
+
+/**
+ * crypto_free_akcipher() - free AKCIPHER tfm handle
+ *
+ * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_akcipher(struct crypto_akcipher *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_akcipher_tfm(tfm));
+}
+
+/**
+ * akcipher_request_alloc() - allocates public key request
+ *
+ * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
+ * @gfp: allocation flags
+ *
+ * Return: allocated handle in case of success or NULL in case of an error.
+ */
+static inline struct akcipher_request *akcipher_request_alloc(
+ struct crypto_akcipher *tfm, gfp_t gfp)
+{
+ struct akcipher_request *req;
+
+ req = kmalloc(sizeof(*req) + crypto_akcipher_reqsize(tfm), gfp);
+ if (likely(req))
+ akcipher_request_set_tfm(req, tfm);
+
+ return req;
+}
+
+/**
+ * akcipher_request_free() - zeroize and free public key request
+ *
+ * @req: request to free
+ */
+static inline void akcipher_request_free(struct akcipher_request *req)
+{
+ kfree_sensitive(req);
+}
+
+/**
+ * akcipher_request_set_callback() - Sets an asynchronous callback.
+ *
+ * Callback will be called when an asynchronous operation on a given
+ * request is finished.
+ *
+ * @req: request that the callback will be set for
+ * @flgs: specify for instance if the operation may backlog
+ * @cmpl: callback which will be called
+ * @data: private data used by the caller
+ */
+static inline void akcipher_request_set_callback(struct akcipher_request *req,
+ u32 flgs,
+ crypto_completion_t cmpl,
+ void *data)
+{
+ req->base.complete = cmpl;
+ req->base.data = data;
+ req->base.flags = flgs;
+}
+
+/**
+ * akcipher_request_set_crypt() - Sets request parameters
+ *
+ * Sets parameters required by crypto operation
+ *
+ * @req: public key request
+ * @src: ptr to input scatter list
+ * @dst: ptr to output scatter list
+ * @src_len: size of the src input scatter list to be processed
+ * @dst_len: size of the dst output scatter list
+ */
+static inline void akcipher_request_set_crypt(struct akcipher_request *req,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ unsigned int src_len,
+ unsigned int dst_len)
+{
+ req->src = src;
+ req->dst = dst;
+ req->src_len = src_len;
+ req->dst_len = dst_len;
+}
+
+/**
+ * crypto_akcipher_maxsize() - Get len for output buffer
+ *
+ * Function returns the dest buffer size required for a given key.
+ * Function assumes that the key is already set in the transformation. If this
+ * function is called without a setkey or with a failed setkey, you will end up
+ * in a NULL dereference.
+ *
+ * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
+ */
+static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm)
+{
+ struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+
+ return alg->max_size(tfm);
+}
+
+/**
+ * crypto_akcipher_encrypt() - Invoke public key encrypt operation
+ *
+ * Function invokes the specific public key encrypt operation for a given
+ * public key algorithm
+ *
+ * @req: asymmetric key request
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_akcipher_encrypt(struct akcipher_request *req)
+{
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+
+ return crypto_akcipher_alg(tfm)->encrypt(req);
+}
+
+/**
+ * crypto_akcipher_decrypt() - Invoke public key decrypt operation
+ *
+ * Function invokes the specific public key decrypt operation for a given
+ * public key algorithm
+ *
+ * @req: asymmetric key request
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_akcipher_decrypt(struct akcipher_request *req)
+{
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+
+ return crypto_akcipher_alg(tfm)->decrypt(req);
+}
+
+/**
+ * crypto_akcipher_sync_encrypt() - Invoke public key encrypt operation
+ *
+ * Function invokes the specific public key encrypt operation for a given
+ * public key algorithm
+ *
+ * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
+ * @src: source buffer
+ * @slen: source length
+ * @dst: destination obuffer
+ * @dlen: destination length
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_akcipher_sync_encrypt(struct crypto_akcipher *tfm,
+ const void *src, unsigned int slen,
+ void *dst, unsigned int dlen);
+
+/**
+ * crypto_akcipher_sync_decrypt() - Invoke public key decrypt operation
+ *
+ * Function invokes the specific public key decrypt operation for a given
+ * public key algorithm
+ *
+ * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
+ * @src: source buffer
+ * @slen: source length
+ * @dst: destination obuffer
+ * @dlen: destination length
+ *
+ * Return: Output length on success; error code in case of error
+ */
+int crypto_akcipher_sync_decrypt(struct crypto_akcipher *tfm,
+ const void *src, unsigned int slen,
+ void *dst, unsigned int dlen);
+
+/**
+ * crypto_akcipher_set_pub_key() - Invoke set public key operation
+ *
+ * Function invokes the algorithm specific set key function, which knows
+ * how to decode and interpret the encoded key and parameters
+ *
+ * @tfm: tfm handle
+ * @key: BER encoded public key, algo OID, paramlen, BER encoded
+ * parameters
+ * @keylen: length of the key (not including other data)
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_akcipher_set_pub_key(struct crypto_akcipher *tfm,
+ const void *key,
+ unsigned int keylen)
+{
+ struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+
+ return alg->set_pub_key(tfm, key, keylen);
+}
+
+/**
+ * crypto_akcipher_set_priv_key() - Invoke set private key operation
+ *
+ * Function invokes the algorithm specific set key function, which knows
+ * how to decode and interpret the encoded key and parameters
+ *
+ * @tfm: tfm handle
+ * @key: BER encoded private key, algo OID, paramlen, BER encoded
+ * parameters
+ * @keylen: length of the key (not including other data)
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_akcipher_set_priv_key(struct crypto_akcipher *tfm,
+ const void *key,
+ unsigned int keylen)
+{
+ struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+
+ return alg->set_priv_key(tfm, key, keylen);
+}
+#endif
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
new file mode 100644
index 000000000..05deea9da
--- /dev/null
+++ b/include/crypto/algapi.h
@@ -0,0 +1,288 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cryptographic API for algorithms (i.e., low-level API).
+ *
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_ALGAPI_H
+#define _CRYPTO_ALGAPI_H
+
+#include <crypto/utils.h>
+#include <linux/align.h>
+#include <linux/cache.h>
+#include <linux/crypto.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+/*
+ * Maximum values for blocksize and alignmask, used to allocate
+ * static buffers that are big enough for any combination of
+ * algs and architectures. Ciphers have a lower maximum size.
+ */
+#define MAX_ALGAPI_BLOCKSIZE 160
+#define MAX_ALGAPI_ALIGNMASK 127
+#define MAX_CIPHER_BLOCKSIZE 16
+#define MAX_CIPHER_ALIGNMASK 15
+
+#ifdef ARCH_DMA_MINALIGN
+#define CRYPTO_DMA_ALIGN ARCH_DMA_MINALIGN
+#else
+#define CRYPTO_DMA_ALIGN CRYPTO_MINALIGN
+#endif
+
+#define CRYPTO_DMA_PADDING ((CRYPTO_DMA_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
+
+/*
+ * Autoloaded crypto modules should only use a prefixed name to avoid allowing
+ * arbitrary modules to be loaded. Loading from userspace may still need the
+ * unprefixed names, so retains those aliases as well.
+ * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
+ * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
+ * expands twice on the same line. Instead, use a separate base name for the
+ * alias.
+ */
+#define MODULE_ALIAS_CRYPTO(name) \
+ MODULE_INFO(alias, name); \
+ MODULE_INFO(alias, "crypto-" name)
+
+struct crypto_aead;
+struct crypto_instance;
+struct module;
+struct notifier_block;
+struct rtattr;
+struct scatterlist;
+struct seq_file;
+struct sk_buff;
+union crypto_no_such_thing;
+
+struct crypto_instance {
+ struct crypto_alg alg;
+
+ struct crypto_template *tmpl;
+
+ union {
+ /* Node in list of instances after registration. */
+ struct hlist_node list;
+ /* List of attached spawns before registration. */
+ struct crypto_spawn *spawns;
+ };
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+struct crypto_template {
+ struct list_head list;
+ struct hlist_head instances;
+ struct hlist_head dead;
+ struct module *module;
+
+ struct work_struct free_work;
+
+ int (*create)(struct crypto_template *tmpl, struct rtattr **tb);
+
+ char name[CRYPTO_MAX_ALG_NAME];
+};
+
+struct crypto_spawn {
+ struct list_head list;
+ struct crypto_alg *alg;
+ union {
+ /* Back pointer to instance after registration.*/
+ struct crypto_instance *inst;
+ /* Spawn list pointer prior to registration. */
+ struct crypto_spawn *next;
+ };
+ const struct crypto_type *frontend;
+ u32 mask;
+ bool dead;
+ bool registered;
+};
+
+struct crypto_queue {
+ struct list_head list;
+ struct list_head *backlog;
+
+ unsigned int qlen;
+ unsigned int max_qlen;
+};
+
+struct scatter_walk {
+ /* Must be the first member, see struct skcipher_walk. */
+ union {
+ void *const addr;
+
+ /* Private API field, do not touch. */
+ union crypto_no_such_thing *__addr;
+ };
+ struct scatterlist *sg;
+ unsigned int offset;
+};
+
+struct crypto_attr_alg {
+ char name[CRYPTO_MAX_ALG_NAME];
+};
+
+struct crypto_attr_type {
+ u32 type;
+ u32 mask;
+};
+
+/*
+ * Algorithm registration interface.
+ */
+int crypto_register_alg(struct crypto_alg *alg);
+void crypto_unregister_alg(struct crypto_alg *alg);
+int crypto_register_algs(struct crypto_alg *algs, int count);
+void crypto_unregister_algs(struct crypto_alg *algs, int count);
+
+void crypto_mod_put(struct crypto_alg *alg);
+
+int crypto_register_template(struct crypto_template *tmpl);
+int crypto_register_templates(struct crypto_template *tmpls, int count);
+void crypto_unregister_template(struct crypto_template *tmpl);
+void crypto_unregister_templates(struct crypto_template *tmpls, int count);
+struct crypto_template *crypto_lookup_template(const char *name);
+
+int crypto_register_instance(struct crypto_template *tmpl,
+ struct crypto_instance *inst);
+void crypto_unregister_instance(struct crypto_instance *inst);
+
+int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+void crypto_drop_spawn(struct crypto_spawn *spawn);
+struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
+ u32 mask);
+void *crypto_spawn_tfm2(struct crypto_spawn *spawn);
+
+struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
+int crypto_check_attr_type(struct rtattr **tb, u32 type, u32 *mask_ret);
+const char *crypto_attr_alg_name(struct rtattr *rta);
+int __crypto_inst_setname(struct crypto_instance *inst, const char *name,
+ const char *driver, struct crypto_alg *alg);
+
+#define crypto_inst_setname(inst, name, ...) \
+ CONCATENATE(crypto_inst_setname_, COUNT_ARGS(__VA_ARGS__))( \
+ inst, name, ##__VA_ARGS__)
+#define crypto_inst_setname_1(inst, name, alg) \
+ __crypto_inst_setname(inst, name, name, alg)
+#define crypto_inst_setname_2(inst, name, driver, alg) \
+ __crypto_inst_setname(inst, name, driver, alg)
+
+void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen);
+int crypto_enqueue_request(struct crypto_queue *queue,
+ struct crypto_async_request *request);
+void crypto_enqueue_request_head(struct crypto_queue *queue,
+ struct crypto_async_request *request);
+struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue);
+static inline unsigned int crypto_queue_len(struct crypto_queue *queue)
+{
+ return queue->qlen;
+}
+
+void crypto_inc(u8 *a, unsigned int size);
+
+static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_ctx;
+}
+
+static inline void *crypto_tfm_ctx_align(struct crypto_tfm *tfm,
+ unsigned int align)
+{
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(crypto_tfm_ctx(tfm), align);
+}
+
+static inline unsigned int crypto_dma_align(void)
+{
+ return CRYPTO_DMA_ALIGN;
+}
+
+static inline unsigned int crypto_dma_padding(void)
+{
+ return (crypto_dma_align() - 1) & ~(crypto_tfm_ctx_alignment() - 1);
+}
+
+static inline void *crypto_tfm_ctx_dma(struct crypto_tfm *tfm)
+{
+ return crypto_tfm_ctx_align(tfm, crypto_dma_align());
+}
+
+static inline struct crypto_instance *crypto_tfm_alg_instance(
+ struct crypto_tfm *tfm)
+{
+ return container_of(tfm->__crt_alg, struct crypto_instance, alg);
+}
+
+static inline void *crypto_instance_ctx(struct crypto_instance *inst)
+{
+ return inst->__ctx;
+}
+
+static inline struct crypto_async_request *crypto_get_backlog(
+ struct crypto_queue *queue)
+{
+ return queue->backlog == &queue->list ? NULL :
+ container_of(queue->backlog, struct crypto_async_request, list);
+}
+
+static inline u32 crypto_requires_off(struct crypto_attr_type *algt, u32 off)
+{
+ return (algt->type ^ off) & algt->mask & off;
+}
+
+/*
+ * When an algorithm uses another algorithm (e.g., if it's an instance of a
+ * template), these are the flags that should always be set on the "outer"
+ * algorithm if any "inner" algorithm has them set.
+ */
+#define CRYPTO_ALG_INHERITED_FLAGS \
+ (CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK | \
+ CRYPTO_ALG_ALLOCATES_MEMORY)
+
+/*
+ * Given the type and mask that specify the flags restrictions on a template
+ * instance being created, return the mask that should be passed to
+ * crypto_grab_*() (along with type=0) to honor any request the user made to
+ * have any of the CRYPTO_ALG_INHERITED_FLAGS clear.
+ */
+static inline u32 crypto_algt_inherited_mask(struct crypto_attr_type *algt)
+{
+ return crypto_requires_off(algt, CRYPTO_ALG_INHERITED_FLAGS);
+}
+
+int crypto_register_notifier(struct notifier_block *nb);
+int crypto_unregister_notifier(struct notifier_block *nb);
+
+/* Crypto notification events. */
+enum {
+ CRYPTO_MSG_ALG_REQUEST,
+ CRYPTO_MSG_ALG_REGISTER,
+ CRYPTO_MSG_ALG_LOADED,
+};
+
+static inline void crypto_request_complete(struct crypto_async_request *req,
+ int err)
+{
+ req->complete(req->data, err);
+}
+
+static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
+}
+
+static inline bool crypto_tfm_req_virt(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_alg->cra_flags & CRYPTO_ALG_REQ_VIRT;
+}
+
+static inline u32 crypto_request_flags(struct crypto_async_request *req)
+{
+ return req->flags & ~CRYPTO_TFM_REQ_ON_STACK;
+}
+
+#endif /* _CRYPTO_ALGAPI_H */
diff --git a/include/crypto/arc4.h b/include/crypto/arc4.h
new file mode 100644
index 000000000..f3c22fe01
--- /dev/null
+++ b/include/crypto/arc4.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Common values for ARC4 Cipher Algorithm
+ */
+
+#ifndef _CRYPTO_ARC4_H
+#define _CRYPTO_ARC4_H
+
+#include <linux/types.h>
+
+#define ARC4_MIN_KEY_SIZE 1
+#define ARC4_MAX_KEY_SIZE 256
+#define ARC4_BLOCK_SIZE 1
+
+struct arc4_ctx {
+ u32 S[256];
+ u32 x, y;
+};
+
+int arc4_setkey(struct arc4_ctx *ctx, const u8 *in_key, unsigned int key_len);
+void arc4_crypt(struct arc4_ctx *ctx, u8 *out, const u8 *in, unsigned int len);
+
+#endif /* _CRYPTO_ARC4_H */
diff --git a/include/crypto/aria.h b/include/crypto/aria.h
new file mode 100644
index 000000000..73295146b
--- /dev/null
+++ b/include/crypto/aria.h
@@ -0,0 +1,458 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cryptographic API.
+ *
+ * ARIA Cipher Algorithm.
+ *
+ * Documentation of ARIA can be found in RFC 5794.
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ *
+ * Information for ARIA
+ * http://210.104.33.10/ARIA/index-e.html (English)
+ * http://seed.kisa.or.kr/ (Korean)
+ *
+ * Public domain version is distributed above.
+ */
+
+#ifndef _CRYPTO_ARIA_H
+#define _CRYPTO_ARIA_H
+
+#include <crypto/algapi.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/byteorder.h>
+
+#define ARIA_MIN_KEY_SIZE 16
+#define ARIA_MAX_KEY_SIZE 32
+#define ARIA_BLOCK_SIZE 16
+#define ARIA_MAX_RD_KEYS 17
+#define ARIA_RD_KEY_WORDS (ARIA_BLOCK_SIZE / sizeof(u32))
+
+struct aria_ctx {
+ u32 enc_key[ARIA_MAX_RD_KEYS][ARIA_RD_KEY_WORDS];
+ u32 dec_key[ARIA_MAX_RD_KEYS][ARIA_RD_KEY_WORDS];
+ int rounds;
+ int key_length;
+};
+
+static const u32 s1[256] = {
+ 0x00636363, 0x007c7c7c, 0x00777777, 0x007b7b7b,
+ 0x00f2f2f2, 0x006b6b6b, 0x006f6f6f, 0x00c5c5c5,
+ 0x00303030, 0x00010101, 0x00676767, 0x002b2b2b,
+ 0x00fefefe, 0x00d7d7d7, 0x00ababab, 0x00767676,
+ 0x00cacaca, 0x00828282, 0x00c9c9c9, 0x007d7d7d,
+ 0x00fafafa, 0x00595959, 0x00474747, 0x00f0f0f0,
+ 0x00adadad, 0x00d4d4d4, 0x00a2a2a2, 0x00afafaf,
+ 0x009c9c9c, 0x00a4a4a4, 0x00727272, 0x00c0c0c0,
+ 0x00b7b7b7, 0x00fdfdfd, 0x00939393, 0x00262626,
+ 0x00363636, 0x003f3f3f, 0x00f7f7f7, 0x00cccccc,
+ 0x00343434, 0x00a5a5a5, 0x00e5e5e5, 0x00f1f1f1,
+ 0x00717171, 0x00d8d8d8, 0x00313131, 0x00151515,
+ 0x00040404, 0x00c7c7c7, 0x00232323, 0x00c3c3c3,
+ 0x00181818, 0x00969696, 0x00050505, 0x009a9a9a,
+ 0x00070707, 0x00121212, 0x00808080, 0x00e2e2e2,
+ 0x00ebebeb, 0x00272727, 0x00b2b2b2, 0x00757575,
+ 0x00090909, 0x00838383, 0x002c2c2c, 0x001a1a1a,
+ 0x001b1b1b, 0x006e6e6e, 0x005a5a5a, 0x00a0a0a0,
+ 0x00525252, 0x003b3b3b, 0x00d6d6d6, 0x00b3b3b3,
+ 0x00292929, 0x00e3e3e3, 0x002f2f2f, 0x00848484,
+ 0x00535353, 0x00d1d1d1, 0x00000000, 0x00ededed,
+ 0x00202020, 0x00fcfcfc, 0x00b1b1b1, 0x005b5b5b,
+ 0x006a6a6a, 0x00cbcbcb, 0x00bebebe, 0x00393939,
+ 0x004a4a4a, 0x004c4c4c, 0x00585858, 0x00cfcfcf,
+ 0x00d0d0d0, 0x00efefef, 0x00aaaaaa, 0x00fbfbfb,
+ 0x00434343, 0x004d4d4d, 0x00333333, 0x00858585,
+ 0x00454545, 0x00f9f9f9, 0x00020202, 0x007f7f7f,
+ 0x00505050, 0x003c3c3c, 0x009f9f9f, 0x00a8a8a8,
+ 0x00515151, 0x00a3a3a3, 0x00404040, 0x008f8f8f,
+ 0x00929292, 0x009d9d9d, 0x00383838, 0x00f5f5f5,
+ 0x00bcbcbc, 0x00b6b6b6, 0x00dadada, 0x00212121,
+ 0x00101010, 0x00ffffff, 0x00f3f3f3, 0x00d2d2d2,
+ 0x00cdcdcd, 0x000c0c0c, 0x00131313, 0x00ececec,
+ 0x005f5f5f, 0x00979797, 0x00444444, 0x00171717,
+ 0x00c4c4c4, 0x00a7a7a7, 0x007e7e7e, 0x003d3d3d,
+ 0x00646464, 0x005d5d5d, 0x00191919, 0x00737373,
+ 0x00606060, 0x00818181, 0x004f4f4f, 0x00dcdcdc,
+ 0x00222222, 0x002a2a2a, 0x00909090, 0x00888888,
+ 0x00464646, 0x00eeeeee, 0x00b8b8b8, 0x00141414,
+ 0x00dedede, 0x005e5e5e, 0x000b0b0b, 0x00dbdbdb,
+ 0x00e0e0e0, 0x00323232, 0x003a3a3a, 0x000a0a0a,
+ 0x00494949, 0x00060606, 0x00242424, 0x005c5c5c,
+ 0x00c2c2c2, 0x00d3d3d3, 0x00acacac, 0x00626262,
+ 0x00919191, 0x00959595, 0x00e4e4e4, 0x00797979,
+ 0x00e7e7e7, 0x00c8c8c8, 0x00373737, 0x006d6d6d,
+ 0x008d8d8d, 0x00d5d5d5, 0x004e4e4e, 0x00a9a9a9,
+ 0x006c6c6c, 0x00565656, 0x00f4f4f4, 0x00eaeaea,
+ 0x00656565, 0x007a7a7a, 0x00aeaeae, 0x00080808,
+ 0x00bababa, 0x00787878, 0x00252525, 0x002e2e2e,
+ 0x001c1c1c, 0x00a6a6a6, 0x00b4b4b4, 0x00c6c6c6,
+ 0x00e8e8e8, 0x00dddddd, 0x00747474, 0x001f1f1f,
+ 0x004b4b4b, 0x00bdbdbd, 0x008b8b8b, 0x008a8a8a,
+ 0x00707070, 0x003e3e3e, 0x00b5b5b5, 0x00666666,
+ 0x00484848, 0x00030303, 0x00f6f6f6, 0x000e0e0e,
+ 0x00616161, 0x00353535, 0x00575757, 0x00b9b9b9,
+ 0x00868686, 0x00c1c1c1, 0x001d1d1d, 0x009e9e9e,
+ 0x00e1e1e1, 0x00f8f8f8, 0x00989898, 0x00111111,
+ 0x00696969, 0x00d9d9d9, 0x008e8e8e, 0x00949494,
+ 0x009b9b9b, 0x001e1e1e, 0x00878787, 0x00e9e9e9,
+ 0x00cecece, 0x00555555, 0x00282828, 0x00dfdfdf,
+ 0x008c8c8c, 0x00a1a1a1, 0x00898989, 0x000d0d0d,
+ 0x00bfbfbf, 0x00e6e6e6, 0x00424242, 0x00686868,
+ 0x00414141, 0x00999999, 0x002d2d2d, 0x000f0f0f,
+ 0x00b0b0b0, 0x00545454, 0x00bbbbbb, 0x00161616
+};
+
+static const u32 s2[256] = {
+ 0xe200e2e2, 0x4e004e4e, 0x54005454, 0xfc00fcfc,
+ 0x94009494, 0xc200c2c2, 0x4a004a4a, 0xcc00cccc,
+ 0x62006262, 0x0d000d0d, 0x6a006a6a, 0x46004646,
+ 0x3c003c3c, 0x4d004d4d, 0x8b008b8b, 0xd100d1d1,
+ 0x5e005e5e, 0xfa00fafa, 0x64006464, 0xcb00cbcb,
+ 0xb400b4b4, 0x97009797, 0xbe00bebe, 0x2b002b2b,
+ 0xbc00bcbc, 0x77007777, 0x2e002e2e, 0x03000303,
+ 0xd300d3d3, 0x19001919, 0x59005959, 0xc100c1c1,
+ 0x1d001d1d, 0x06000606, 0x41004141, 0x6b006b6b,
+ 0x55005555, 0xf000f0f0, 0x99009999, 0x69006969,
+ 0xea00eaea, 0x9c009c9c, 0x18001818, 0xae00aeae,
+ 0x63006363, 0xdf00dfdf, 0xe700e7e7, 0xbb00bbbb,
+ 0x00000000, 0x73007373, 0x66006666, 0xfb00fbfb,
+ 0x96009696, 0x4c004c4c, 0x85008585, 0xe400e4e4,
+ 0x3a003a3a, 0x09000909, 0x45004545, 0xaa00aaaa,
+ 0x0f000f0f, 0xee00eeee, 0x10001010, 0xeb00ebeb,
+ 0x2d002d2d, 0x7f007f7f, 0xf400f4f4, 0x29002929,
+ 0xac00acac, 0xcf00cfcf, 0xad00adad, 0x91009191,
+ 0x8d008d8d, 0x78007878, 0xc800c8c8, 0x95009595,
+ 0xf900f9f9, 0x2f002f2f, 0xce00cece, 0xcd00cdcd,
+ 0x08000808, 0x7a007a7a, 0x88008888, 0x38003838,
+ 0x5c005c5c, 0x83008383, 0x2a002a2a, 0x28002828,
+ 0x47004747, 0xdb00dbdb, 0xb800b8b8, 0xc700c7c7,
+ 0x93009393, 0xa400a4a4, 0x12001212, 0x53005353,
+ 0xff00ffff, 0x87008787, 0x0e000e0e, 0x31003131,
+ 0x36003636, 0x21002121, 0x58005858, 0x48004848,
+ 0x01000101, 0x8e008e8e, 0x37003737, 0x74007474,
+ 0x32003232, 0xca00caca, 0xe900e9e9, 0xb100b1b1,
+ 0xb700b7b7, 0xab00abab, 0x0c000c0c, 0xd700d7d7,
+ 0xc400c4c4, 0x56005656, 0x42004242, 0x26002626,
+ 0x07000707, 0x98009898, 0x60006060, 0xd900d9d9,
+ 0xb600b6b6, 0xb900b9b9, 0x11001111, 0x40004040,
+ 0xec00ecec, 0x20002020, 0x8c008c8c, 0xbd00bdbd,
+ 0xa000a0a0, 0xc900c9c9, 0x84008484, 0x04000404,
+ 0x49004949, 0x23002323, 0xf100f1f1, 0x4f004f4f,
+ 0x50005050, 0x1f001f1f, 0x13001313, 0xdc00dcdc,
+ 0xd800d8d8, 0xc000c0c0, 0x9e009e9e, 0x57005757,
+ 0xe300e3e3, 0xc300c3c3, 0x7b007b7b, 0x65006565,
+ 0x3b003b3b, 0x02000202, 0x8f008f8f, 0x3e003e3e,
+ 0xe800e8e8, 0x25002525, 0x92009292, 0xe500e5e5,
+ 0x15001515, 0xdd00dddd, 0xfd00fdfd, 0x17001717,
+ 0xa900a9a9, 0xbf00bfbf, 0xd400d4d4, 0x9a009a9a,
+ 0x7e007e7e, 0xc500c5c5, 0x39003939, 0x67006767,
+ 0xfe00fefe, 0x76007676, 0x9d009d9d, 0x43004343,
+ 0xa700a7a7, 0xe100e1e1, 0xd000d0d0, 0xf500f5f5,
+ 0x68006868, 0xf200f2f2, 0x1b001b1b, 0x34003434,
+ 0x70007070, 0x05000505, 0xa300a3a3, 0x8a008a8a,
+ 0xd500d5d5, 0x79007979, 0x86008686, 0xa800a8a8,
+ 0x30003030, 0xc600c6c6, 0x51005151, 0x4b004b4b,
+ 0x1e001e1e, 0xa600a6a6, 0x27002727, 0xf600f6f6,
+ 0x35003535, 0xd200d2d2, 0x6e006e6e, 0x24002424,
+ 0x16001616, 0x82008282, 0x5f005f5f, 0xda00dada,
+ 0xe600e6e6, 0x75007575, 0xa200a2a2, 0xef00efef,
+ 0x2c002c2c, 0xb200b2b2, 0x1c001c1c, 0x9f009f9f,
+ 0x5d005d5d, 0x6f006f6f, 0x80008080, 0x0a000a0a,
+ 0x72007272, 0x44004444, 0x9b009b9b, 0x6c006c6c,
+ 0x90009090, 0x0b000b0b, 0x5b005b5b, 0x33003333,
+ 0x7d007d7d, 0x5a005a5a, 0x52005252, 0xf300f3f3,
+ 0x61006161, 0xa100a1a1, 0xf700f7f7, 0xb000b0b0,
+ 0xd600d6d6, 0x3f003f3f, 0x7c007c7c, 0x6d006d6d,
+ 0xed00eded, 0x14001414, 0xe000e0e0, 0xa500a5a5,
+ 0x3d003d3d, 0x22002222, 0xb300b3b3, 0xf800f8f8,
+ 0x89008989, 0xde00dede, 0x71007171, 0x1a001a1a,
+ 0xaf00afaf, 0xba00baba, 0xb500b5b5, 0x81008181
+};
+
+static const u32 x1[256] = {
+ 0x52520052, 0x09090009, 0x6a6a006a, 0xd5d500d5,
+ 0x30300030, 0x36360036, 0xa5a500a5, 0x38380038,
+ 0xbfbf00bf, 0x40400040, 0xa3a300a3, 0x9e9e009e,
+ 0x81810081, 0xf3f300f3, 0xd7d700d7, 0xfbfb00fb,
+ 0x7c7c007c, 0xe3e300e3, 0x39390039, 0x82820082,
+ 0x9b9b009b, 0x2f2f002f, 0xffff00ff, 0x87870087,
+ 0x34340034, 0x8e8e008e, 0x43430043, 0x44440044,
+ 0xc4c400c4, 0xdede00de, 0xe9e900e9, 0xcbcb00cb,
+ 0x54540054, 0x7b7b007b, 0x94940094, 0x32320032,
+ 0xa6a600a6, 0xc2c200c2, 0x23230023, 0x3d3d003d,
+ 0xeeee00ee, 0x4c4c004c, 0x95950095, 0x0b0b000b,
+ 0x42420042, 0xfafa00fa, 0xc3c300c3, 0x4e4e004e,
+ 0x08080008, 0x2e2e002e, 0xa1a100a1, 0x66660066,
+ 0x28280028, 0xd9d900d9, 0x24240024, 0xb2b200b2,
+ 0x76760076, 0x5b5b005b, 0xa2a200a2, 0x49490049,
+ 0x6d6d006d, 0x8b8b008b, 0xd1d100d1, 0x25250025,
+ 0x72720072, 0xf8f800f8, 0xf6f600f6, 0x64640064,
+ 0x86860086, 0x68680068, 0x98980098, 0x16160016,
+ 0xd4d400d4, 0xa4a400a4, 0x5c5c005c, 0xcccc00cc,
+ 0x5d5d005d, 0x65650065, 0xb6b600b6, 0x92920092,
+ 0x6c6c006c, 0x70700070, 0x48480048, 0x50500050,
+ 0xfdfd00fd, 0xeded00ed, 0xb9b900b9, 0xdada00da,
+ 0x5e5e005e, 0x15150015, 0x46460046, 0x57570057,
+ 0xa7a700a7, 0x8d8d008d, 0x9d9d009d, 0x84840084,
+ 0x90900090, 0xd8d800d8, 0xabab00ab, 0x00000000,
+ 0x8c8c008c, 0xbcbc00bc, 0xd3d300d3, 0x0a0a000a,
+ 0xf7f700f7, 0xe4e400e4, 0x58580058, 0x05050005,
+ 0xb8b800b8, 0xb3b300b3, 0x45450045, 0x06060006,
+ 0xd0d000d0, 0x2c2c002c, 0x1e1e001e, 0x8f8f008f,
+ 0xcaca00ca, 0x3f3f003f, 0x0f0f000f, 0x02020002,
+ 0xc1c100c1, 0xafaf00af, 0xbdbd00bd, 0x03030003,
+ 0x01010001, 0x13130013, 0x8a8a008a, 0x6b6b006b,
+ 0x3a3a003a, 0x91910091, 0x11110011, 0x41410041,
+ 0x4f4f004f, 0x67670067, 0xdcdc00dc, 0xeaea00ea,
+ 0x97970097, 0xf2f200f2, 0xcfcf00cf, 0xcece00ce,
+ 0xf0f000f0, 0xb4b400b4, 0xe6e600e6, 0x73730073,
+ 0x96960096, 0xacac00ac, 0x74740074, 0x22220022,
+ 0xe7e700e7, 0xadad00ad, 0x35350035, 0x85850085,
+ 0xe2e200e2, 0xf9f900f9, 0x37370037, 0xe8e800e8,
+ 0x1c1c001c, 0x75750075, 0xdfdf00df, 0x6e6e006e,
+ 0x47470047, 0xf1f100f1, 0x1a1a001a, 0x71710071,
+ 0x1d1d001d, 0x29290029, 0xc5c500c5, 0x89890089,
+ 0x6f6f006f, 0xb7b700b7, 0x62620062, 0x0e0e000e,
+ 0xaaaa00aa, 0x18180018, 0xbebe00be, 0x1b1b001b,
+ 0xfcfc00fc, 0x56560056, 0x3e3e003e, 0x4b4b004b,
+ 0xc6c600c6, 0xd2d200d2, 0x79790079, 0x20200020,
+ 0x9a9a009a, 0xdbdb00db, 0xc0c000c0, 0xfefe00fe,
+ 0x78780078, 0xcdcd00cd, 0x5a5a005a, 0xf4f400f4,
+ 0x1f1f001f, 0xdddd00dd, 0xa8a800a8, 0x33330033,
+ 0x88880088, 0x07070007, 0xc7c700c7, 0x31310031,
+ 0xb1b100b1, 0x12120012, 0x10100010, 0x59590059,
+ 0x27270027, 0x80800080, 0xecec00ec, 0x5f5f005f,
+ 0x60600060, 0x51510051, 0x7f7f007f, 0xa9a900a9,
+ 0x19190019, 0xb5b500b5, 0x4a4a004a, 0x0d0d000d,
+ 0x2d2d002d, 0xe5e500e5, 0x7a7a007a, 0x9f9f009f,
+ 0x93930093, 0xc9c900c9, 0x9c9c009c, 0xefef00ef,
+ 0xa0a000a0, 0xe0e000e0, 0x3b3b003b, 0x4d4d004d,
+ 0xaeae00ae, 0x2a2a002a, 0xf5f500f5, 0xb0b000b0,
+ 0xc8c800c8, 0xebeb00eb, 0xbbbb00bb, 0x3c3c003c,
+ 0x83830083, 0x53530053, 0x99990099, 0x61610061,
+ 0x17170017, 0x2b2b002b, 0x04040004, 0x7e7e007e,
+ 0xbaba00ba, 0x77770077, 0xd6d600d6, 0x26260026,
+ 0xe1e100e1, 0x69690069, 0x14140014, 0x63630063,
+ 0x55550055, 0x21210021, 0x0c0c000c, 0x7d7d007d
+};
+
+static const u32 x2[256] = {
+ 0x30303000, 0x68686800, 0x99999900, 0x1b1b1b00,
+ 0x87878700, 0xb9b9b900, 0x21212100, 0x78787800,
+ 0x50505000, 0x39393900, 0xdbdbdb00, 0xe1e1e100,
+ 0x72727200, 0x09090900, 0x62626200, 0x3c3c3c00,
+ 0x3e3e3e00, 0x7e7e7e00, 0x5e5e5e00, 0x8e8e8e00,
+ 0xf1f1f100, 0xa0a0a000, 0xcccccc00, 0xa3a3a300,
+ 0x2a2a2a00, 0x1d1d1d00, 0xfbfbfb00, 0xb6b6b600,
+ 0xd6d6d600, 0x20202000, 0xc4c4c400, 0x8d8d8d00,
+ 0x81818100, 0x65656500, 0xf5f5f500, 0x89898900,
+ 0xcbcbcb00, 0x9d9d9d00, 0x77777700, 0xc6c6c600,
+ 0x57575700, 0x43434300, 0x56565600, 0x17171700,
+ 0xd4d4d400, 0x40404000, 0x1a1a1a00, 0x4d4d4d00,
+ 0xc0c0c000, 0x63636300, 0x6c6c6c00, 0xe3e3e300,
+ 0xb7b7b700, 0xc8c8c800, 0x64646400, 0x6a6a6a00,
+ 0x53535300, 0xaaaaaa00, 0x38383800, 0x98989800,
+ 0x0c0c0c00, 0xf4f4f400, 0x9b9b9b00, 0xededed00,
+ 0x7f7f7f00, 0x22222200, 0x76767600, 0xafafaf00,
+ 0xdddddd00, 0x3a3a3a00, 0x0b0b0b00, 0x58585800,
+ 0x67676700, 0x88888800, 0x06060600, 0xc3c3c300,
+ 0x35353500, 0x0d0d0d00, 0x01010100, 0x8b8b8b00,
+ 0x8c8c8c00, 0xc2c2c200, 0xe6e6e600, 0x5f5f5f00,
+ 0x02020200, 0x24242400, 0x75757500, 0x93939300,
+ 0x66666600, 0x1e1e1e00, 0xe5e5e500, 0xe2e2e200,
+ 0x54545400, 0xd8d8d800, 0x10101000, 0xcecece00,
+ 0x7a7a7a00, 0xe8e8e800, 0x08080800, 0x2c2c2c00,
+ 0x12121200, 0x97979700, 0x32323200, 0xababab00,
+ 0xb4b4b400, 0x27272700, 0x0a0a0a00, 0x23232300,
+ 0xdfdfdf00, 0xefefef00, 0xcacaca00, 0xd9d9d900,
+ 0xb8b8b800, 0xfafafa00, 0xdcdcdc00, 0x31313100,
+ 0x6b6b6b00, 0xd1d1d100, 0xadadad00, 0x19191900,
+ 0x49494900, 0xbdbdbd00, 0x51515100, 0x96969600,
+ 0xeeeeee00, 0xe4e4e400, 0xa8a8a800, 0x41414100,
+ 0xdadada00, 0xffffff00, 0xcdcdcd00, 0x55555500,
+ 0x86868600, 0x36363600, 0xbebebe00, 0x61616100,
+ 0x52525200, 0xf8f8f800, 0xbbbbbb00, 0x0e0e0e00,
+ 0x82828200, 0x48484800, 0x69696900, 0x9a9a9a00,
+ 0xe0e0e000, 0x47474700, 0x9e9e9e00, 0x5c5c5c00,
+ 0x04040400, 0x4b4b4b00, 0x34343400, 0x15151500,
+ 0x79797900, 0x26262600, 0xa7a7a700, 0xdedede00,
+ 0x29292900, 0xaeaeae00, 0x92929200, 0xd7d7d700,
+ 0x84848400, 0xe9e9e900, 0xd2d2d200, 0xbababa00,
+ 0x5d5d5d00, 0xf3f3f300, 0xc5c5c500, 0xb0b0b000,
+ 0xbfbfbf00, 0xa4a4a400, 0x3b3b3b00, 0x71717100,
+ 0x44444400, 0x46464600, 0x2b2b2b00, 0xfcfcfc00,
+ 0xebebeb00, 0x6f6f6f00, 0xd5d5d500, 0xf6f6f600,
+ 0x14141400, 0xfefefe00, 0x7c7c7c00, 0x70707000,
+ 0x5a5a5a00, 0x7d7d7d00, 0xfdfdfd00, 0x2f2f2f00,
+ 0x18181800, 0x83838300, 0x16161600, 0xa5a5a500,
+ 0x91919100, 0x1f1f1f00, 0x05050500, 0x95959500,
+ 0x74747400, 0xa9a9a900, 0xc1c1c100, 0x5b5b5b00,
+ 0x4a4a4a00, 0x85858500, 0x6d6d6d00, 0x13131300,
+ 0x07070700, 0x4f4f4f00, 0x4e4e4e00, 0x45454500,
+ 0xb2b2b200, 0x0f0f0f00, 0xc9c9c900, 0x1c1c1c00,
+ 0xa6a6a600, 0xbcbcbc00, 0xececec00, 0x73737300,
+ 0x90909000, 0x7b7b7b00, 0xcfcfcf00, 0x59595900,
+ 0x8f8f8f00, 0xa1a1a100, 0xf9f9f900, 0x2d2d2d00,
+ 0xf2f2f200, 0xb1b1b100, 0x00000000, 0x94949400,
+ 0x37373700, 0x9f9f9f00, 0xd0d0d000, 0x2e2e2e00,
+ 0x9c9c9c00, 0x6e6e6e00, 0x28282800, 0x3f3f3f00,
+ 0x80808000, 0xf0f0f000, 0x3d3d3d00, 0xd3d3d300,
+ 0x25252500, 0x8a8a8a00, 0xb5b5b500, 0xe7e7e700,
+ 0x42424200, 0xb3b3b300, 0xc7c7c700, 0xeaeaea00,
+ 0xf7f7f700, 0x4c4c4c00, 0x11111100, 0x33333300,
+ 0x03030300, 0xa2a2a200, 0xacacac00, 0x60606000
+};
+
+static inline u32 rotl32(u32 v, u32 r)
+{
+ return ((v << r) | (v >> (32 - r)));
+}
+
+static inline u32 rotr32(u32 v, u32 r)
+{
+ return ((v >> r) | (v << (32 - r)));
+}
+
+static inline u32 bswap32(u32 v)
+{
+ return ((v << 24) ^
+ (v >> 24) ^
+ ((v & 0x0000ff00) << 8) ^
+ ((v & 0x00ff0000) >> 8));
+}
+
+static inline u8 get_u8(u32 x, u32 y)
+{
+ return (x >> ((3 - y) * 8));
+}
+
+static inline u32 make_u32(u8 v0, u8 v1, u8 v2, u8 v3)
+{
+ return ((u32)v0 << 24) | ((u32)v1 << 16) | ((u32)v2 << 8) | ((u32)v3);
+}
+
+static inline u32 aria_m(u32 t0)
+{
+ return rotr32(t0, 8) ^ rotr32(t0 ^ rotr32(t0, 8), 16);
+}
+
+/* S-Box Layer 1 + M */
+static inline void aria_sbox_layer1_with_pre_diff(u32 *t0, u32 *t1, u32 *t2,
+ u32 *t3)
+{
+ *t0 = s1[get_u8(*t0, 0)] ^
+ s2[get_u8(*t0, 1)] ^
+ x1[get_u8(*t0, 2)] ^
+ x2[get_u8(*t0, 3)];
+ *t1 = s1[get_u8(*t1, 0)] ^
+ s2[get_u8(*t1, 1)] ^
+ x1[get_u8(*t1, 2)] ^
+ x2[get_u8(*t1, 3)];
+ *t2 = s1[get_u8(*t2, 0)] ^
+ s2[get_u8(*t2, 1)] ^
+ x1[get_u8(*t2, 2)] ^
+ x2[get_u8(*t2, 3)];
+ *t3 = s1[get_u8(*t3, 0)] ^
+ s2[get_u8(*t3, 1)] ^
+ x1[get_u8(*t3, 2)] ^
+ x2[get_u8(*t3, 3)];
+}
+
+/* S-Box Layer 2 + M */
+static inline void aria_sbox_layer2_with_pre_diff(u32 *t0, u32 *t1, u32 *t2,
+ u32 *t3)
+{
+ *t0 = x1[get_u8(*t0, 0)] ^
+ x2[get_u8(*t0, 1)] ^
+ s1[get_u8(*t0, 2)] ^
+ s2[get_u8(*t0, 3)];
+ *t1 = x1[get_u8(*t1, 0)] ^
+ x2[get_u8(*t1, 1)] ^
+ s1[get_u8(*t1, 2)] ^
+ s2[get_u8(*t1, 3)];
+ *t2 = x1[get_u8(*t2, 0)] ^
+ x2[get_u8(*t2, 1)] ^
+ s1[get_u8(*t2, 2)] ^
+ s2[get_u8(*t2, 3)];
+ *t3 = x1[get_u8(*t3, 0)] ^
+ x2[get_u8(*t3, 1)] ^
+ s1[get_u8(*t3, 2)] ^
+ s2[get_u8(*t3, 3)];
+}
+
+/* Word-level diffusion */
+static inline void aria_diff_word(u32 *t0, u32 *t1, u32 *t2, u32 *t3)
+{
+ *t1 ^= *t2;
+ *t2 ^= *t3;
+ *t0 ^= *t1;
+
+ *t3 ^= *t1;
+ *t2 ^= *t0;
+ *t1 ^= *t2;
+}
+
+/* Byte-level diffusion */
+static inline void aria_diff_byte(u32 *t1, u32 *t2, u32 *t3)
+{
+ *t1 = ((*t1 << 8) & 0xff00ff00) ^ ((*t1 >> 8) & 0x00ff00ff);
+ *t2 = rotr32(*t2, 16);
+ *t3 = bswap32(*t3);
+}
+
+/* Key XOR Layer */
+static inline void aria_add_round_key(u32 *rk, u32 *t0, u32 *t1, u32 *t2,
+ u32 *t3)
+{
+ *t0 ^= rk[0];
+ *t1 ^= rk[1];
+ *t2 ^= rk[2];
+ *t3 ^= rk[3];
+}
+/* Odd round Substitution & Diffusion */
+static inline void aria_subst_diff_odd(u32 *t0, u32 *t1, u32 *t2, u32 *t3)
+{
+ aria_sbox_layer1_with_pre_diff(t0, t1, t2, t3);
+ aria_diff_word(t0, t1, t2, t3);
+ aria_diff_byte(t1, t2, t3);
+ aria_diff_word(t0, t1, t2, t3);
+}
+
+/* Even round Substitution & Diffusion */
+static inline void aria_subst_diff_even(u32 *t0, u32 *t1, u32 *t2, u32 *t3)
+{
+ aria_sbox_layer2_with_pre_diff(t0, t1, t2, t3);
+ aria_diff_word(t0, t1, t2, t3);
+ aria_diff_byte(t3, t0, t1);
+ aria_diff_word(t0, t1, t2, t3);
+}
+
+/* Q, R Macro expanded ARIA GSRK */
+static inline void aria_gsrk(u32 *rk, u32 *x, u32 *y, u32 n)
+{
+ int q = 4 - (n / 32);
+ int r = n % 32;
+
+ rk[0] = (x[0]) ^
+ ((y[q % 4]) >> r) ^
+ ((y[(q + 3) % 4]) << (32 - r));
+ rk[1] = (x[1]) ^
+ ((y[(q + 1) % 4]) >> r) ^
+ ((y[q % 4]) << (32 - r));
+ rk[2] = (x[2]) ^
+ ((y[(q + 2) % 4]) >> r) ^
+ ((y[(q + 1) % 4]) << (32 - r));
+ rk[3] = (x[3]) ^
+ ((y[(q + 3) % 4]) >> r) ^
+ ((y[(q + 2) % 4]) << (32 - r));
+}
+
+void aria_encrypt(void *ctx, u8 *out, const u8 *in);
+void aria_decrypt(void *ctx, u8 *out, const u8 *in);
+int aria_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len);
+
+#endif
diff --git a/include/crypto/authenc.h b/include/crypto/authenc.h
new file mode 100644
index 000000000..15a9caa23
--- /dev/null
+++ b/include/crypto/authenc.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Authenc: Simple AEAD wrapper for IPsec
+ *
+ * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_AUTHENC_H
+#define _CRYPTO_AUTHENC_H
+
+#include <linux/types.h>
+
+enum {
+ CRYPTO_AUTHENC_KEYA_UNSPEC,
+ CRYPTO_AUTHENC_KEYA_PARAM,
+};
+
+struct crypto_authenc_key_param {
+ __be32 enckeylen;
+};
+
+struct crypto_authenc_keys {
+ const u8 *authkey;
+ const u8 *enckey;
+
+ unsigned int authkeylen;
+ unsigned int enckeylen;
+};
+
+int crypto_authenc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
+ unsigned int keylen);
+int crypto_krb5enc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
+ unsigned int keylen);
+
+#endif /* _CRYPTO_AUTHENC_H */
diff --git a/include/crypto/b128ops.h b/include/crypto/b128ops.h
new file mode 100644
index 000000000..f3b37cbb3
--- /dev/null
+++ b/include/crypto/b128ops.h
@@ -0,0 +1,72 @@
+/* b128ops.h - common 128-bit block operations
+ *
+ * Copyright (c) 2003, Dr Brian Gladman, Worcester, UK.
+ * Copyright (c) 2006, Rik Snel <rsnel@cube.dyndns.org>
+ *
+ * Based on Dr Brian Gladman's (GPL'd) work published at
+ * http://fp.gladman.plus.com/cryptography_technology/index.htm
+ * See the original copyright notice below.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved.
+
+ LICENSE TERMS
+
+ The free distribution and use of this software in both source and binary
+ form is allowed (with or without changes) provided that:
+
+ 1. distributions of this source code include the above copyright
+ notice, this list of conditions and the following disclaimer;
+
+ 2. distributions in binary form include the above copyright
+ notice, this list of conditions and the following disclaimer
+ in the documentation and/or other associated materials;
+
+ 3. the copyright holder's name is not used to endorse products
+ built using this software without specific written permission.
+
+ ALTERNATIVELY, provided that this notice is retained in full, this product
+ may be distributed under the terms of the GNU General Public License (GPL),
+ in which case the provisions of the GPL apply INSTEAD OF those given above.
+
+ DISCLAIMER
+
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ ---------------------------------------------------------------------------
+ Issue Date: 13/06/2006
+*/
+
+#ifndef _CRYPTO_B128OPS_H
+#define _CRYPTO_B128OPS_H
+
+#include <linux/types.h>
+
+typedef struct {
+ __be64 a, b;
+} be128;
+
+typedef struct {
+ __le64 b, a;
+} le128;
+
+static inline void be128_xor(be128 *r, const be128 *p, const be128 *q)
+{
+ r->a = p->a ^ q->a;
+ r->b = p->b ^ q->b;
+}
+
+static inline void le128_xor(le128 *r, const le128 *p, const le128 *q)
+{
+ r->a = p->a ^ q->a;
+ r->b = p->b ^ q->b;
+}
+
+#endif /* _CRYPTO_B128OPS_H */
diff --git a/include/crypto/blake2b.h b/include/crypto/blake2b.h
new file mode 100644
index 000000000..3bc37fd10
--- /dev/null
+++ b/include/crypto/blake2b.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+
+#ifndef _CRYPTO_BLAKE2B_H
+#define _CRYPTO_BLAKE2B_H
+
+#include <linux/bug.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+enum blake2b_lengths {
+ BLAKE2B_BLOCK_SIZE = 128,
+ BLAKE2B_HASH_SIZE = 64,
+ BLAKE2B_KEY_SIZE = 64,
+
+ BLAKE2B_160_HASH_SIZE = 20,
+ BLAKE2B_256_HASH_SIZE = 32,
+ BLAKE2B_384_HASH_SIZE = 48,
+ BLAKE2B_512_HASH_SIZE = 64,
+};
+
+/**
+ * struct blake2b_ctx - Context for hashing a message with BLAKE2b
+ * @h: compression function state
+ * @t: block counter
+ * @f: finalization indicator
+ * @buf: partial block buffer; 'buflen' bytes are valid
+ * @buflen: number of bytes buffered in @buf
+ * @outlen: length of output hash value in bytes, at most BLAKE2B_HASH_SIZE
+ */
+struct blake2b_ctx {
+ /* 'h', 't', and 'f' are used in assembly code, so keep them as-is. */
+ u64 h[8];
+ u64 t[2];
+ u64 f[2];
+ u8 buf[BLAKE2B_BLOCK_SIZE];
+ unsigned int buflen;
+ unsigned int outlen;
+};
+
+enum blake2b_iv {
+ BLAKE2B_IV0 = 0x6A09E667F3BCC908ULL,
+ BLAKE2B_IV1 = 0xBB67AE8584CAA73BULL,
+ BLAKE2B_IV2 = 0x3C6EF372FE94F82BULL,
+ BLAKE2B_IV3 = 0xA54FF53A5F1D36F1ULL,
+ BLAKE2B_IV4 = 0x510E527FADE682D1ULL,
+ BLAKE2B_IV5 = 0x9B05688C2B3E6C1FULL,
+ BLAKE2B_IV6 = 0x1F83D9ABFB41BD6BULL,
+ BLAKE2B_IV7 = 0x5BE0CD19137E2179ULL,
+};
+
+static inline void __blake2b_init(struct blake2b_ctx *ctx, size_t outlen,
+ const void *key, size_t keylen)
+{
+ ctx->h[0] = BLAKE2B_IV0 ^ (0x01010000 | keylen << 8 | outlen);
+ ctx->h[1] = BLAKE2B_IV1;
+ ctx->h[2] = BLAKE2B_IV2;
+ ctx->h[3] = BLAKE2B_IV3;
+ ctx->h[4] = BLAKE2B_IV4;
+ ctx->h[5] = BLAKE2B_IV5;
+ ctx->h[6] = BLAKE2B_IV6;
+ ctx->h[7] = BLAKE2B_IV7;
+ ctx->t[0] = 0;
+ ctx->t[1] = 0;
+ ctx->f[0] = 0;
+ ctx->f[1] = 0;
+ ctx->buflen = 0;
+ ctx->outlen = outlen;
+ if (keylen) {
+ memcpy(ctx->buf, key, keylen);
+ memset(&ctx->buf[keylen], 0, BLAKE2B_BLOCK_SIZE - keylen);
+ ctx->buflen = BLAKE2B_BLOCK_SIZE;
+ }
+}
+
+/**
+ * blake2b_init() - Initialize a BLAKE2b context for a new message (unkeyed)
+ * @ctx: the context to initialize
+ * @outlen: length of output hash value in bytes, at most BLAKE2B_HASH_SIZE
+ *
+ * Context: Any context.
+ */
+static inline void blake2b_init(struct blake2b_ctx *ctx, size_t outlen)
+{
+ __blake2b_init(ctx, outlen, NULL, 0);
+}
+
+/**
+ * blake2b_init_key() - Initialize a BLAKE2b context for a new message (keyed)
+ * @ctx: the context to initialize
+ * @outlen: length of output hash value in bytes, at most BLAKE2B_HASH_SIZE
+ * @key: the key
+ * @keylen: the key length in bytes, at most BLAKE2B_KEY_SIZE
+ *
+ * Context: Any context.
+ */
+static inline void blake2b_init_key(struct blake2b_ctx *ctx, size_t outlen,
+ const void *key, size_t keylen)
+{
+ WARN_ON(IS_ENABLED(DEBUG) && (!outlen || outlen > BLAKE2B_HASH_SIZE ||
+ !key || !keylen || keylen > BLAKE2B_KEY_SIZE));
+
+ __blake2b_init(ctx, outlen, key, keylen);
+}
+
+/**
+ * blake2b_update() - Update a BLAKE2b context with message data
+ * @ctx: the context to update; must have been initialized
+ * @in: the message data
+ * @inlen: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void blake2b_update(struct blake2b_ctx *ctx, const u8 *in, size_t inlen);
+
+/**
+ * blake2b_final() - Finish computing a BLAKE2b hash
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting BLAKE2b hash. Its length will be equal to the
+ * @outlen that was passed to blake2b_init() or blake2b_init_key().
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void blake2b_final(struct blake2b_ctx *ctx, u8 *out);
+
+/**
+ * blake2b() - Compute BLAKE2b hash in one shot
+ * @key: the key, or NULL for an unkeyed hash
+ * @keylen: the key length in bytes (at most BLAKE2B_KEY_SIZE), or 0 for an
+ * unkeyed hash
+ * @in: the message data
+ * @inlen: the data length in bytes
+ * @out: (output) the resulting BLAKE2b hash, with length @outlen
+ * @outlen: length of output hash value in bytes, at most BLAKE2B_HASH_SIZE
+ *
+ * Context: Any context.
+ */
+static inline void blake2b(const u8 *key, size_t keylen,
+ const u8 *in, size_t inlen,
+ u8 *out, size_t outlen)
+{
+ struct blake2b_ctx ctx;
+
+ WARN_ON(IS_ENABLED(DEBUG) && ((!in && inlen > 0) || !out || !outlen ||
+ outlen > BLAKE2B_HASH_SIZE || keylen > BLAKE2B_KEY_SIZE ||
+ (!key && keylen)));
+
+ __blake2b_init(&ctx, outlen, key, keylen);
+ blake2b_update(&ctx, in, inlen);
+ blake2b_final(&ctx, out);
+}
+
+#endif /* _CRYPTO_BLAKE2B_H */
diff --git a/include/crypto/blake2s.h b/include/crypto/blake2s.h
new file mode 100644
index 000000000..648cb7824
--- /dev/null
+++ b/include/crypto/blake2s.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef _CRYPTO_BLAKE2S_H
+#define _CRYPTO_BLAKE2S_H
+
+#include <linux/bug.h>
+#include <linux/kconfig.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+enum blake2s_lengths {
+ BLAKE2S_BLOCK_SIZE = 64,
+ BLAKE2S_HASH_SIZE = 32,
+ BLAKE2S_KEY_SIZE = 32,
+
+ BLAKE2S_128_HASH_SIZE = 16,
+ BLAKE2S_160_HASH_SIZE = 20,
+ BLAKE2S_224_HASH_SIZE = 28,
+ BLAKE2S_256_HASH_SIZE = 32,
+};
+
+/**
+ * struct blake2s_ctx - Context for hashing a message with BLAKE2s
+ * @h: compression function state
+ * @t: block counter
+ * @f: finalization indicator
+ * @buf: partial block buffer; 'buflen' bytes are valid
+ * @buflen: number of bytes buffered in @buf
+ * @outlen: length of output hash value in bytes, at most BLAKE2S_HASH_SIZE
+ */
+struct blake2s_ctx {
+ /* 'h', 't', and 'f' are used in assembly code, so keep them as-is. */
+ u32 h[8];
+ u32 t[2];
+ u32 f[2];
+ u8 buf[BLAKE2S_BLOCK_SIZE];
+ unsigned int buflen;
+ unsigned int outlen;
+};
+
+enum blake2s_iv {
+ BLAKE2S_IV0 = 0x6A09E667UL,
+ BLAKE2S_IV1 = 0xBB67AE85UL,
+ BLAKE2S_IV2 = 0x3C6EF372UL,
+ BLAKE2S_IV3 = 0xA54FF53AUL,
+ BLAKE2S_IV4 = 0x510E527FUL,
+ BLAKE2S_IV5 = 0x9B05688CUL,
+ BLAKE2S_IV6 = 0x1F83D9ABUL,
+ BLAKE2S_IV7 = 0x5BE0CD19UL,
+};
+
+static inline void __blake2s_init(struct blake2s_ctx *ctx, size_t outlen,
+ const void *key, size_t keylen)
+{
+ ctx->h[0] = BLAKE2S_IV0 ^ (0x01010000 | keylen << 8 | outlen);
+ ctx->h[1] = BLAKE2S_IV1;
+ ctx->h[2] = BLAKE2S_IV2;
+ ctx->h[3] = BLAKE2S_IV3;
+ ctx->h[4] = BLAKE2S_IV4;
+ ctx->h[5] = BLAKE2S_IV5;
+ ctx->h[6] = BLAKE2S_IV6;
+ ctx->h[7] = BLAKE2S_IV7;
+ ctx->t[0] = 0;
+ ctx->t[1] = 0;
+ ctx->f[0] = 0;
+ ctx->f[1] = 0;
+ ctx->buflen = 0;
+ ctx->outlen = outlen;
+ if (keylen) {
+ memcpy(ctx->buf, key, keylen);
+ memset(&ctx->buf[keylen], 0, BLAKE2S_BLOCK_SIZE - keylen);
+ ctx->buflen = BLAKE2S_BLOCK_SIZE;
+ }
+}
+
+/**
+ * blake2s_init() - Initialize a BLAKE2s context for a new message (unkeyed)
+ * @ctx: the context to initialize
+ * @outlen: length of output hash value in bytes, at most BLAKE2S_HASH_SIZE
+ *
+ * Context: Any context.
+ */
+static inline void blake2s_init(struct blake2s_ctx *ctx, size_t outlen)
+{
+ __blake2s_init(ctx, outlen, NULL, 0);
+}
+
+/**
+ * blake2s_init_key() - Initialize a BLAKE2s context for a new message (keyed)
+ * @ctx: the context to initialize
+ * @outlen: length of output hash value in bytes, at most BLAKE2S_HASH_SIZE
+ * @key: the key
+ * @keylen: the key length in bytes, at most BLAKE2S_KEY_SIZE
+ *
+ * Context: Any context.
+ */
+static inline void blake2s_init_key(struct blake2s_ctx *ctx, size_t outlen,
+ const void *key, size_t keylen)
+{
+ WARN_ON(IS_ENABLED(DEBUG) && (!outlen || outlen > BLAKE2S_HASH_SIZE ||
+ !key || !keylen || keylen > BLAKE2S_KEY_SIZE));
+
+ __blake2s_init(ctx, outlen, key, keylen);
+}
+
+/**
+ * blake2s_update() - Update a BLAKE2s context with message data
+ * @ctx: the context to update; must have been initialized
+ * @in: the message data
+ * @inlen: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void blake2s_update(struct blake2s_ctx *ctx, const u8 *in, size_t inlen);
+
+/**
+ * blake2s_final() - Finish computing a BLAKE2s hash
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting BLAKE2s hash. Its length will be equal to the
+ * @outlen that was passed to blake2s_init() or blake2s_init_key().
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void blake2s_final(struct blake2s_ctx *ctx, u8 *out);
+
+/**
+ * blake2s() - Compute BLAKE2s hash in one shot
+ * @key: the key, or NULL for an unkeyed hash
+ * @keylen: the key length in bytes (at most BLAKE2S_KEY_SIZE), or 0 for an
+ * unkeyed hash
+ * @in: the message data
+ * @inlen: the data length in bytes
+ * @out: (output) the resulting BLAKE2s hash, with length @outlen
+ * @outlen: length of output hash value in bytes, at most BLAKE2S_HASH_SIZE
+ *
+ * Context: Any context.
+ */
+static inline void blake2s(const u8 *key, size_t keylen,
+ const u8 *in, size_t inlen,
+ u8 *out, size_t outlen)
+{
+ struct blake2s_ctx ctx;
+
+ WARN_ON(IS_ENABLED(DEBUG) && ((!in && inlen > 0) || !out || !outlen ||
+ outlen > BLAKE2S_HASH_SIZE || keylen > BLAKE2S_KEY_SIZE ||
+ (!key && keylen)));
+
+ __blake2s_init(&ctx, outlen, key, keylen);
+ blake2s_update(&ctx, in, inlen);
+ blake2s_final(&ctx, out);
+}
+
+#endif /* _CRYPTO_BLAKE2S_H */
diff --git a/include/crypto/blowfish.h b/include/crypto/blowfish.h
new file mode 100644
index 000000000..9b384670b
--- /dev/null
+++ b/include/crypto/blowfish.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for blowfish algorithms
+ */
+
+#ifndef _CRYPTO_BLOWFISH_H
+#define _CRYPTO_BLOWFISH_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define BF_BLOCK_SIZE 8
+#define BF_MIN_KEY_SIZE 4
+#define BF_MAX_KEY_SIZE 56
+
+struct bf_ctx {
+ u32 p[18];
+ u32 s[1024];
+};
+
+int blowfish_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int key_len);
+
+#endif
diff --git a/include/crypto/cast5.h b/include/crypto/cast5.h
new file mode 100644
index 000000000..3d4ed4ea9
--- /dev/null
+++ b/include/crypto/cast5.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_CAST5_H
+#define _CRYPTO_CAST5_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <crypto/cast_common.h>
+
+#define CAST5_BLOCK_SIZE 8
+#define CAST5_MIN_KEY_SIZE 5
+#define CAST5_MAX_KEY_SIZE 16
+
+struct cast5_ctx {
+ u32 Km[16];
+ u8 Kr[16];
+ int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */
+};
+
+int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
+
+void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
+void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
+
+#endif
diff --git a/include/crypto/cast6.h b/include/crypto/cast6.h
new file mode 100644
index 000000000..38f490cd5
--- /dev/null
+++ b/include/crypto/cast6.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_CAST6_H
+#define _CRYPTO_CAST6_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <crypto/cast_common.h>
+
+#define CAST6_BLOCK_SIZE 16
+#define CAST6_MIN_KEY_SIZE 16
+#define CAST6_MAX_KEY_SIZE 32
+
+struct cast6_ctx {
+ u32 Km[12][4];
+ u8 Kr[12][4];
+};
+
+int __cast6_setkey(struct cast6_ctx *ctx, const u8 *key, unsigned int keylen);
+int cast6_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
+
+void __cast6_encrypt(const void *ctx, u8 *dst, const u8 *src);
+void __cast6_decrypt(const void *ctx, u8 *dst, const u8 *src);
+
+#endif
diff --git a/include/crypto/cast_common.h b/include/crypto/cast_common.h
new file mode 100644
index 000000000..b90090244
--- /dev/null
+++ b/include/crypto/cast_common.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_CAST_COMMON_H
+#define _CRYPTO_CAST_COMMON_H
+
+extern const u32 cast_s1[256];
+extern const u32 cast_s2[256];
+extern const u32 cast_s3[256];
+extern const u32 cast_s4[256];
+
+#endif
diff --git a/include/crypto/chacha.h b/include/crypto/chacha.h
new file mode 100644
index 000000000..1cc301a48
--- /dev/null
+++ b/include/crypto/chacha.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values and helper functions for the ChaCha and XChaCha stream ciphers.
+ *
+ * XChaCha extends ChaCha's nonce to 192 bits, while provably retaining ChaCha's
+ * security. Here they share the same key size, tfm context, and setkey
+ * function; only their IV size and encrypt/decrypt function differ.
+ *
+ * The ChaCha paper specifies 20, 12, and 8-round variants. In general, it is
+ * recommended to use the 20-round variant ChaCha20. However, the other
+ * variants can be needed in some performance-sensitive scenarios. The generic
+ * ChaCha code currently allows only the 20 and 12-round variants.
+ */
+
+#ifndef _CRYPTO_CHACHA_H
+#define _CRYPTO_CHACHA_H
+
+#include <linux/unaligned.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+/* 32-bit stream position, then 96-bit nonce (RFC7539 convention) */
+#define CHACHA_IV_SIZE 16
+
+#define CHACHA_KEY_SIZE 32
+#define CHACHA_BLOCK_SIZE 64
+#define CHACHAPOLY_IV_SIZE 12
+
+#define CHACHA_KEY_WORDS 8
+#define CHACHA_STATE_WORDS 16
+#define HCHACHA_OUT_WORDS 8
+
+/* 192-bit nonce, then 64-bit stream position */
+#define XCHACHA_IV_SIZE 32
+
+struct chacha_state {
+ u32 x[CHACHA_STATE_WORDS];
+};
+
+void chacha_block_generic(struct chacha_state *state,
+ u8 out[at_least CHACHA_BLOCK_SIZE], int nrounds);
+static inline void chacha20_block(struct chacha_state *state,
+ u8 out[at_least CHACHA_BLOCK_SIZE])
+{
+ chacha_block_generic(state, out, 20);
+}
+
+void hchacha_block_generic(const struct chacha_state *state,
+ u32 out[at_least HCHACHA_OUT_WORDS], int nrounds);
+
+void hchacha_block(const struct chacha_state *state,
+ u32 out[at_least HCHACHA_OUT_WORDS], int nrounds);
+
+enum chacha_constants { /* expand 32-byte k */
+ CHACHA_CONSTANT_EXPA = 0x61707865U,
+ CHACHA_CONSTANT_ND_3 = 0x3320646eU,
+ CHACHA_CONSTANT_2_BY = 0x79622d32U,
+ CHACHA_CONSTANT_TE_K = 0x6b206574U
+};
+
+static inline void chacha_init_consts(struct chacha_state *state)
+{
+ state->x[0] = CHACHA_CONSTANT_EXPA;
+ state->x[1] = CHACHA_CONSTANT_ND_3;
+ state->x[2] = CHACHA_CONSTANT_2_BY;
+ state->x[3] = CHACHA_CONSTANT_TE_K;
+}
+
+static inline void chacha_init(struct chacha_state *state,
+ const u32 key[at_least CHACHA_KEY_WORDS],
+ const u8 iv[at_least CHACHA_IV_SIZE])
+{
+ chacha_init_consts(state);
+ state->x[4] = key[0];
+ state->x[5] = key[1];
+ state->x[6] = key[2];
+ state->x[7] = key[3];
+ state->x[8] = key[4];
+ state->x[9] = key[5];
+ state->x[10] = key[6];
+ state->x[11] = key[7];
+ state->x[12] = get_unaligned_le32(iv + 0);
+ state->x[13] = get_unaligned_le32(iv + 4);
+ state->x[14] = get_unaligned_le32(iv + 8);
+ state->x[15] = get_unaligned_le32(iv + 12);
+}
+
+void chacha_crypt(struct chacha_state *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds);
+
+static inline void chacha20_crypt(struct chacha_state *state,
+ u8 *dst, const u8 *src, unsigned int bytes)
+{
+ chacha_crypt(state, dst, src, bytes, 20);
+}
+
+static inline void chacha_zeroize_state(struct chacha_state *state)
+{
+ memzero_explicit(state, sizeof(*state));
+}
+
+#endif /* _CRYPTO_CHACHA_H */
diff --git a/include/crypto/chacha20poly1305.h b/include/crypto/chacha20poly1305.h
new file mode 100644
index 000000000..0f6d99170
--- /dev/null
+++ b/include/crypto/chacha20poly1305.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef __CHACHA20POLY1305_H
+#define __CHACHA20POLY1305_H
+
+#include <linux/types.h>
+#include <linux/scatterlist.h>
+
+enum chacha20poly1305_lengths {
+ XCHACHA20POLY1305_NONCE_SIZE = 24,
+ CHACHA20POLY1305_KEY_SIZE = 32,
+ CHACHA20POLY1305_AUTHTAG_SIZE = 16
+};
+
+void chacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[at_least CHACHA20POLY1305_KEY_SIZE]);
+
+bool __must_check
+chacha20poly1305_decrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len, const u64 nonce,
+ const u8 key[at_least CHACHA20POLY1305_KEY_SIZE]);
+
+void xchacha20poly1305_encrypt(u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 nonce[at_least XCHACHA20POLY1305_NONCE_SIZE],
+ const u8 key[at_least CHACHA20POLY1305_KEY_SIZE]);
+
+bool __must_check xchacha20poly1305_decrypt(
+ u8 *dst, const u8 *src, const size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u8 nonce[at_least XCHACHA20POLY1305_NONCE_SIZE],
+ const u8 key[at_least CHACHA20POLY1305_KEY_SIZE]);
+
+bool chacha20poly1305_encrypt_sg_inplace(struct scatterlist *src, size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[at_least CHACHA20POLY1305_KEY_SIZE]);
+
+bool chacha20poly1305_decrypt_sg_inplace(struct scatterlist *src, size_t src_len,
+ const u8 *ad, const size_t ad_len,
+ const u64 nonce,
+ const u8 key[at_least CHACHA20POLY1305_KEY_SIZE]);
+
+#endif /* __CHACHA20POLY1305_H */
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
new file mode 100644
index 000000000..29c5878a3
--- /dev/null
+++ b/include/crypto/cryptd.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Software async crypto daemon
+ *
+ * Added AEAD support to cryptd.
+ * Authors: Tadeusz Struk (tadeusz.struk@intel.com)
+ * Adrian Hoban <adrian.hoban@intel.com>
+ * Gabriele Paoloni <gabriele.paoloni@intel.com>
+ * Aidan O'Mahony (aidan.o.mahony@intel.com)
+ * Copyright (c) 2010, Intel Corporation.
+ */
+
+#ifndef _CRYPTO_CRYPT_H
+#define _CRYPTO_CRYPT_H
+
+#include <linux/types.h>
+
+#include <crypto/aead.h>
+
+struct cryptd_aead {
+ struct crypto_aead base;
+};
+
+static inline struct cryptd_aead *__cryptd_aead_cast(
+ struct crypto_aead *tfm)
+{
+ return (struct cryptd_aead *)tfm;
+}
+
+struct cryptd_aead *cryptd_alloc_aead(const char *alg_name,
+ u32 type, u32 mask);
+
+struct crypto_aead *cryptd_aead_child(struct cryptd_aead *tfm);
+/* Must be called without moving CPUs. */
+bool cryptd_aead_queued(struct cryptd_aead *tfm);
+
+void cryptd_free_aead(struct cryptd_aead *tfm);
+
+#endif
diff --git a/include/crypto/ctr.h b/include/crypto/ctr.h
new file mode 100644
index 000000000..06984a26c
--- /dev/null
+++ b/include/crypto/ctr.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * CTR: Counter mode
+ *
+ * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_CTR_H
+#define _CRYPTO_CTR_H
+
+#define CTR_RFC3686_NONCE_SIZE 4
+#define CTR_RFC3686_IV_SIZE 8
+#define CTR_RFC3686_BLOCK_SIZE 16
+
+#endif /* _CRYPTO_CTR_H */
diff --git a/include/crypto/curve25519.h b/include/crypto/curve25519.h
new file mode 100644
index 000000000..2362b48f8
--- /dev/null
+++ b/include/crypto/curve25519.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#ifndef CURVE25519_H
+#define CURVE25519_H
+
+#include <linux/types.h>
+#include <linux/random.h>
+
+enum curve25519_lengths {
+ CURVE25519_KEY_SIZE = 32
+};
+
+void curve25519_generic(u8 out[at_least CURVE25519_KEY_SIZE],
+ const u8 scalar[at_least CURVE25519_KEY_SIZE],
+ const u8 point[at_least CURVE25519_KEY_SIZE]);
+
+bool __must_check
+curve25519(u8 mypublic[at_least CURVE25519_KEY_SIZE],
+ const u8 secret[at_least CURVE25519_KEY_SIZE],
+ const u8 basepoint[at_least CURVE25519_KEY_SIZE]);
+
+bool __must_check
+curve25519_generate_public(u8 pub[at_least CURVE25519_KEY_SIZE],
+ const u8 secret[at_least CURVE25519_KEY_SIZE]);
+
+static inline void
+curve25519_clamp_secret(u8 secret[at_least CURVE25519_KEY_SIZE])
+{
+ secret[0] &= 248;
+ secret[31] = (secret[31] & 127) | 64;
+}
+
+static inline void
+curve25519_generate_secret(u8 secret[at_least CURVE25519_KEY_SIZE])
+{
+ get_random_bytes_wait(secret, CURVE25519_KEY_SIZE);
+ curve25519_clamp_secret(secret);
+}
+
+#endif /* CURVE25519_H */
diff --git a/include/crypto/des.h b/include/crypto/des.h
new file mode 100644
index 000000000..73eec617f
--- /dev/null
+++ b/include/crypto/des.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * DES & Triple DES EDE Cipher Algorithms.
+ */
+
+#ifndef __CRYPTO_DES_H
+#define __CRYPTO_DES_H
+
+#include <linux/types.h>
+
+#define DES_KEY_SIZE 8
+#define DES_EXPKEY_WORDS 32
+#define DES_BLOCK_SIZE 8
+
+#define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE)
+#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
+#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
+
+struct des_ctx {
+ u32 expkey[DES_EXPKEY_WORDS];
+};
+
+struct des3_ede_ctx {
+ u32 expkey[DES3_EDE_EXPKEY_WORDS];
+};
+
+void des_encrypt(const struct des_ctx *ctx, u8 *dst, const u8 *src);
+void des_decrypt(const struct des_ctx *ctx, u8 *dst, const u8 *src);
+
+void des3_ede_encrypt(const struct des3_ede_ctx *dctx, u8 *dst, const u8 *src);
+void des3_ede_decrypt(const struct des3_ede_ctx *dctx, u8 *dst, const u8 *src);
+
+/**
+ * des_expand_key - Expand a DES input key into a key schedule
+ * @ctx: the key schedule
+ * @key: buffer containing the input key
+ * @keylen: size of the buffer contents
+ *
+ * Returns: 0 on success, -EINVAL if the input key is rejected and -ENOKEY if
+ * the key is accepted but has been found to be weak.
+ */
+int des_expand_key(struct des_ctx *ctx, const u8 *key, unsigned int keylen);
+
+/**
+ * des3_ede_expand_key - Expand a triple DES input key into a key schedule
+ * @ctx: the key schedule
+ * @key: buffer containing the input key
+ * @keylen: size of the buffer contents
+ *
+ * Returns: 0 on success, -EINVAL if the input key is rejected and -ENOKEY if
+ * the key is accepted but has been found to be weak. Note that weak keys will
+ * be rejected (and -EINVAL will be returned) when running in FIPS mode.
+ */
+int des3_ede_expand_key(struct des3_ede_ctx *ctx, const u8 *key,
+ unsigned int keylen);
+
+#endif /* __CRYPTO_DES_H */
diff --git a/include/crypto/dh.h b/include/crypto/dh.h
new file mode 100644
index 000000000..7b863e911
--- /dev/null
+++ b/include/crypto/dh.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Diffie-Hellman secret to be used with kpp API along with helper functions
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ */
+#ifndef _CRYPTO_DH_
+#define _CRYPTO_DH_
+
+/**
+ * DOC: DH Helper Functions
+ *
+ * To use DH with the KPP cipher API, the following data structure and
+ * functions should be used.
+ *
+ * To use DH with KPP, the following functions should be used to operate on
+ * a DH private key. The packet private key that can be set with
+ * the KPP API function call of crypto_kpp_set_secret.
+ */
+
+/**
+ * struct dh - define a DH private key
+ *
+ * @key: Private DH key
+ * @p: Diffie-Hellman parameter P
+ * @g: Diffie-Hellman generator G
+ * @key_size: Size of the private DH key
+ * @p_size: Size of DH parameter P
+ * @g_size: Size of DH generator G
+ */
+struct dh {
+ const void *key;
+ const void *p;
+ const void *g;
+ unsigned int key_size;
+ unsigned int p_size;
+ unsigned int g_size;
+};
+
+/**
+ * crypto_dh_key_len() - Obtain the size of the private DH key
+ * @params: private DH key
+ *
+ * This function returns the packet DH key size. A caller can use that
+ * with the provided DH private key reference to obtain the required
+ * memory size to hold a packet key.
+ *
+ * Return: size of the key in bytes
+ */
+unsigned int crypto_dh_key_len(const struct dh *params);
+
+/**
+ * crypto_dh_encode_key() - encode the private key
+ * @buf: Buffer allocated by the caller to hold the packet DH
+ * private key. The buffer should be at least crypto_dh_key_len
+ * bytes in size.
+ * @len: Length of the packet private key buffer
+ * @params: Buffer with the caller-specified private key
+ *
+ * The DH implementations operate on a packet representation of the private
+ * key.
+ *
+ * Return: -EINVAL if buffer has insufficient size, 0 on success
+ */
+int crypto_dh_encode_key(char *buf, unsigned int len, const struct dh *params);
+
+/**
+ * crypto_dh_decode_key() - decode a private key
+ * @buf: Buffer holding a packet key that should be decoded
+ * @len: Length of the packet private key buffer
+ * @params: Buffer allocated by the caller that is filled with the
+ * unpacked DH private key.
+ *
+ * The unpacking obtains the private key by pointing @p to the correct location
+ * in @buf. Thus, both pointers refer to the same memory.
+ *
+ * Return: -EINVAL if buffer has insufficient size, 0 on success
+ */
+int crypto_dh_decode_key(const char *buf, unsigned int len, struct dh *params);
+
+/**
+ * __crypto_dh_decode_key() - decode a private key without parameter checks
+ * @buf: Buffer holding a packet key that should be decoded
+ * @len: Length of the packet private key buffer
+ * @params: Buffer allocated by the caller that is filled with the
+ * unpacked DH private key.
+ *
+ * Internal function providing the same services as the exported
+ * crypto_dh_decode_key(), but without any of those basic parameter
+ * checks conducted by the latter.
+ *
+ * Return: -EINVAL if buffer has insufficient size, 0 on success
+ */
+int __crypto_dh_decode_key(const char *buf, unsigned int len,
+ struct dh *params);
+
+#endif
diff --git a/include/crypto/ecc_curve.h b/include/crypto/ecc_curve.h
new file mode 100644
index 000000000..7d90c5e82
--- /dev/null
+++ b/include/crypto/ecc_curve.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 HiSilicon */
+
+#ifndef _CRYTO_ECC_CURVE_H
+#define _CRYTO_ECC_CURVE_H
+
+#include <linux/types.h>
+
+/**
+ * struct ecc_point - elliptic curve point in affine coordinates
+ *
+ * @x: X coordinate in vli form.
+ * @y: Y coordinate in vli form.
+ * @ndigits: Length of vlis in u64 qwords.
+ */
+struct ecc_point {
+ u64 *x;
+ u64 *y;
+ u8 ndigits;
+};
+
+/**
+ * struct ecc_curve - definition of elliptic curve
+ *
+ * @name: Short name of the curve.
+ * @nbits: The number of bits of a curve.
+ * @g: Generator point of the curve.
+ * @p: Prime number, if Barrett's reduction is used for this curve
+ * pre-calculated value 'mu' is appended to the @p after ndigits.
+ * Use of Barrett's reduction is heuristically determined in
+ * vli_mmod_fast().
+ * @n: Order of the curve group.
+ * @a: Curve parameter a.
+ * @b: Curve parameter b.
+ */
+struct ecc_curve {
+ char *name;
+ u32 nbits;
+ struct ecc_point g;
+ u64 *p;
+ u64 *n;
+ u64 *a;
+ u64 *b;
+};
+
+/**
+ * ecc_get_curve() - get elliptic curve;
+ * @curve_id: Curves IDs:
+ * defined in 'include/crypto/ecdh.h';
+ *
+ * Returns curve if get curve succssful, NULL otherwise
+ */
+const struct ecc_curve *ecc_get_curve(unsigned int curve_id);
+
+/**
+ * ecc_get_curve25519() - get curve25519 curve;
+ *
+ * Returns curve25519
+ */
+const struct ecc_curve *ecc_get_curve25519(void);
+
+#endif
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
new file mode 100644
index 000000000..9784ecdd2
--- /dev/null
+++ b/include/crypto/ecdh.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ECDH params to be used with kpp API
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ */
+#ifndef _CRYPTO_ECDH_
+#define _CRYPTO_ECDH_
+
+/**
+ * DOC: ECDH Helper Functions
+ *
+ * To use ECDH with the KPP cipher API, the following data structure and
+ * functions should be used.
+ *
+ * The ECC curves known to the ECDH implementation are specified in this
+ * header file.
+ *
+ * To use ECDH with KPP, the following functions should be used to operate on
+ * an ECDH private key. The packet private key that can be set with
+ * the KPP API function call of crypto_kpp_set_secret.
+ */
+
+/* Curves IDs */
+#define ECC_CURVE_NIST_P192 0x0001
+#define ECC_CURVE_NIST_P256 0x0002
+#define ECC_CURVE_NIST_P384 0x0003
+#define ECC_CURVE_NIST_P521 0x0004
+
+/**
+ * struct ecdh - define an ECDH private key
+ *
+ * @key: Private ECDH key
+ * @key_size: Size of the private ECDH key
+ */
+struct ecdh {
+ char *key;
+ unsigned short key_size;
+};
+
+/**
+ * crypto_ecdh_key_len() - Obtain the size of the private ECDH key
+ * @params: private ECDH key
+ *
+ * This function returns the packet ECDH key size. A caller can use that
+ * with the provided ECDH private key reference to obtain the required
+ * memory size to hold a packet key.
+ *
+ * Return: size of the key in bytes
+ */
+unsigned int crypto_ecdh_key_len(const struct ecdh *params);
+
+/**
+ * crypto_ecdh_encode_key() - encode the private key
+ * @buf: Buffer allocated by the caller to hold the packet ECDH
+ * private key. The buffer should be at least crypto_ecdh_key_len
+ * bytes in size.
+ * @len: Length of the packet private key buffer
+ * @p: Buffer with the caller-specified private key
+ *
+ * The ECDH implementations operate on a packet representation of the private
+ * key.
+ *
+ * Return: -EINVAL if buffer has insufficient size, 0 on success
+ */
+int crypto_ecdh_encode_key(char *buf, unsigned int len, const struct ecdh *p);
+
+/**
+ * crypto_ecdh_decode_key() - decode a private key
+ * @buf: Buffer holding a packet key that should be decoded
+ * @len: Length of the packet private key buffer
+ * @p: Buffer allocated by the caller that is filled with the
+ * unpacked ECDH private key.
+ *
+ * The unpacking obtains the private key by pointing @p to the correct location
+ * in @buf. Thus, both pointers refer to the same memory.
+ *
+ * Return: -EINVAL if buffer has insufficient size, 0 on success
+ */
+int crypto_ecdh_decode_key(const char *buf, unsigned int len, struct ecdh *p);
+
+#endif
diff --git a/include/crypto/engine.h b/include/crypto/engine.h
new file mode 100644
index 000000000..2e6034443
--- /dev/null
+++ b/include/crypto/engine.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Crypto engine API
+ *
+ * Copyright (c) 2016 Baolin Wang <baolin.wang@linaro.org>
+ */
+#ifndef _CRYPTO_ENGINE_H
+#define _CRYPTO_ENGINE_H
+
+#include <crypto/aead.h>
+#include <crypto/akcipher.h>
+#include <crypto/hash.h>
+#include <crypto/kpp.h>
+#include <crypto/skcipher.h>
+#include <linux/types.h>
+
+struct crypto_engine;
+struct device;
+
+/*
+ * struct crypto_engine_op - crypto hardware engine operations
+ * @do_one_request: do encryption for current request
+ */
+struct crypto_engine_op {
+ int (*do_one_request)(struct crypto_engine *engine,
+ void *areq);
+};
+
+struct aead_engine_alg {
+ struct aead_alg base;
+ struct crypto_engine_op op;
+};
+
+struct ahash_engine_alg {
+ struct ahash_alg base;
+ struct crypto_engine_op op;
+};
+
+struct akcipher_engine_alg {
+ struct akcipher_alg base;
+ struct crypto_engine_op op;
+};
+
+struct kpp_engine_alg {
+ struct kpp_alg base;
+ struct crypto_engine_op op;
+};
+
+struct skcipher_engine_alg {
+ struct skcipher_alg base;
+ struct crypto_engine_op op;
+};
+
+int crypto_transfer_aead_request_to_engine(struct crypto_engine *engine,
+ struct aead_request *req);
+int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
+ struct akcipher_request *req);
+int crypto_transfer_hash_request_to_engine(struct crypto_engine *engine,
+ struct ahash_request *req);
+int crypto_transfer_kpp_request_to_engine(struct crypto_engine *engine,
+ struct kpp_request *req);
+int crypto_transfer_skcipher_request_to_engine(struct crypto_engine *engine,
+ struct skcipher_request *req);
+void crypto_finalize_aead_request(struct crypto_engine *engine,
+ struct aead_request *req, int err);
+void crypto_finalize_akcipher_request(struct crypto_engine *engine,
+ struct akcipher_request *req, int err);
+void crypto_finalize_hash_request(struct crypto_engine *engine,
+ struct ahash_request *req, int err);
+void crypto_finalize_kpp_request(struct crypto_engine *engine,
+ struct kpp_request *req, int err);
+void crypto_finalize_skcipher_request(struct crypto_engine *engine,
+ struct skcipher_request *req, int err);
+int crypto_engine_start(struct crypto_engine *engine);
+int crypto_engine_stop(struct crypto_engine *engine);
+struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt);
+struct crypto_engine *crypto_engine_alloc_init_and_set(struct device *dev,
+ bool retry_support,
+ bool rt, int qlen);
+void crypto_engine_exit(struct crypto_engine *engine);
+
+int crypto_engine_register_aead(struct aead_engine_alg *alg);
+void crypto_engine_unregister_aead(struct aead_engine_alg *alg);
+int crypto_engine_register_aeads(struct aead_engine_alg *algs, int count);
+void crypto_engine_unregister_aeads(struct aead_engine_alg *algs, int count);
+
+int crypto_engine_register_ahash(struct ahash_engine_alg *alg);
+void crypto_engine_unregister_ahash(struct ahash_engine_alg *alg);
+int crypto_engine_register_ahashes(struct ahash_engine_alg *algs, int count);
+void crypto_engine_unregister_ahashes(struct ahash_engine_alg *algs,
+ int count);
+
+int crypto_engine_register_akcipher(struct akcipher_engine_alg *alg);
+void crypto_engine_unregister_akcipher(struct akcipher_engine_alg *alg);
+
+int crypto_engine_register_kpp(struct kpp_engine_alg *alg);
+void crypto_engine_unregister_kpp(struct kpp_engine_alg *alg);
+
+int crypto_engine_register_skcipher(struct skcipher_engine_alg *alg);
+void crypto_engine_unregister_skcipher(struct skcipher_engine_alg *alg);
+int crypto_engine_register_skciphers(struct skcipher_engine_alg *algs,
+ int count);
+void crypto_engine_unregister_skciphers(struct skcipher_engine_alg *algs,
+ int count);
+
+#endif /* _CRYPTO_ENGINE_H */
diff --git a/include/crypto/gcm.h b/include/crypto/gcm.h
new file mode 100644
index 000000000..154038ca7
--- /dev/null
+++ b/include/crypto/gcm.h
@@ -0,0 +1,64 @@
+#ifndef _CRYPTO_GCM_H
+#define _CRYPTO_GCM_H
+
+#include <linux/errno.h>
+
+#define GCM_AES_IV_SIZE 12
+#define GCM_RFC4106_IV_SIZE 8
+#define GCM_RFC4543_IV_SIZE 8
+
+/*
+ * validate authentication tag for GCM
+ */
+static inline int crypto_gcm_check_authsize(size_t authsize)
+{
+ switch (authsize) {
+ case 4:
+ case 8:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * validate authentication tag for RFC4106
+ */
+static inline int crypto_rfc4106_check_authsize(size_t authsize)
+{
+ switch (authsize) {
+ case 8:
+ case 12:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * validate assoclen for RFC4106/RFC4543
+ */
+static inline int crypto_ipsec_check_assoclen(unsigned int assoclen)
+{
+ switch (assoclen) {
+ case 16:
+ case 20:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#endif
diff --git a/include/crypto/gf128hash.h b/include/crypto/gf128hash.h
new file mode 100644
index 000000000..41c557d55
--- /dev/null
+++ b/include/crypto/gf128hash.h
@@ -0,0 +1,276 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * GF(2^128) polynomial hashing: GHASH and POLYVAL
+ *
+ * Copyright 2025 Google LLC
+ */
+
+#ifndef _CRYPTO_GF128HASH_H
+#define _CRYPTO_GF128HASH_H
+
+#include <crypto/ghash.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#define POLYVAL_BLOCK_SIZE 16
+#define POLYVAL_DIGEST_SIZE 16
+
+/**
+ * struct polyval_elem - An element of the POLYVAL finite field
+ * @bytes: View of the element as a byte array (unioned with @lo and @hi)
+ * @lo: The low 64 terms of the element's polynomial
+ * @hi: The high 64 terms of the element's polynomial
+ *
+ * This represents an element of the finite field GF(2^128), using the POLYVAL
+ * convention: little-endian byte order and natural bit order.
+ */
+struct polyval_elem {
+ union {
+ u8 bytes[POLYVAL_BLOCK_SIZE];
+ struct {
+ __le64 lo;
+ __le64 hi;
+ };
+ };
+};
+
+/**
+ * struct ghash_key - Prepared key for GHASH
+ *
+ * Use ghash_preparekey() to initialize this.
+ */
+struct ghash_key {
+#if defined(CONFIG_CRYPTO_LIB_GF128HASH_ARCH) && defined(CONFIG_PPC64)
+ /** @htable: GHASH key format used by the POWER8 assembly code */
+ u64 htable[4][2];
+#elif defined(CONFIG_CRYPTO_LIB_GF128HASH_ARCH) && \
+ (defined(CONFIG_RISCV) || defined(CONFIG_S390))
+ /** @h_raw: The hash key H, in GHASH format */
+ u8 h_raw[GHASH_BLOCK_SIZE];
+#endif
+ /** @h: The hash key H, in POLYVAL format */
+ struct polyval_elem h;
+};
+
+/**
+ * struct polyval_key - Prepared key for POLYVAL
+ *
+ * This may contain just the raw key H, or it may contain precomputed key
+ * powers, depending on the platform's POLYVAL implementation. Use
+ * polyval_preparekey() to initialize this.
+ *
+ * By H^i we mean H^(i-1) * H * x^-128, with base case H^1 = H. I.e. the
+ * exponentiation repeats the POLYVAL dot operation, with its "extra" x^-128.
+ */
+struct polyval_key {
+#if defined(CONFIG_CRYPTO_LIB_GF128HASH_ARCH) && \
+ (defined(CONFIG_ARM64) || defined(CONFIG_X86))
+ /** @h_powers: Powers of the hash key H^8 through H^1 */
+ struct polyval_elem h_powers[8];
+#else
+ /** @h: The hash key H */
+ struct polyval_elem h;
+#endif
+};
+
+/**
+ * struct ghash_ctx - Context for computing a GHASH value
+ * @key: Pointer to the prepared GHASH key. The user of the API is
+ * responsible for ensuring that the key lives as long as the context.
+ * @acc: The accumulator. It is stored in POLYVAL format rather than GHASH
+ * format, since most implementations want it in POLYVAL format.
+ * @partial: Number of data bytes processed so far modulo GHASH_BLOCK_SIZE
+ */
+struct ghash_ctx {
+ const struct ghash_key *key;
+ struct polyval_elem acc;
+ size_t partial;
+};
+
+/**
+ * struct polyval_ctx - Context for computing a POLYVAL value
+ * @key: Pointer to the prepared POLYVAL key. The user of the API is
+ * responsible for ensuring that the key lives as long as the context.
+ * @acc: The accumulator
+ * @partial: Number of data bytes processed so far modulo POLYVAL_BLOCK_SIZE
+ */
+struct polyval_ctx {
+ const struct polyval_key *key;
+ struct polyval_elem acc;
+ size_t partial;
+};
+
+/**
+ * ghash_preparekey() - Prepare a GHASH key
+ * @key: (output) The key structure to initialize
+ * @raw_key: The raw hash key
+ *
+ * Initialize a GHASH key structure from a raw key.
+ *
+ * Context: Any context.
+ */
+void ghash_preparekey(struct ghash_key *key,
+ const u8 raw_key[GHASH_BLOCK_SIZE]);
+
+/**
+ * polyval_preparekey() - Prepare a POLYVAL key
+ * @key: (output) The key structure to initialize
+ * @raw_key: The raw hash key
+ *
+ * Initialize a POLYVAL key structure from a raw key. This may be a simple
+ * copy, or it may involve precomputing powers of the key, depending on the
+ * platform's POLYVAL implementation.
+ *
+ * Context: Any context.
+ */
+void polyval_preparekey(struct polyval_key *key,
+ const u8 raw_key[POLYVAL_BLOCK_SIZE]);
+
+/**
+ * ghash_init() - Initialize a GHASH context for a new message
+ * @ctx: The context to initialize
+ * @key: The key to use. Note that a pointer to the key is saved in the
+ * context, so the key must live at least as long as the context.
+ */
+static inline void ghash_init(struct ghash_ctx *ctx,
+ const struct ghash_key *key)
+{
+ *ctx = (struct ghash_ctx){ .key = key };
+}
+
+/**
+ * polyval_init() - Initialize a POLYVAL context for a new message
+ * @ctx: The context to initialize
+ * @key: The key to use. Note that a pointer to the key is saved in the
+ * context, so the key must live at least as long as the context.
+ */
+static inline void polyval_init(struct polyval_ctx *ctx,
+ const struct polyval_key *key)
+{
+ *ctx = (struct polyval_ctx){ .key = key };
+}
+
+/**
+ * polyval_import_blkaligned() - Import a POLYVAL accumulator value
+ * @ctx: The context to initialize
+ * @key: The key to import. Note that a pointer to the key is saved in the
+ * context, so the key must live at least as long as the context.
+ * @acc: The accumulator value to import.
+ *
+ * This imports an accumulator that was saved by polyval_export_blkaligned().
+ * The same key must be used.
+ */
+static inline void
+polyval_import_blkaligned(struct polyval_ctx *ctx,
+ const struct polyval_key *key,
+ const struct polyval_elem *acc)
+{
+ *ctx = (struct polyval_ctx){ .key = key, .acc = *acc };
+}
+
+/**
+ * polyval_export_blkaligned() - Export a POLYVAL accumulator value
+ * @ctx: The context to export the accumulator value from
+ * @acc: (output) The exported accumulator value
+ *
+ * This exports the accumulator from a POLYVAL context. The number of data
+ * bytes processed so far must be a multiple of POLYVAL_BLOCK_SIZE.
+ */
+static inline void polyval_export_blkaligned(const struct polyval_ctx *ctx,
+ struct polyval_elem *acc)
+{
+ *acc = ctx->acc;
+}
+
+/**
+ * ghash_update() - Update a GHASH context with message data
+ * @ctx: The context to update; must have been initialized
+ * @data: The message data
+ * @len: The data length in bytes. Doesn't need to be block-aligned.
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void ghash_update(struct ghash_ctx *ctx, const u8 *data, size_t len);
+
+/**
+ * polyval_update() - Update a POLYVAL context with message data
+ * @ctx: The context to update; must have been initialized
+ * @data: The message data
+ * @len: The data length in bytes. Doesn't need to be block-aligned.
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void polyval_update(struct polyval_ctx *ctx, const u8 *data, size_t len);
+
+/**
+ * ghash_final() - Finish computing a GHASH value
+ * @ctx: The context to finalize
+ * @out: The output value
+ *
+ * If the total data length isn't a multiple of GHASH_BLOCK_SIZE, then the
+ * final block is automatically zero-padded.
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void ghash_final(struct ghash_ctx *ctx, u8 out[GHASH_BLOCK_SIZE]);
+
+/**
+ * polyval_final() - Finish computing a POLYVAL value
+ * @ctx: The context to finalize
+ * @out: The output value
+ *
+ * If the total data length isn't a multiple of POLYVAL_BLOCK_SIZE, then the
+ * final block is automatically zero-padded.
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void polyval_final(struct polyval_ctx *ctx, u8 out[POLYVAL_BLOCK_SIZE]);
+
+/**
+ * ghash() - Compute a GHASH value
+ * @key: The prepared key
+ * @data: The message data
+ * @len: The data length in bytes. Doesn't need to be block-aligned.
+ * @out: The output value
+ *
+ * Context: Any context.
+ */
+static inline void ghash(const struct ghash_key *key, const u8 *data,
+ size_t len, u8 out[GHASH_BLOCK_SIZE])
+{
+ struct ghash_ctx ctx;
+
+ ghash_init(&ctx, key);
+ ghash_update(&ctx, data, len);
+ ghash_final(&ctx, out);
+}
+
+/**
+ * polyval() - Compute a POLYVAL value
+ * @key: The prepared key
+ * @data: The message data
+ * @len: The data length in bytes. Doesn't need to be block-aligned.
+ * @out: The output value
+ *
+ * Context: Any context.
+ */
+static inline void polyval(const struct polyval_key *key,
+ const u8 *data, size_t len,
+ u8 out[POLYVAL_BLOCK_SIZE])
+{
+ struct polyval_ctx ctx;
+
+ polyval_init(&ctx, key);
+ polyval_update(&ctx, data, len);
+ polyval_final(&ctx, out);
+}
+
+#endif /* _CRYPTO_GF128HASH_H */
diff --git a/include/crypto/gf128mul.h b/include/crypto/gf128mul.h
new file mode 100644
index 000000000..6ed2a8351
--- /dev/null
+++ b/include/crypto/gf128mul.h
@@ -0,0 +1,237 @@
+/* gf128mul.h - GF(2^128) multiplication functions
+ *
+ * Copyright (c) 2003, Dr Brian Gladman, Worcester, UK.
+ * Copyright (c) 2006 Rik Snel <rsnel@cube.dyndns.org>
+ *
+ * Based on Dr Brian Gladman's (GPL'd) work published at
+ * http://fp.gladman.plus.com/cryptography_technology/index.htm
+ * See the original copyright notice below.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved.
+
+ LICENSE TERMS
+
+ The free distribution and use of this software in both source and binary
+ form is allowed (with or without changes) provided that:
+
+ 1. distributions of this source code include the above copyright
+ notice, this list of conditions and the following disclaimer;
+
+ 2. distributions in binary form include the above copyright
+ notice, this list of conditions and the following disclaimer
+ in the documentation and/or other associated materials;
+
+ 3. the copyright holder's name is not used to endorse products
+ built using this software without specific written permission.
+
+ ALTERNATIVELY, provided that this notice is retained in full, this product
+ may be distributed under the terms of the GNU General Public License (GPL),
+ in which case the provisions of the GPL apply INSTEAD OF those given above.
+
+ DISCLAIMER
+
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ ---------------------------------------------------------------------------
+ Issue Date: 31/01/2006
+
+ An implementation of field multiplication in Galois Field GF(2^128)
+*/
+
+#ifndef _CRYPTO_GF128MUL_H
+#define _CRYPTO_GF128MUL_H
+
+#include <asm/byteorder.h>
+#include <crypto/b128ops.h>
+#include <linux/slab.h>
+
+/* Comment by Rik:
+ *
+ * For some background on GF(2^128) see for example:
+ * http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
+ *
+ * The elements of GF(2^128) := GF(2)[X]/(X^128-X^7-X^2-X^1-1) can
+ * be mapped to computer memory in a variety of ways. Let's examine
+ * three common cases.
+ *
+ * Take a look at the 16 binary octets below in memory order. The msb's
+ * are left and the lsb's are right. char b[16] is an array and b[0] is
+ * the first octet.
+ *
+ * 10000000 00000000 00000000 00000000 .... 00000000 00000000 00000000
+ * b[0] b[1] b[2] b[3] b[13] b[14] b[15]
+ *
+ * Every bit is a coefficient of some power of X. We can store the bits
+ * in every byte in little-endian order and the bytes themselves also in
+ * little endian order. I will call this lle (little-little-endian).
+ * The above buffer represents the polynomial 1, and X^7+X^2+X^1+1 looks
+ * like 11100001 00000000 .... 00000000 = { 0xE1, 0x00, }.
+ * This format was originally implemented in gf128mul and is used
+ * in GCM (Galois/Counter mode) and in ABL (Arbitrary Block Length).
+ *
+ * Another convention says: store the bits in bigendian order and the
+ * bytes also. This is bbe (big-big-endian). Now the buffer above
+ * represents X^127. X^7+X^2+X^1+1 looks like 00000000 .... 10000111,
+ * b[15] = 0x87 and the rest is 0. LRW uses this convention and bbe
+ * is partly implemented.
+ *
+ * Both of the above formats are easy to implement on big-endian
+ * machines.
+ *
+ * XTS and EME (the latter of which is patent encumbered) use the ble
+ * format (bits are stored in big endian order and the bytes in little
+ * endian). The above buffer represents X^7 in this case and the
+ * primitive polynomial is b[0] = 0x87.
+ *
+ * The common machine word-size is smaller than 128 bits, so to make
+ * an efficient implementation we must split into machine word sizes.
+ * This implementation uses 64-bit words for the moment. Machine
+ * endianness comes into play. The lle format in relation to machine
+ * endianness is discussed below by the original author of gf128mul Dr
+ * Brian Gladman.
+ *
+ * Let's look at the bbe and ble format on a little endian machine.
+ *
+ * bbe on a little endian machine u32 x[4]:
+ *
+ * MS x[0] LS MS x[1] LS
+ * ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ * 103..96 111.104 119.112 127.120 71...64 79...72 87...80 95...88
+ *
+ * MS x[2] LS MS x[3] LS
+ * ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ * 39...32 47...40 55...48 63...56 07...00 15...08 23...16 31...24
+ *
+ * ble on a little endian machine
+ *
+ * MS x[0] LS MS x[1] LS
+ * ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ * 31...24 23...16 15...08 07...00 63...56 55...48 47...40 39...32
+ *
+ * MS x[2] LS MS x[3] LS
+ * ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ * 95...88 87...80 79...72 71...64 127.120 199.112 111.104 103..96
+ *
+ * Multiplications in GF(2^128) are mostly bit-shifts, so you see why
+ * ble (and lbe also) are easier to implement on a little-endian
+ * machine than on a big-endian machine. The converse holds for bbe
+ * and lle.
+ *
+ * Note: to have good alignment, it seems to me that it is sufficient
+ * to keep elements of GF(2^128) in type u64[2]. On 32-bit wordsize
+ * machines this will automatically aligned to wordsize and on a 64-bit
+ * machine also.
+ */
+/* Multiply a GF(2^128) field element by x. Field elements are
+ held in arrays of bytes in which field bits 8n..8n + 7 are held in
+ byte[n], with lower indexed bits placed in the more numerically
+ significant bit positions within bytes.
+
+ On little endian machines the bit indexes translate into the bit
+ positions within four 32-bit words in the following way
+
+ MS x[0] LS MS x[1] LS
+ ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ 24...31 16...23 08...15 00...07 56...63 48...55 40...47 32...39
+
+ MS x[2] LS MS x[3] LS
+ ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ 88...95 80...87 72...79 64...71 120.127 112.119 104.111 96..103
+
+ On big endian machines the bit indexes translate into the bit
+ positions within four 32-bit words in the following way
+
+ MS x[0] LS MS x[1] LS
+ ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ 00...07 08...15 16...23 24...31 32...39 40...47 48...55 56...63
+
+ MS x[2] LS MS x[3] LS
+ ms ls ms ls ms ls ms ls ms ls ms ls ms ls ms ls
+ 64...71 72...79 80...87 88...95 96..103 104.111 112.119 120.127
+*/
+
+/* A slow generic version of gf_mul, implemented for lle
+ * It multiplies a and b and puts the result in a */
+void gf128mul_lle(be128 *a, const be128 *b);
+
+/*
+ * The following functions multiply a field element by x in
+ * the polynomial field representation. They use 64-bit word operations
+ * to gain speed but compensate for machine endianness and hence work
+ * correctly on both styles of machine.
+ *
+ * They are defined here for performance.
+ */
+
+static inline u64 gf128mul_mask_from_bit(u64 x, int which)
+{
+ /* a constant-time version of 'x & ((u64)1 << which) ? (u64)-1 : 0' */
+ return ((s64)(x << (63 - which)) >> 63);
+}
+
+static inline void gf128mul_x_lle(be128 *r, const be128 *x)
+{
+ u64 a = be64_to_cpu(x->a);
+ u64 b = be64_to_cpu(x->b);
+
+ /* equivalent to gf128mul_table_le[(b << 7) & 0xff] << 48
+ * (see crypto/gf128mul.c): */
+ u64 _tt = gf128mul_mask_from_bit(b, 0) & ((u64)0xe1 << 56);
+
+ r->b = cpu_to_be64((b >> 1) | (a << 63));
+ r->a = cpu_to_be64((a >> 1) ^ _tt);
+}
+
+static inline void gf128mul_x_bbe(be128 *r, const be128 *x)
+{
+ u64 a = be64_to_cpu(x->a);
+ u64 b = be64_to_cpu(x->b);
+
+ /* equivalent to gf128mul_table_be[a >> 63] (see crypto/gf128mul.c): */
+ u64 _tt = gf128mul_mask_from_bit(a, 63) & 0x87;
+
+ r->a = cpu_to_be64((a << 1) | (b >> 63));
+ r->b = cpu_to_be64((b << 1) ^ _tt);
+}
+
+/* needed by XTS */
+static inline void gf128mul_x_ble(le128 *r, const le128 *x)
+{
+ u64 a = le64_to_cpu(x->a);
+ u64 b = le64_to_cpu(x->b);
+
+ /* equivalent to gf128mul_table_be[b >> 63] (see crypto/gf128mul.c): */
+ u64 _tt = gf128mul_mask_from_bit(a, 63) & 0x87;
+
+ r->a = cpu_to_le64((a << 1) | (b >> 63));
+ r->b = cpu_to_le64((b << 1) ^ _tt);
+}
+
+void gf128mul_x8_ble(le128 *r, const le128 *x);
+
+/* 64k table optimization, implemented for bbe */
+
+struct gf128mul_64k {
+ struct {
+ be128 t[256];
+ } *t[16];
+};
+
+/* First initialize with the constant factor with which you
+ * want to multiply and then call gf128mul_64k_bbe with the other
+ * factor in the first argument, and the table in the second.
+ * Afterwards, the result is stored in *a.
+ */
+struct gf128mul_64k *gf128mul_init_64k_bbe(const be128 *g);
+void gf128mul_free_64k(struct gf128mul_64k *t);
+void gf128mul_64k_bbe(be128 *a, const struct gf128mul_64k *t);
+
+#endif /* _CRYPTO_GF128MUL_H */
diff --git a/include/crypto/ghash.h b/include/crypto/ghash.h
new file mode 100644
index 000000000..d187e5af9
--- /dev/null
+++ b/include/crypto/ghash.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for the GHASH hash function
+ */
+
+#ifndef __CRYPTO_GHASH_H__
+#define __CRYPTO_GHASH_H__
+
+#define GHASH_BLOCK_SIZE 16
+#define GHASH_DIGEST_SIZE 16
+
+#endif
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
new file mode 100644
index 000000000..e474f8461
--- /dev/null
+++ b/include/crypto/hash.h
@@ -0,0 +1,1047 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Hash: Hash algorithms under the crypto API
+ *
+ * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_HASH_H
+#define _CRYPTO_HASH_H
+
+#include <linux/crypto.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+/* Set this bit for virtual address instead of SG list. */
+#define CRYPTO_AHASH_REQ_VIRT 0x00000001
+
+#define CRYPTO_AHASH_REQ_PRIVATE \
+ CRYPTO_AHASH_REQ_VIRT
+
+struct crypto_ahash;
+
+/**
+ * DOC: Message Digest Algorithm Definitions
+ *
+ * These data structures define modular message digest algorithm
+ * implementations, managed via crypto_register_ahash(),
+ * crypto_register_shash(), crypto_unregister_ahash() and
+ * crypto_unregister_shash().
+ */
+
+/*
+ * struct hash_alg_common - define properties of message digest
+ * @digestsize: Size of the result of the transformation. A buffer of this size
+ * must be available to the @final and @finup calls, so they can
+ * store the resulting hash into it. For various predefined sizes,
+ * search include/crypto/ using
+ * git grep _DIGEST_SIZE include/crypto.
+ * @statesize: Size of the block for partial state of the transformation. A
+ * buffer of this size must be passed to the @export function as it
+ * will save the partial state of the transformation into it. On the
+ * other side, the @import function will load the state from a
+ * buffer of this size as well.
+ * @base: Start of data structure of cipher algorithm. The common data
+ * structure of crypto_alg contains information common to all ciphers.
+ * The hash_alg_common data structure now adds the hash-specific
+ * information.
+ */
+#define HASH_ALG_COMMON { \
+ unsigned int digestsize; \
+ unsigned int statesize; \
+ \
+ struct crypto_alg base; \
+}
+struct hash_alg_common HASH_ALG_COMMON;
+
+struct ahash_request {
+ struct crypto_async_request base;
+
+ unsigned int nbytes;
+ union {
+ struct scatterlist *src;
+ const u8 *svirt;
+ };
+ u8 *result;
+
+ struct scatterlist sg_head[2];
+ crypto_completion_t saved_complete;
+ void *saved_data;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ * struct ahash_alg - asynchronous message digest definition
+ * @init: **[mandatory]** Initialize the transformation context. Intended only to initialize the
+ * state of the HASH transformation at the beginning. This shall fill in
+ * the internal structures used during the entire duration of the whole
+ * transformation. No data processing happens at this point. Driver code
+ * implementation must not use req->result.
+ * @update: **[mandatory]** Push a chunk of data into the driver for transformation. This
+ * function actually pushes blocks of data from upper layers into the
+ * driver, which then passes those to the hardware as seen fit. This
+ * function must not finalize the HASH transformation by calculating the
+ * final message digest as this only adds more data into the
+ * transformation. This function shall not modify the transformation
+ * context, as this function may be called in parallel with the same
+ * transformation object. Data processing can happen synchronously
+ * [SHASH] or asynchronously [AHASH] at this point. Driver must not use
+ * req->result.
+ * For block-only algorithms, @update must return the number
+ * of bytes to store in the API partial block buffer.
+ * @final: **[mandatory]** Retrieve result from the driver. This function finalizes the
+ * transformation and retrieves the resulting hash from the driver and
+ * pushes it back to upper layers. No data processing happens at this
+ * point unless hardware requires it to finish the transformation
+ * (then the data buffered by the device driver is processed).
+ * @finup: **[optional]** Combination of @update and @final. This function is effectively a
+ * combination of @update and @final calls issued in sequence. As some
+ * hardware cannot do @update and @final separately, this callback was
+ * added to allow such hardware to be used at least by IPsec. Data
+ * processing can happen synchronously [SHASH] or asynchronously [AHASH]
+ * at this point.
+ * @digest: Combination of @init and @update and @final. This function
+ * effectively behaves as the entire chain of operations, @init,
+ * @update and @final issued in sequence. Just like @finup, this was
+ * added for hardware which cannot do even the @finup, but can only do
+ * the whole transformation in one run. Data processing can happen
+ * synchronously [SHASH] or asynchronously [AHASH] at this point.
+ * @setkey: Set optional key used by the hashing algorithm. Intended to push
+ * optional key used by the hashing algorithm from upper layers into
+ * the driver. This function can store the key in the transformation
+ * context or can outright program it into the hardware. In the former
+ * case, one must be careful to program the key into the hardware at
+ * appropriate time and one must be careful that .setkey() can be
+ * called multiple times during the existence of the transformation
+ * object. Not all hashing algorithms do implement this function as it
+ * is only needed for keyed message digests. SHAx/MDx/CRCx do NOT
+ * implement this function. HMAC(MDx)/HMAC(SHAx)/CMAC(AES) do implement
+ * this function. This function must be called before any other of the
+ * @init, @update, @final, @finup, @digest is called. No data
+ * processing happens at this point.
+ * @export: Export partial state of the transformation. This function dumps the
+ * entire state of the ongoing transformation into a provided block of
+ * data so it can be @import 'ed back later on. This is useful in case
+ * you want to save partial result of the transformation after
+ * processing certain amount of data and reload this partial result
+ * multiple times later on for multiple re-use. No data processing
+ * happens at this point. Driver must not use req->result.
+ * @import: Import partial state of the transformation. This function loads the
+ * entire state of the ongoing transformation from a provided block of
+ * data so the transformation can continue from this point onward. No
+ * data processing happens at this point. Driver must not use
+ * req->result.
+ * @export_core: Export partial state without partial block. Only defined
+ * for algorithms that are not block-only.
+ * @import_core: Import partial state without partial block. Only defined
+ * for algorithms that are not block-only.
+ * @init_tfm: Initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation
+ * time, right after the transformation context was
+ * allocated. In case the cryptographic hardware has
+ * some special requirements which need to be handled
+ * by software, this function shall check for the precise
+ * requirement of the transformation and put any software
+ * fallbacks in place.
+ * @exit_tfm: Deinitialize the cryptographic transformation object.
+ * This is a counterpart to @init_tfm, used to remove
+ * various changes set in @init_tfm.
+ * @halg: see struct hash_alg_common
+ */
+struct ahash_alg {
+ int (*init)(struct ahash_request *req);
+ int (*update)(struct ahash_request *req);
+ int (*final)(struct ahash_request *req);
+ int (*finup)(struct ahash_request *req);
+ int (*digest)(struct ahash_request *req);
+ int (*export)(struct ahash_request *req, void *out);
+ int (*import)(struct ahash_request *req, const void *in);
+ int (*export_core)(struct ahash_request *req, void *out);
+ int (*import_core)(struct ahash_request *req, const void *in);
+ int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*init_tfm)(struct crypto_ahash *tfm);
+ void (*exit_tfm)(struct crypto_ahash *tfm);
+
+ struct hash_alg_common halg;
+};
+
+struct shash_desc {
+ struct crypto_shash *tfm;
+ void *__ctx[] __aligned(ARCH_SLAB_MINALIGN);
+};
+
+#define HASH_MAX_DIGESTSIZE 64
+
+/*
+ * The size of a core hash state and a partial block. The final byte
+ * is the length of the partial block.
+ */
+#define HASH_STATE_AND_BLOCK(state, block) ((state) + (block) + 1)
+
+
+/* Worst case is sha3-224. */
+#define HASH_MAX_STATESIZE HASH_STATE_AND_BLOCK(200, 144)
+
+/* This needs to match arch/s390/crypto/sha.h. */
+#define S390_SHA_CTX_SIZE 216
+
+/*
+ * Worst case is hmac(sha3-224-s390). Its context is a nested 'shash_desc'
+ * containing a 'struct s390_sha_ctx'.
+ */
+#define SHA3_224_S390_DESCSIZE HASH_STATE_AND_BLOCK(S390_SHA_CTX_SIZE, 144)
+#define HASH_MAX_DESCSIZE (sizeof(struct shash_desc) + \
+ SHA3_224_S390_DESCSIZE)
+#define MAX_SYNC_HASH_REQSIZE (sizeof(struct ahash_request) + \
+ HASH_MAX_DESCSIZE)
+
+#define SHASH_DESC_ON_STACK(shash, ctx) \
+ char __##shash##_desc[sizeof(struct shash_desc) + HASH_MAX_DESCSIZE] \
+ __aligned(__alignof__(struct shash_desc)); \
+ struct shash_desc *shash = (struct shash_desc *)__##shash##_desc
+
+#define HASH_REQUEST_ON_STACK(name, _tfm) \
+ char __##name##_req[sizeof(struct ahash_request) + \
+ MAX_SYNC_HASH_REQSIZE] CRYPTO_MINALIGN_ATTR; \
+ struct ahash_request *name = \
+ ahash_request_on_stack_init(__##name##_req, (_tfm))
+
+#define HASH_REQUEST_CLONE(name, gfp) \
+ hash_request_clone(name, sizeof(__##name##_req), gfp)
+
+#define CRYPTO_HASH_STATESIZE(coresize, blocksize) (coresize + blocksize + 1)
+
+/**
+ * struct shash_alg - synchronous message digest definition
+ * @init: see struct ahash_alg
+ * @update: see struct ahash_alg
+ * @final: see struct ahash_alg
+ * @finup: see struct ahash_alg
+ * @digest: see struct ahash_alg
+ * @export: see struct ahash_alg
+ * @import: see struct ahash_alg
+ * @export_core: see struct ahash_alg
+ * @import_core: see struct ahash_alg
+ * @setkey: see struct ahash_alg
+ * @init_tfm: Initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation
+ * time, right after the transformation context was
+ * allocated. In case the cryptographic hardware has
+ * some special requirements which need to be handled
+ * by software, this function shall check for the precise
+ * requirement of the transformation and put any software
+ * fallbacks in place.
+ * @exit_tfm: Deinitialize the cryptographic transformation object.
+ * This is a counterpart to @init_tfm, used to remove
+ * various changes set in @init_tfm.
+ * @descsize: Size of the operational state for the message digest. This state
+ * size is the memory size that needs to be allocated for
+ * shash_desc.__ctx
+ * @halg: see struct hash_alg_common
+ * @HASH_ALG_COMMON: see struct hash_alg_common
+ */
+struct shash_alg {
+ int (*init)(struct shash_desc *desc);
+ int (*update)(struct shash_desc *desc, const u8 *data,
+ unsigned int len);
+ int (*final)(struct shash_desc *desc, u8 *out);
+ int (*finup)(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+ int (*digest)(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+ int (*export)(struct shash_desc *desc, void *out);
+ int (*import)(struct shash_desc *desc, const void *in);
+ int (*export_core)(struct shash_desc *desc, void *out);
+ int (*import_core)(struct shash_desc *desc, const void *in);
+ int (*setkey)(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*init_tfm)(struct crypto_shash *tfm);
+ void (*exit_tfm)(struct crypto_shash *tfm);
+
+ unsigned int descsize;
+
+ union {
+ struct HASH_ALG_COMMON;
+ struct hash_alg_common halg;
+ };
+};
+#undef HASH_ALG_COMMON
+
+struct crypto_ahash {
+ bool using_shash; /* Underlying algorithm is shash, not ahash */
+ unsigned int statesize;
+ unsigned int reqsize;
+ struct crypto_tfm base;
+};
+
+struct crypto_shash {
+ struct crypto_tfm base;
+};
+
+/**
+ * DOC: Asynchronous Message Digest API
+ *
+ * The asynchronous message digest API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_AHASH (listed as type "ahash" in /proc/crypto)
+ *
+ * The asynchronous cipher operation discussion provided for the
+ * CRYPTO_ALG_TYPE_SKCIPHER API applies here as well.
+ */
+
+static inline bool ahash_req_on_stack(struct ahash_request *req)
+{
+ return crypto_req_on_stack(&req->base);
+}
+
+static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_ahash, base);
+}
+
+/**
+ * crypto_alloc_ahash() - allocate ahash cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * ahash cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an ahash. The returned struct
+ * crypto_ahash is the cipher handle that is required for any subsequent
+ * API invocation for that ahash.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
+ u32 mask);
+
+static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
+{
+ return &tfm->base;
+}
+
+/**
+ * crypto_free_ahash() - zeroize and free the ahash handle
+ * @tfm: cipher handle to be freed
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_ahash(struct crypto_ahash *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_ahash_tfm(tfm));
+}
+
+/**
+ * crypto_has_ahash() - Search for the availability of an ahash.
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * ahash
+ * @type: specifies the type of the ahash
+ * @mask: specifies the mask for the ahash
+ *
+ * Return: true when the ahash is known to the kernel crypto API; false
+ * otherwise
+ */
+int crypto_has_ahash(const char *alg_name, u32 type, u32 mask);
+
+static inline const char *crypto_ahash_alg_name(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_alg_name(crypto_ahash_tfm(tfm));
+}
+
+static inline const char *crypto_ahash_driver_name(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_alg_driver_name(crypto_ahash_tfm(tfm));
+}
+
+/**
+ * crypto_ahash_blocksize() - obtain block size for cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the message digest cipher referenced with the cipher
+ * handle is returned.
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_ahash_blocksize(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+}
+
+static inline struct hash_alg_common *__crypto_hash_alg_common(
+ struct crypto_alg *alg)
+{
+ return container_of(alg, struct hash_alg_common, base);
+}
+
+static inline struct hash_alg_common *crypto_hash_alg_common(
+ struct crypto_ahash *tfm)
+{
+ return __crypto_hash_alg_common(crypto_ahash_tfm(tfm)->__crt_alg);
+}
+
+/**
+ * crypto_ahash_digestsize() - obtain message digest size
+ * @tfm: cipher handle
+ *
+ * The size for the message digest created by the message digest cipher
+ * referenced with the cipher handle is returned.
+ *
+ *
+ * Return: message digest size of cipher
+ */
+static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm)
+{
+ return crypto_hash_alg_common(tfm)->digestsize;
+}
+
+/**
+ * crypto_ahash_statesize() - obtain size of the ahash state
+ * @tfm: cipher handle
+ *
+ * Return the size of the ahash state. With the crypto_ahash_export()
+ * function, the caller can export the state into a buffer whose size is
+ * defined with this function.
+ *
+ * Return: size of the ahash state
+ */
+static inline unsigned int crypto_ahash_statesize(struct crypto_ahash *tfm)
+{
+ return tfm->statesize;
+}
+
+static inline u32 crypto_ahash_get_flags(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_get_flags(crypto_ahash_tfm(tfm));
+}
+
+static inline void crypto_ahash_set_flags(struct crypto_ahash *tfm, u32 flags)
+{
+ crypto_tfm_set_flags(crypto_ahash_tfm(tfm), flags);
+}
+
+static inline void crypto_ahash_clear_flags(struct crypto_ahash *tfm, u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_ahash_tfm(tfm), flags);
+}
+
+/**
+ * crypto_ahash_reqtfm() - obtain cipher handle from request
+ * @req: asynchronous request handle that contains the reference to the ahash
+ * cipher handle
+ *
+ * Return the ahash cipher handle that is registered with the asynchronous
+ * request handle ahash_request.
+ *
+ * Return: ahash cipher handle
+ */
+static inline struct crypto_ahash *crypto_ahash_reqtfm(
+ struct ahash_request *req)
+{
+ return __crypto_ahash_cast(req->base.tfm);
+}
+
+/**
+ * crypto_ahash_reqsize() - obtain size of the request data structure
+ * @tfm: cipher handle
+ *
+ * Return: size of the request data
+ */
+static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm)
+{
+ return tfm->reqsize;
+}
+
+static inline void *ahash_request_ctx(struct ahash_request *req)
+{
+ return req->__ctx;
+}
+
+/**
+ * crypto_ahash_setkey - set key for cipher handle
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the ahash cipher. The cipher
+ * handle must point to a keyed hash in order for this function to succeed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen);
+
+/**
+ * crypto_ahash_finup() - update and finalize message digest
+ * @req: reference to the ahash_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * This function is a "short-hand" for the function calls of
+ * crypto_ahash_update and crypto_ahash_final. The parameters have the same
+ * meaning as discussed for those separate functions.
+ *
+ * Return: see crypto_ahash_final()
+ */
+int crypto_ahash_finup(struct ahash_request *req);
+
+/**
+ * crypto_ahash_final() - calculate message digest
+ * @req: reference to the ahash_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Finalize the message digest operation and create the message digest
+ * based on all data added to the cipher handle. The message digest is placed
+ * into the output buffer registered with the ahash_request handle.
+ *
+ * Return:
+ * 0 if the message digest was successfully calculated;
+ * -EINPROGRESS if data is fed into hardware (DMA) or queued for later;
+ * -EBUSY if queue is full and request should be resubmitted later;
+ * other < 0 if an error occurred
+ */
+static inline int crypto_ahash_final(struct ahash_request *req)
+{
+ req->nbytes = 0;
+ return crypto_ahash_finup(req);
+}
+
+/**
+ * crypto_ahash_digest() - calculate message digest for a buffer
+ * @req: reference to the ahash_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * This function is a "short-hand" for the function calls of crypto_ahash_init,
+ * crypto_ahash_update and crypto_ahash_final. The parameters have the same
+ * meaning as discussed for those separate three functions.
+ *
+ * Return: see crypto_ahash_final()
+ */
+int crypto_ahash_digest(struct ahash_request *req);
+
+/**
+ * crypto_ahash_export() - extract current message digest state
+ * @req: reference to the ahash_request handle whose state is exported
+ * @out: output buffer of sufficient size that can hold the hash state
+ *
+ * This function exports the hash state of the ahash_request handle into the
+ * caller-allocated output buffer out which must have sufficient size (e.g. by
+ * calling crypto_ahash_statesize()).
+ *
+ * Return: 0 if the export was successful; < 0 if an error occurred
+ */
+int crypto_ahash_export(struct ahash_request *req, void *out);
+
+/**
+ * crypto_ahash_import() - import message digest state
+ * @req: reference to ahash_request handle the state is imported into
+ * @in: buffer holding the state
+ *
+ * This function imports the hash state into the ahash_request handle from the
+ * input buffer. That buffer should have been generated with the
+ * crypto_ahash_export function.
+ *
+ * Return: 0 if the import was successful; < 0 if an error occurred
+ */
+int crypto_ahash_import(struct ahash_request *req, const void *in);
+
+/**
+ * crypto_ahash_init() - (re)initialize message digest handle
+ * @req: ahash_request handle that already is initialized with all necessary
+ * data using the ahash_request_* API functions
+ *
+ * The call (re-)initializes the message digest referenced by the ahash_request
+ * handle. Any potentially existing state created by previous operations is
+ * discarded.
+ *
+ * Return: see crypto_ahash_final()
+ */
+int crypto_ahash_init(struct ahash_request *req);
+
+/**
+ * crypto_ahash_update() - add data to message digest for processing
+ * @req: ahash_request handle that was previously initialized with the
+ * crypto_ahash_init call.
+ *
+ * Updates the message digest state of the &ahash_request handle. The input data
+ * is pointed to by the scatter/gather list registered in the &ahash_request
+ * handle
+ *
+ * Return: see crypto_ahash_final()
+ */
+int crypto_ahash_update(struct ahash_request *req);
+
+/**
+ * DOC: Asynchronous Hash Request Handle
+ *
+ * The &ahash_request data structure contains all pointers to data
+ * required for the asynchronous cipher operation. This includes the cipher
+ * handle (which can be used by multiple &ahash_request instances), pointer
+ * to plaintext and the message digest output buffer, asynchronous callback
+ * function, etc. It acts as a handle to the ahash_request_* API calls in a
+ * similar way as ahash handle to the crypto_ahash_* API calls.
+ */
+
+/**
+ * ahash_request_set_tfm() - update cipher handle reference in request
+ * @req: request handle to be modified
+ * @tfm: cipher handle that shall be added to the request handle
+ *
+ * Allow the caller to replace the existing ahash handle in the request
+ * data structure with a different one.
+ */
+static inline void ahash_request_set_tfm(struct ahash_request *req,
+ struct crypto_ahash *tfm)
+{
+ crypto_request_set_tfm(&req->base, crypto_ahash_tfm(tfm));
+}
+
+/**
+ * ahash_request_alloc() - allocate request data structure
+ * @tfm: cipher handle to be registered with the request
+ * @gfp: memory allocation flag that is handed to kmalloc by the API call.
+ *
+ * Allocate the request data structure that must be used with the ahash
+ * message digest API calls. During
+ * the allocation, the provided ahash handle
+ * is registered in the request data structure.
+ *
+ * Return: allocated request handle in case of success, or NULL if out of memory
+ */
+static inline struct ahash_request *ahash_request_alloc_noprof(
+ struct crypto_ahash *tfm, gfp_t gfp)
+{
+ struct ahash_request *req;
+
+ req = kmalloc_noprof(sizeof(struct ahash_request) +
+ crypto_ahash_reqsize(tfm), gfp);
+
+ if (likely(req))
+ ahash_request_set_tfm(req, tfm);
+
+ return req;
+}
+#define ahash_request_alloc(...) alloc_hooks(ahash_request_alloc_noprof(__VA_ARGS__))
+
+/**
+ * ahash_request_free() - zeroize and free the request data structure
+ * @req: request data structure cipher handle to be freed
+ */
+void ahash_request_free(struct ahash_request *req);
+
+static inline void ahash_request_zero(struct ahash_request *req)
+{
+ memzero_explicit(req, sizeof(*req) +
+ crypto_ahash_reqsize(crypto_ahash_reqtfm(req)));
+}
+
+static inline struct ahash_request *ahash_request_cast(
+ struct crypto_async_request *req)
+{
+ return container_of(req, struct ahash_request, base);
+}
+
+/**
+ * ahash_request_set_callback() - set asynchronous callback function
+ * @req: request handle
+ * @flags: specify zero or an ORing of the flags
+ * CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
+ * increase the wait queue beyond the initial maximum size;
+ * CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
+ * @compl: callback function pointer to be registered with the request handle
+ * @data: The data pointer refers to memory that is not used by the kernel
+ * crypto API, but provided to the callback function for it to use. Here,
+ * the caller can provide a reference to memory the callback function can
+ * operate on. As the callback function is invoked asynchronously to the
+ * related functionality, it may need to access data structures of the
+ * related functionality which can be referenced using this pointer. The
+ * callback function can access the memory via the "data" field in the
+ * &crypto_async_request data structure provided to the callback function.
+ *
+ * This function allows setting the callback function that is triggered once
+ * the cipher operation completes.
+ *
+ * The callback function is registered with the &ahash_request handle and
+ * must comply with the following template::
+ *
+ * void callback_function(struct crypto_async_request *req, int error)
+ */
+static inline void ahash_request_set_callback(struct ahash_request *req,
+ u32 flags,
+ crypto_completion_t compl,
+ void *data)
+{
+ flags &= ~CRYPTO_AHASH_REQ_PRIVATE;
+ flags |= req->base.flags & CRYPTO_AHASH_REQ_PRIVATE;
+ crypto_request_set_callback(&req->base, flags, compl, data);
+}
+
+/**
+ * ahash_request_set_crypt() - set data buffers
+ * @req: ahash_request handle to be updated
+ * @src: source scatter/gather list
+ * @result: buffer that is filled with the message digest -- the caller must
+ * ensure that the buffer has sufficient space by, for example, calling
+ * crypto_ahash_digestsize()
+ * @nbytes: number of bytes to process from the source scatter/gather list
+ *
+ * By using this call, the caller references the source scatter/gather list.
+ * The source scatter/gather list points to the data the message digest is to
+ * be calculated for.
+ */
+static inline void ahash_request_set_crypt(struct ahash_request *req,
+ struct scatterlist *src, u8 *result,
+ unsigned int nbytes)
+{
+ req->src = src;
+ req->nbytes = nbytes;
+ req->result = result;
+ req->base.flags &= ~CRYPTO_AHASH_REQ_VIRT;
+}
+
+/**
+ * ahash_request_set_virt() - set virtual address data buffers
+ * @req: ahash_request handle to be updated
+ * @src: source virtual address
+ * @result: buffer that is filled with the message digest -- the caller must
+ * ensure that the buffer has sufficient space by, for example, calling
+ * crypto_ahash_digestsize()
+ * @nbytes: number of bytes to process from the source virtual address
+ *
+ * By using this call, the caller references the source virtual address.
+ * The source virtual address points to the data the message digest is to
+ * be calculated for.
+ */
+static inline void ahash_request_set_virt(struct ahash_request *req,
+ const u8 *src, u8 *result,
+ unsigned int nbytes)
+{
+ req->svirt = src;
+ req->nbytes = nbytes;
+ req->result = result;
+ req->base.flags |= CRYPTO_AHASH_REQ_VIRT;
+}
+
+/**
+ * DOC: Synchronous Message Digest API
+ *
+ * The synchronous message digest API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_SHASH (listed as type "shash" in /proc/crypto)
+ *
+ * The message digest API is able to maintain state information for the
+ * caller.
+ *
+ * The synchronous message digest API can store user-related context in its
+ * shash_desc request data structure.
+ */
+
+/**
+ * crypto_alloc_shash() - allocate message digest handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * message digest cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a message digest. The returned &struct
+ * crypto_shash is the cipher handle that is required for any subsequent
+ * API invocation for that message digest.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type,
+ u32 mask);
+
+int crypto_has_shash(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_shash_tfm(struct crypto_shash *tfm)
+{
+ return &tfm->base;
+}
+
+/**
+ * crypto_free_shash() - zeroize and free the message digest handle
+ * @tfm: cipher handle to be freed
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_shash(struct crypto_shash *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_shash_tfm(tfm));
+}
+
+static inline const char *crypto_shash_alg_name(struct crypto_shash *tfm)
+{
+ return crypto_tfm_alg_name(crypto_shash_tfm(tfm));
+}
+
+static inline const char *crypto_shash_driver_name(struct crypto_shash *tfm)
+{
+ return crypto_tfm_alg_driver_name(crypto_shash_tfm(tfm));
+}
+
+/**
+ * crypto_shash_blocksize() - obtain block size for cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the message digest cipher referenced with the cipher
+ * handle is returned.
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_shash_blocksize(struct crypto_shash *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_shash_tfm(tfm));
+}
+
+static inline struct shash_alg *__crypto_shash_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct shash_alg, base);
+}
+
+static inline struct shash_alg *crypto_shash_alg(struct crypto_shash *tfm)
+{
+ return __crypto_shash_alg(crypto_shash_tfm(tfm)->__crt_alg);
+}
+
+/**
+ * crypto_shash_digestsize() - obtain message digest size
+ * @tfm: cipher handle
+ *
+ * The size for the message digest created by the message digest cipher
+ * referenced with the cipher handle is returned.
+ *
+ * Return: digest size of cipher
+ */
+static inline unsigned int crypto_shash_digestsize(struct crypto_shash *tfm)
+{
+ return crypto_shash_alg(tfm)->digestsize;
+}
+
+static inline unsigned int crypto_shash_statesize(struct crypto_shash *tfm)
+{
+ return crypto_shash_alg(tfm)->statesize;
+}
+
+static inline u32 crypto_shash_get_flags(struct crypto_shash *tfm)
+{
+ return crypto_tfm_get_flags(crypto_shash_tfm(tfm));
+}
+
+static inline void crypto_shash_set_flags(struct crypto_shash *tfm, u32 flags)
+{
+ crypto_tfm_set_flags(crypto_shash_tfm(tfm), flags);
+}
+
+static inline void crypto_shash_clear_flags(struct crypto_shash *tfm, u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_shash_tfm(tfm), flags);
+}
+
+/**
+ * crypto_shash_descsize() - obtain the operational state size
+ * @tfm: cipher handle
+ *
+ * The size of the operational state the cipher needs during operation is
+ * returned for the hash referenced with the cipher handle. This size is
+ * required to calculate the memory requirements to allow the caller allocating
+ * sufficient memory for operational state.
+ *
+ * The operational state is defined with struct shash_desc where the size of
+ * that data structure is to be calculated as
+ * sizeof(struct shash_desc) + crypto_shash_descsize(alg)
+ *
+ * Return: size of the operational state
+ */
+static inline unsigned int crypto_shash_descsize(struct crypto_shash *tfm)
+{
+ return crypto_shash_alg(tfm)->descsize;
+}
+
+static inline void *shash_desc_ctx(struct shash_desc *desc)
+{
+ return desc->__ctx;
+}
+
+/**
+ * crypto_shash_setkey() - set key for message digest
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the keyed message digest cipher. The
+ * cipher handle must point to a keyed message digest cipher in order for this
+ * function to succeed.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen);
+
+/**
+ * crypto_shash_digest() - calculate message digest for buffer
+ * @desc: see crypto_shash_final()
+ * @data: see crypto_shash_update()
+ * @len: see crypto_shash_update()
+ * @out: see crypto_shash_final()
+ *
+ * This function is a "short-hand" for the function calls of crypto_shash_init,
+ * crypto_shash_update and crypto_shash_final. The parameters have the same
+ * meaning as discussed for those separate three functions.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
+int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+
+/**
+ * crypto_shash_tfm_digest() - calculate message digest for buffer
+ * @tfm: hash transformation object
+ * @data: see crypto_shash_update()
+ * @len: see crypto_shash_update()
+ * @out: see crypto_shash_final()
+ *
+ * This is a simplified version of crypto_shash_digest() for users who don't
+ * want to allocate their own hash descriptor (shash_desc). Instead,
+ * crypto_shash_tfm_digest() takes a hash transformation object (crypto_shash)
+ * directly, and it allocates a hash descriptor on the stack internally.
+ * Note that this stack allocation may be fairly large.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 on success; < 0 if an error occurred.
+ */
+int crypto_shash_tfm_digest(struct crypto_shash *tfm, const u8 *data,
+ unsigned int len, u8 *out);
+
+int crypto_hash_digest(struct crypto_ahash *tfm, const u8 *data,
+ unsigned int len, u8 *out);
+
+/**
+ * crypto_shash_export() - extract operational state for message digest
+ * @desc: reference to the operational state handle whose state is exported
+ * @out: output buffer of sufficient size that can hold the hash state
+ *
+ * This function exports the hash state of the operational state handle into the
+ * caller-allocated output buffer out which must have sufficient size (e.g. by
+ * calling crypto_shash_descsize).
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the export creation was successful; < 0 if an error occurred
+ */
+int crypto_shash_export(struct shash_desc *desc, void *out);
+
+/**
+ * crypto_shash_import() - import operational state
+ * @desc: reference to the operational state handle the state imported into
+ * @in: buffer holding the state
+ *
+ * This function imports the hash state into the operational state handle from
+ * the input buffer. That buffer should have been generated with the
+ * crypto_ahash_export function.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the import was successful; < 0 if an error occurred
+ */
+int crypto_shash_import(struct shash_desc *desc, const void *in);
+
+/**
+ * crypto_shash_init() - (re)initialize message digest
+ * @desc: operational state handle that is already filled
+ *
+ * The call (re-)initializes the message digest referenced by the
+ * operational state handle. Any potentially existing state created by
+ * previous operations is discarded.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the message digest initialization was successful; < 0 if an
+ * error occurred
+ */
+int crypto_shash_init(struct shash_desc *desc);
+
+/**
+ * crypto_shash_finup() - calculate message digest of buffer
+ * @desc: see crypto_shash_final()
+ * @data: see crypto_shash_update()
+ * @len: see crypto_shash_update()
+ * @out: see crypto_shash_final()
+ *
+ * This function is a "short-hand" for the function calls of
+ * crypto_shash_update and crypto_shash_final. The parameters have the same
+ * meaning as discussed for those separate functions.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
+int crypto_shash_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+
+/**
+ * crypto_shash_update() - add data to message digest for processing
+ * @desc: operational state handle that is already initialized
+ * @data: input data to be added to the message digest
+ * @len: length of the input data
+ *
+ * Updates the message digest state of the operational state handle.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the message digest update was successful; < 0 if an error
+ * occurred
+ */
+static inline int crypto_shash_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return crypto_shash_finup(desc, data, len, NULL);
+}
+
+/**
+ * crypto_shash_final() - calculate message digest
+ * @desc: operational state handle that is already filled with data
+ * @out: output buffer filled with the message digest
+ *
+ * Finalize the message digest operation and create the message digest
+ * based on all data added to the cipher handle. The message digest is placed
+ * into the output buffer. The caller must ensure that the output buffer is
+ * large enough by using crypto_shash_digestsize.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
+static inline int crypto_shash_final(struct shash_desc *desc, u8 *out)
+{
+ return crypto_shash_finup(desc, NULL, 0, out);
+}
+
+static inline void shash_desc_zero(struct shash_desc *desc)
+{
+ memzero_explicit(desc,
+ sizeof(*desc) + crypto_shash_descsize(desc->tfm));
+}
+
+static inline bool ahash_is_async(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_is_async(&tfm->base);
+}
+
+static inline struct ahash_request *ahash_request_on_stack_init(
+ char *buf, struct crypto_ahash *tfm)
+{
+ struct ahash_request *req = (void *)buf;
+
+ crypto_stack_request_init(&req->base, crypto_ahash_tfm(tfm));
+ return req;
+}
+
+static inline struct ahash_request *ahash_request_clone(
+ struct ahash_request *req, size_t total, gfp_t gfp)
+{
+ return container_of(crypto_request_clone(&req->base, total, gfp),
+ struct ahash_request, base);
+}
+
+#endif /* _CRYPTO_HASH_H */
diff --git a/include/crypto/hash_info.h b/include/crypto/hash_info.h
new file mode 100644
index 000000000..d6927739f
--- /dev/null
+++ b/include/crypto/hash_info.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Hash Info: Hash algorithms information
+ *
+ * Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
+ */
+
+#ifndef _CRYPTO_HASH_INFO_H
+#define _CRYPTO_HASH_INFO_H
+
+#include <crypto/sha1.h>
+#include <crypto/sha2.h>
+#include <crypto/sha3.h>
+#include <crypto/md5.h>
+#include <crypto/streebog.h>
+
+#include <uapi/linux/hash_info.h>
+
+/* not defined in include/crypto/ */
+#define RMD128_DIGEST_SIZE 16
+#define RMD160_DIGEST_SIZE 20
+#define RMD256_DIGEST_SIZE 32
+#define RMD320_DIGEST_SIZE 40
+
+/* not defined in include/crypto/ */
+#define WP512_DIGEST_SIZE 64
+#define WP384_DIGEST_SIZE 48
+#define WP256_DIGEST_SIZE 32
+
+/* not defined in include/crypto/ */
+#define TGR128_DIGEST_SIZE 16
+#define TGR160_DIGEST_SIZE 20
+#define TGR192_DIGEST_SIZE 24
+
+/* not defined in include/crypto/ */
+#define SM3256_DIGEST_SIZE 32
+
+extern const char *const hash_algo_name[HASH_ALGO__LAST];
+extern const int hash_digest_size[HASH_ALGO__LAST];
+
+#endif /* _CRYPTO_HASH_INFO_H */
diff --git a/include/crypto/hmac.h b/include/crypto/hmac.h
new file mode 100644
index 000000000..66774132a
--- /dev/null
+++ b/include/crypto/hmac.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_HMAC_H
+#define _CRYPTO_HMAC_H
+
+#define HMAC_IPAD_VALUE 0x36
+#define HMAC_OPAD_VALUE 0x5c
+
+#endif /* _CRYPTO_HMAC_H */
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
new file mode 100644
index 000000000..0d51428c1
--- /dev/null
+++ b/include/crypto/if_alg.h
@@ -0,0 +1,274 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * if_alg: User-space algorithm interface
+ *
+ * Copyright (c) 2010 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_IF_ALG_H
+#define _CRYPTO_IF_ALG_H
+
+#include <linux/bits.h>
+#include <linux/compiler.h>
+#include <linux/completion.h>
+#include <linux/if_alg.h>
+#include <linux/scatterlist.h>
+#include <linux/types.h>
+#include <linux/atomic.h>
+#include <net/sock.h>
+
+#include <crypto/aead.h>
+#include <crypto/skcipher.h>
+
+#define ALG_MAX_PAGES 16
+
+struct alg_sock {
+ /* struct sock must be the first member of struct alg_sock */
+ struct sock sk;
+
+ struct sock *parent;
+
+ atomic_t refcnt;
+ atomic_t nokey_refcnt;
+
+ const struct af_alg_type *type;
+ void *private;
+};
+
+struct af_alg_control {
+ struct af_alg_iv *iv;
+ int op;
+ unsigned int aead_assoclen;
+};
+
+struct af_alg_type {
+ void *(*bind)(const char *name);
+ void (*release)(void *private);
+ int (*setkey)(void *private, const u8 *key, unsigned int keylen);
+ int (*setentropy)(void *private, sockptr_t entropy, unsigned int len);
+ int (*accept)(void *private, struct sock *sk);
+ int (*accept_nokey)(void *private, struct sock *sk);
+ int (*setauthsize)(void *private, unsigned int authsize);
+
+ struct proto_ops *ops;
+ struct proto_ops *ops_nokey;
+ struct module *owner;
+ char name[14];
+};
+
+struct af_alg_sgl {
+ struct sg_table sgt;
+ struct scatterlist sgl[ALG_MAX_PAGES + 1];
+ bool need_unpin;
+};
+
+/* TX SGL entry */
+struct af_alg_tsgl {
+ struct list_head list;
+ unsigned int cur; /* Last processed SG entry */
+ struct scatterlist sg[]; /* Array of SGs forming the SGL */
+};
+
+#define MAX_SGL_ENTS ((4096 - sizeof(struct af_alg_tsgl)) / \
+ sizeof(struct scatterlist) - 1)
+
+/* RX SGL entry */
+struct af_alg_rsgl {
+ struct af_alg_sgl sgl;
+ struct list_head list;
+ size_t sg_num_bytes; /* Bytes of data in that SGL */
+};
+
+/**
+ * struct af_alg_async_req - definition of crypto request
+ * @sk: Socket the request is associated with
+ * @first_rsgl: First RX SG
+ * @last_rsgl: Pointer to last RX SG
+ * @rsgl_list: Track RX SGs
+ * @tsgl: Private, per request TX SGL of buffers to process
+ * @tsgl_entries: Number of entries in priv. TX SGL
+ * @outlen: Number of output bytes generated by crypto op
+ * @areqlen: Length of this data structure
+ * @cra_u: Cipher request
+ */
+struct af_alg_async_req {
+ struct sock *sk;
+
+ struct af_alg_rsgl first_rsgl;
+ struct af_alg_rsgl *last_rsgl;
+ struct list_head rsgl_list;
+
+ struct scatterlist *tsgl;
+ unsigned int tsgl_entries;
+
+ unsigned int outlen;
+ unsigned int areqlen;
+
+ union {
+ struct aead_request aead_req;
+ struct skcipher_request skcipher_req;
+ } cra_u;
+
+ /* req ctx trails this struct */
+};
+
+/**
+ * struct af_alg_ctx - definition of the crypto context
+ *
+ * The crypto context tracks the input data during the lifetime of an AF_ALG
+ * socket.
+ *
+ * @tsgl_list: Link to TX SGL
+ * @iv: IV for cipher operation
+ * @state: Existing state for continuing operation
+ * @aead_assoclen: Length of AAD for AEAD cipher operations
+ * @wait: For waiting for completion of async crypto ops
+ * @used: TX bytes sent to kernel. This variable is used to
+ * ensure that user space cannot cause the kernel
+ * to allocate too much memory in sendmsg operation.
+ * @rcvused: Total RX bytes to be filled by kernel. This variable
+ * is used to ensure user space cannot cause the kernel
+ * to allocate too much memory in a recvmsg operation.
+ * @more: More data to be expected from user space?
+ * @merge: Shall new data from user space be merged into existing
+ * SG?
+ * @enc: Cryptographic operation to be performed when
+ * recvmsg is invoked.
+ * @write: True if we are in the middle of a write.
+ * @init: True if metadata has been sent.
+ * @len: Length of memory allocated for this data structure.
+ * @inflight: Non-zero when requests are in flight, for debugging only.
+ */
+struct af_alg_ctx {
+ struct list_head tsgl_list;
+
+ void *iv;
+ void *state;
+ size_t aead_assoclen;
+
+ struct crypto_wait wait;
+
+ size_t used;
+ atomic_t rcvused;
+
+ bool more:1,
+ merge:1,
+ enc:1,
+ write:1,
+ init:1;
+
+ unsigned int len;
+
+ unsigned int inflight;
+};
+
+/* Flags for af_alg_allowlist_entry::flags: */
+#define AF_ALG_UNPRIVILEGED BIT(0) /* Unprivileged use is allowed */
+
+struct af_alg_allowlist_entry {
+ const char *name;
+ u32 flags;
+};
+
+int af_alg_register_type(const struct af_alg_type *type);
+int af_alg_unregister_type(const struct af_alg_type *type);
+
+int af_alg_check_restriction(const char *name,
+ const struct af_alg_allowlist_entry allowlist[]);
+
+int af_alg_release(struct socket *sock);
+void af_alg_release_parent(struct sock *sk);
+int af_alg_accept(struct sock *sk, struct socket *newsock,
+ struct proto_accept_arg *arg);
+
+void af_alg_free_sg(struct af_alg_sgl *sgl);
+
+static inline struct alg_sock *alg_sk(struct sock *sk)
+{
+ return (struct alg_sock *)sk;
+}
+
+/**
+ * af_alg_sndbuf - Size of available buffer for sending data from user space to kernel.
+ *
+ * @sk: socket of connection to user space
+ *
+ * Returns: number of bytes still available
+ */
+static inline int af_alg_sndbuf(struct sock *sk)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+
+ return max_t(int, max_t(int, sk->sk_sndbuf & PAGE_MASK, PAGE_SIZE) -
+ ctx->used, 0);
+}
+
+/**
+ * af_alg_writable - Can the send buffer still be written to?
+ *
+ * @sk: socket of connection to user space
+ *
+ * Returns: true => writable, false => not writable
+ */
+static inline bool af_alg_writable(struct sock *sk)
+{
+ return PAGE_SIZE <= af_alg_sndbuf(sk);
+}
+
+/**
+ * af_alg_rcvbuf - Size of available buffer used by kernel for the RX user space operation.
+ *
+ * @sk: socket of connection to user space
+ *
+ * Returns: number of bytes still available
+ */
+static inline int af_alg_rcvbuf(struct sock *sk)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+
+ return max_t(int, max_t(int, sk->sk_rcvbuf & PAGE_MASK, PAGE_SIZE) -
+ atomic_read(&ctx->rcvused), 0);
+}
+
+/**
+ * af_alg_readable - Can the RX buffer still be read from?
+ *
+ * @sk: socket of connection to user space
+ *
+ * Returns: true => readable, false => not readable
+ */
+static inline bool af_alg_readable(struct sock *sk)
+{
+ return PAGE_SIZE <= af_alg_rcvbuf(sk);
+}
+
+unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes);
+void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst);
+void af_alg_wmem_wakeup(struct sock *sk);
+int af_alg_wait_for_data(struct sock *sk, unsigned flags, unsigned min);
+int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
+ unsigned int ivsize);
+void af_alg_free_resources(struct af_alg_async_req *areq);
+__poll_t af_alg_poll(struct file *file, struct socket *sock,
+ poll_table *wait);
+struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk,
+ unsigned int areqlen);
+int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags,
+ struct af_alg_async_req *areq, size_t maxsize,
+ size_t *outlen);
+
+/*
+ * Mask used to disable unsupported algorithm implementations.
+ *
+ * This is the same as FSCRYPT_CRYPTOAPI_MASK in fs/crypto/fscrypt_private.h.
+ * In additions to the motivations there, this API is exposed to userspace
+ * that might not be fully trusted.
+ */
+#define AF_ALG_CRYPTOAPI_MASK \
+ (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | \
+ CRYPTO_ALG_KERN_DRIVER_ONLY)
+
+
+#endif /* _CRYPTO_IF_ALG_H */
diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h
new file mode 100644
index 000000000..9cd37df32
--- /dev/null
+++ b/include/crypto/internal/acompress.h
@@ -0,0 +1,246 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Asynchronous Compression operations
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Weigang Li <weigang.li@intel.com>
+ * Giovanni Cabiddu <giovanni.cabiddu@intel.com>
+ */
+#ifndef _CRYPTO_ACOMP_INT_H
+#define _CRYPTO_ACOMP_INT_H
+
+#include <crypto/acompress.h>
+#include <crypto/algapi.h>
+#include <crypto/scatterwalk.h>
+#include <linux/compiler_types.h>
+#include <linux/cpumask_types.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue_types.h>
+
+#define ACOMP_FBREQ_ON_STACK(name, req) \
+ char __##name##_req[sizeof(struct acomp_req) + \
+ MAX_SYNC_COMP_REQSIZE] CRYPTO_MINALIGN_ATTR; \
+ struct acomp_req *name = acomp_fbreq_on_stack_init( \
+ __##name##_req, (req))
+
+/**
+ * struct acomp_alg - asynchronous compression algorithm
+ *
+ * @compress: Function performs a compress operation
+ * @decompress: Function performs a de-compress operation
+ * @init: Initialize the cryptographic transformation object.
+ * This function is used to initialize the cryptographic
+ * transformation object. This function is called only once at
+ * the instantiation time, right after the transformation context
+ * was allocated. In case the cryptographic hardware has some
+ * special requirements which need to be handled by software, this
+ * function shall check for the precise requirement of the
+ * transformation and put any software fallbacks in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
+ *
+ * @base: Common crypto API algorithm data structure
+ * @calg: Cmonn algorithm data structure shared with scomp
+ * @COMP_ALG_COMMON: see struct comp_alg_common
+ */
+struct acomp_alg {
+ int (*compress)(struct acomp_req *req);
+ int (*decompress)(struct acomp_req *req);
+ int (*init)(struct crypto_acomp *tfm);
+ void (*exit)(struct crypto_acomp *tfm);
+
+ union {
+ struct COMP_ALG_COMMON;
+ struct comp_alg_common calg;
+ };
+};
+
+struct crypto_acomp_stream {
+ spinlock_t lock;
+ void *ctx;
+};
+
+struct crypto_acomp_streams {
+ /* These must come first because of struct scomp_alg. */
+ void *(*alloc_ctx)(void);
+ void (*free_ctx)(void *);
+
+ struct crypto_acomp_stream __percpu *streams;
+ struct work_struct stream_work;
+ cpumask_t stream_want;
+};
+
+struct acomp_walk {
+ union {
+ /* Virtual address of the source. */
+ struct {
+ struct {
+ const void *const addr;
+ } virt;
+ } src;
+
+ /* Private field for the API, do not use. */
+ struct scatter_walk in;
+ };
+
+ union {
+ /* Virtual address of the destination. */
+ struct {
+ struct {
+ void *const addr;
+ } virt;
+ } dst;
+
+ /* Private field for the API, do not use. */
+ struct scatter_walk out;
+ };
+
+ unsigned int slen;
+ unsigned int dlen;
+
+ int flags;
+};
+
+/*
+ * Transform internal helpers.
+ */
+static inline void *acomp_request_ctx(struct acomp_req *req)
+{
+ return req->__ctx;
+}
+
+static inline void *acomp_tfm_ctx(struct crypto_acomp *tfm)
+{
+ return tfm->base.__crt_ctx;
+}
+
+static inline void acomp_request_complete(struct acomp_req *req,
+ int err)
+{
+ crypto_request_complete(&req->base, err);
+}
+
+/**
+ * crypto_register_acomp() -- Register asynchronous compression algorithm
+ *
+ * Function registers an implementation of an asynchronous
+ * compression algorithm
+ *
+ * @alg: algorithm definition
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_register_acomp(struct acomp_alg *alg);
+
+/**
+ * crypto_unregister_acomp() -- Unregister asynchronous compression algorithm
+ *
+ * Function unregisters an implementation of an asynchronous
+ * compression algorithm
+ *
+ * @alg: algorithm definition
+ */
+void crypto_unregister_acomp(struct acomp_alg *alg);
+
+int crypto_register_acomps(struct acomp_alg *algs, int count);
+void crypto_unregister_acomps(struct acomp_alg *algs, int count);
+
+static inline bool acomp_request_issg(struct acomp_req *req)
+{
+ return !(req->base.flags & (CRYPTO_ACOMP_REQ_SRC_VIRT |
+ CRYPTO_ACOMP_REQ_DST_VIRT));
+}
+
+static inline bool acomp_request_src_isvirt(struct acomp_req *req)
+{
+ return req->base.flags & CRYPTO_ACOMP_REQ_SRC_VIRT;
+}
+
+static inline bool acomp_request_dst_isvirt(struct acomp_req *req)
+{
+ return req->base.flags & CRYPTO_ACOMP_REQ_DST_VIRT;
+}
+
+static inline bool acomp_request_isvirt(struct acomp_req *req)
+{
+ return req->base.flags & (CRYPTO_ACOMP_REQ_SRC_VIRT |
+ CRYPTO_ACOMP_REQ_DST_VIRT);
+}
+
+static inline bool acomp_request_src_isnondma(struct acomp_req *req)
+{
+ return req->base.flags & CRYPTO_ACOMP_REQ_SRC_NONDMA;
+}
+
+static inline bool acomp_request_dst_isnondma(struct acomp_req *req)
+{
+ return req->base.flags & CRYPTO_ACOMP_REQ_DST_NONDMA;
+}
+
+static inline bool acomp_request_isnondma(struct acomp_req *req)
+{
+ return req->base.flags & (CRYPTO_ACOMP_REQ_SRC_NONDMA |
+ CRYPTO_ACOMP_REQ_DST_NONDMA);
+}
+
+static inline bool crypto_acomp_req_virt(struct crypto_acomp *tfm)
+{
+ return crypto_tfm_req_virt(&tfm->base);
+}
+
+void crypto_acomp_free_streams(struct crypto_acomp_streams *s);
+int crypto_acomp_alloc_streams(struct crypto_acomp_streams *s);
+
+#define crypto_acomp_lock_stream_bh(...) __acquire_ret(_crypto_acomp_lock_stream_bh(__VA_ARGS__), &__ret->lock);
+struct crypto_acomp_stream *_crypto_acomp_lock_stream_bh(
+ struct crypto_acomp_streams *s) __acquires_ret;
+
+static inline void crypto_acomp_unlock_stream_bh(
+ struct crypto_acomp_stream *stream) __releases(&stream->lock)
+{
+ spin_unlock_bh(&stream->lock);
+}
+
+void acomp_walk_done_src(struct acomp_walk *walk, int used);
+void acomp_walk_done_dst(struct acomp_walk *walk, int used);
+int acomp_walk_next_src(struct acomp_walk *walk);
+int acomp_walk_next_dst(struct acomp_walk *walk);
+int acomp_walk_virt(struct acomp_walk *__restrict walk,
+ struct acomp_req *__restrict req, bool atomic);
+
+static inline bool acomp_walk_more_src(const struct acomp_walk *walk, int cur)
+{
+ return walk->slen != cur;
+}
+
+static inline u32 acomp_request_flags(struct acomp_req *req)
+{
+ return crypto_request_flags(&req->base) & ~CRYPTO_ACOMP_REQ_PRIVATE;
+}
+
+static inline struct crypto_acomp *crypto_acomp_fb(struct crypto_acomp *tfm)
+{
+ return __crypto_acomp_tfm(crypto_acomp_tfm(tfm)->fb);
+}
+
+static inline struct acomp_req *acomp_fbreq_on_stack_init(
+ char *buf, struct acomp_req *old)
+{
+ struct crypto_acomp *tfm = crypto_acomp_reqtfm(old);
+ struct acomp_req *req = (void *)buf;
+
+ crypto_stack_request_init(&req->base,
+ crypto_acomp_tfm(crypto_acomp_fb(tfm)));
+ acomp_request_set_callback(req, acomp_request_flags(old), NULL, NULL);
+ req->base.flags &= ~CRYPTO_ACOMP_REQ_PRIVATE;
+ req->base.flags |= old->base.flags & CRYPTO_ACOMP_REQ_PRIVATE;
+ req->src = old->src;
+ req->dst = old->dst;
+ req->slen = old->slen;
+ req->dlen = old->dlen;
+
+ return req;
+}
+
+#endif
diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h
new file mode 100644
index 000000000..28a95eb31
--- /dev/null
+++ b/include/crypto/internal/aead.h
@@ -0,0 +1,168 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * AEAD: Authenticated Encryption with Associated Data
+ *
+ * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_INTERNAL_AEAD_H
+#define _CRYPTO_INTERNAL_AEAD_H
+
+#include <crypto/aead.h>
+#include <crypto/algapi.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+
+struct rtattr;
+
+struct aead_instance {
+ void (*free)(struct aead_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct aead_alg, base)];
+ struct crypto_instance base;
+ } s;
+ struct aead_alg alg;
+ };
+};
+
+struct crypto_aead_spawn {
+ struct crypto_spawn base;
+};
+
+struct aead_queue {
+ struct crypto_queue base;
+};
+
+static inline void *crypto_aead_ctx(struct crypto_aead *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void *crypto_aead_ctx_dma(struct crypto_aead *tfm)
+{
+ return crypto_tfm_ctx_dma(&tfm->base);
+}
+
+static inline struct crypto_instance *aead_crypto_instance(
+ struct aead_instance *inst)
+{
+ return container_of(&inst->alg.base, struct crypto_instance, alg);
+}
+
+static inline struct aead_instance *aead_instance(struct crypto_instance *inst)
+{
+ return container_of(&inst->alg, struct aead_instance, alg.base);
+}
+
+static inline struct aead_instance *aead_alg_instance(struct crypto_aead *aead)
+{
+ return aead_instance(crypto_tfm_alg_instance(&aead->base));
+}
+
+static inline void *aead_instance_ctx(struct aead_instance *inst)
+{
+ return crypto_instance_ctx(aead_crypto_instance(inst));
+}
+
+static inline void *aead_request_ctx(struct aead_request *req)
+{
+ return req->__ctx;
+}
+
+static inline void *aead_request_ctx_dma(struct aead_request *req)
+{
+ unsigned int align = crypto_dma_align();
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(aead_request_ctx(req), align);
+}
+
+static inline void aead_request_complete(struct aead_request *req, int err)
+{
+ crypto_request_complete(&req->base, err);
+}
+
+static inline u32 aead_request_flags(struct aead_request *req)
+{
+ return req->base.flags;
+}
+
+static inline struct aead_request *aead_request_cast(
+ struct crypto_async_request *req)
+{
+ return container_of(req, struct aead_request, base);
+}
+
+int crypto_grab_aead(struct crypto_aead_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct aead_alg *crypto_spawn_aead_alg(
+ struct crypto_aead_spawn *spawn)
+{
+ return container_of(spawn->base.alg, struct aead_alg, base);
+}
+
+static inline struct crypto_aead *crypto_spawn_aead(
+ struct crypto_aead_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
+ unsigned int reqsize)
+{
+ aead->reqsize = reqsize;
+}
+
+static inline void crypto_aead_set_reqsize_dma(struct crypto_aead *aead,
+ unsigned int reqsize)
+{
+ reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
+ aead->reqsize = reqsize;
+}
+
+static inline void aead_init_queue(struct aead_queue *queue,
+ unsigned int max_qlen)
+{
+ crypto_init_queue(&queue->base, max_qlen);
+}
+
+static inline unsigned int crypto_aead_alg_chunksize(struct aead_alg *alg)
+{
+ return alg->chunksize;
+}
+
+/**
+ * crypto_aead_chunksize() - obtain chunk size
+ * @tfm: cipher handle
+ *
+ * The block size is set to one for ciphers such as CCM. However,
+ * you still need to provide incremental updates in multiples of
+ * the underlying block size as the IV does not have sub-block
+ * granularity. This is known in this API as the chunk size.
+ *
+ * Return: chunk size in bytes
+ */
+static inline unsigned int crypto_aead_chunksize(struct crypto_aead *tfm)
+{
+ return crypto_aead_alg_chunksize(crypto_aead_alg(tfm));
+}
+
+int crypto_register_aead(struct aead_alg *alg);
+void crypto_unregister_aead(struct aead_alg *alg);
+int crypto_register_aeads(struct aead_alg *algs, int count);
+void crypto_unregister_aeads(struct aead_alg *algs, int count);
+int aead_register_instance(struct crypto_template *tmpl,
+ struct aead_instance *inst);
+
+#endif /* _CRYPTO_INTERNAL_AEAD_H */
+
diff --git a/include/crypto/internal/akcipher.h b/include/crypto/internal/akcipher.h
new file mode 100644
index 000000000..14ee62bc5
--- /dev/null
+++ b/include/crypto/internal/akcipher.h
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Public Key Encryption
+ *
+ * Copyright (c) 2015, Intel Corporation
+ * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
+ */
+#ifndef _CRYPTO_AKCIPHER_INT_H
+#define _CRYPTO_AKCIPHER_INT_H
+#include <crypto/akcipher.h>
+#include <crypto/algapi.h>
+
+struct akcipher_instance {
+ void (*free)(struct akcipher_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct akcipher_alg, base)];
+ struct crypto_instance base;
+ } s;
+ struct akcipher_alg alg;
+ };
+};
+
+struct crypto_akcipher_spawn {
+ struct crypto_spawn base;
+};
+
+/*
+ * Transform internal helpers.
+ */
+static inline void *akcipher_request_ctx(struct akcipher_request *req)
+{
+ return req->__ctx;
+}
+
+static inline void *akcipher_request_ctx_dma(struct akcipher_request *req)
+{
+ unsigned int align = crypto_dma_align();
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(akcipher_request_ctx(req), align);
+}
+
+static inline void akcipher_set_reqsize(struct crypto_akcipher *akcipher,
+ unsigned int reqsize)
+{
+ akcipher->reqsize = reqsize;
+}
+
+static inline void akcipher_set_reqsize_dma(struct crypto_akcipher *akcipher,
+ unsigned int reqsize)
+{
+ reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
+ akcipher->reqsize = reqsize;
+}
+
+static inline void *akcipher_tfm_ctx(struct crypto_akcipher *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void *akcipher_tfm_ctx_dma(struct crypto_akcipher *tfm)
+{
+ return crypto_tfm_ctx_dma(&tfm->base);
+}
+
+static inline void akcipher_request_complete(struct akcipher_request *req,
+ int err)
+{
+ crypto_request_complete(&req->base, err);
+}
+
+static inline const char *akcipher_alg_name(struct crypto_akcipher *tfm)
+{
+ return crypto_akcipher_tfm(tfm)->__crt_alg->cra_name;
+}
+
+static inline struct crypto_instance *akcipher_crypto_instance(
+ struct akcipher_instance *inst)
+{
+ return container_of(&inst->alg.base, struct crypto_instance, alg);
+}
+
+static inline struct akcipher_instance *akcipher_instance(
+ struct crypto_instance *inst)
+{
+ return container_of(&inst->alg, struct akcipher_instance, alg.base);
+}
+
+static inline struct akcipher_instance *akcipher_alg_instance(
+ struct crypto_akcipher *akcipher)
+{
+ return akcipher_instance(crypto_tfm_alg_instance(&akcipher->base));
+}
+
+static inline void *akcipher_instance_ctx(struct akcipher_instance *inst)
+{
+ return crypto_instance_ctx(akcipher_crypto_instance(inst));
+}
+
+int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline struct crypto_akcipher *crypto_spawn_akcipher(
+ struct crypto_akcipher_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline void crypto_drop_akcipher(struct crypto_akcipher_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct akcipher_alg *crypto_spawn_akcipher_alg(
+ struct crypto_akcipher_spawn *spawn)
+{
+ return container_of(spawn->base.alg, struct akcipher_alg, base);
+}
+
+/**
+ * crypto_register_akcipher() -- Register public key algorithm
+ *
+ * Function registers an implementation of a public key cipher algorithm
+ *
+ * @alg: algorithm definition
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_register_akcipher(struct akcipher_alg *alg);
+
+/**
+ * crypto_unregister_akcipher() -- Unregister public key algorithm
+ *
+ * Function unregisters an implementation of a public key cipher algorithm
+ *
+ * @alg: algorithm definition
+ */
+void crypto_unregister_akcipher(struct akcipher_alg *alg);
+
+/**
+ * akcipher_register_instance() -- Unregister public key template instance
+ *
+ * Function registers an implementation of an asymmetric key algorithm
+ * created from a template
+ *
+ * @tmpl: the template from which the algorithm was created
+ * @inst: the template instance
+ */
+int akcipher_register_instance(struct crypto_template *tmpl,
+ struct akcipher_instance *inst);
+#endif
diff --git a/include/crypto/internal/cipher.h b/include/crypto/internal/cipher.h
new file mode 100644
index 000000000..a9174ba90
--- /dev/null
+++ b/include/crypto/internal/cipher.h
@@ -0,0 +1,218 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ * Copyright (c) 2002 David S. Miller (davem@redhat.com)
+ * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
+ *
+ * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
+ * and Nettle, by Niels Möller.
+ */
+
+#ifndef _CRYPTO_INTERNAL_CIPHER_H
+#define _CRYPTO_INTERNAL_CIPHER_H
+
+#include <crypto/algapi.h>
+
+struct crypto_cipher {
+ struct crypto_tfm base;
+};
+
+/**
+ * DOC: Single Block Cipher API
+ *
+ * The single block cipher API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_CIPHER (listed as type "cipher" in /proc/crypto).
+ *
+ * Using the single block cipher API calls, operations with the basic cipher
+ * primitive can be implemented. These cipher primitives exclude any block
+ * chaining operations including IV handling.
+ *
+ * The purpose of this single block cipher API is to support the implementation
+ * of templates or other concepts that only need to perform the cipher operation
+ * on one block at a time. Templates invoke the underlying cipher primitive
+ * block-wise and process either the input or the output data of these cipher
+ * operations.
+ */
+
+static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
+{
+ return (struct crypto_cipher *)tfm;
+}
+
+/**
+ * crypto_alloc_cipher() - allocate single block cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * single block cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a single block cipher. The returned struct
+ * crypto_cipher is the cipher handle that is required for any subsequent API
+ * invocation for that single block cipher.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
+ u32 type, u32 mask)
+{
+ type &= ~CRYPTO_ALG_TYPE_MASK;
+ type |= CRYPTO_ALG_TYPE_CIPHER;
+ mask |= CRYPTO_ALG_TYPE_MASK;
+
+ return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
+{
+ return &tfm->base;
+}
+
+/**
+ * crypto_free_cipher() - zeroize and free the single block cipher handle
+ * @tfm: cipher handle to be freed
+ */
+static inline void crypto_free_cipher(struct crypto_cipher *tfm)
+{
+ crypto_free_tfm(crypto_cipher_tfm(tfm));
+}
+
+/**
+ * crypto_has_cipher() - Search for the availability of a single block cipher
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * single block cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Return: true when the single block cipher is known to the kernel crypto API;
+ * false otherwise
+ */
+static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
+{
+ type &= ~CRYPTO_ALG_TYPE_MASK;
+ type |= CRYPTO_ALG_TYPE_CIPHER;
+ mask |= CRYPTO_ALG_TYPE_MASK;
+
+ return crypto_has_alg(alg_name, type, mask);
+}
+
+/**
+ * crypto_cipher_blocksize() - obtain block size for cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the single block cipher referenced with the cipher handle
+ * tfm is returned. The caller may use that information to allocate appropriate
+ * memory for the data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
+}
+
+static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm));
+}
+
+static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm)
+{
+ return crypto_tfm_get_flags(crypto_cipher_tfm(tfm));
+}
+
+static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags);
+}
+
+static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
+}
+
+/**
+ * crypto_cipher_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the single block cipher referenced by the
+ * cipher handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_cipher_setkey(struct crypto_cipher *tfm,
+ const u8 *key, unsigned int keylen);
+
+/**
+ * crypto_cipher_encrypt_one() - encrypt one block of plaintext
+ * @tfm: cipher handle
+ * @dst: points to the buffer that will be filled with the ciphertext
+ * @src: buffer holding the plaintext to be encrypted
+ *
+ * Invoke the encryption operation of one block. The caller must ensure that
+ * the plaintext and ciphertext buffers are at least one block in size.
+ */
+void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
+ u8 *dst, const u8 *src);
+
+/**
+ * crypto_cipher_decrypt_one() - decrypt one block of ciphertext
+ * @tfm: cipher handle
+ * @dst: points to the buffer that will be filled with the plaintext
+ * @src: buffer holding the ciphertext to be decrypted
+ *
+ * Invoke the decryption operation of one block. The caller must ensure that
+ * the plaintext and ciphertext buffers are at least one block in size.
+ */
+void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
+ u8 *dst, const u8 *src);
+
+struct crypto_cipher_spawn {
+ struct crypto_spawn base;
+};
+
+static inline int crypto_grab_cipher(struct crypto_cipher_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
+{
+ type &= ~CRYPTO_ALG_TYPE_MASK;
+ type |= CRYPTO_ALG_TYPE_CIPHER;
+ mask |= CRYPTO_ALG_TYPE_MASK;
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
+}
+
+static inline void crypto_drop_cipher(struct crypto_cipher_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct crypto_alg *crypto_spawn_cipher_alg(
+ struct crypto_cipher_spawn *spawn)
+{
+ return spawn->base.alg;
+}
+
+static inline struct crypto_cipher *crypto_spawn_cipher(
+ struct crypto_cipher_spawn *spawn)
+{
+ u32 type = CRYPTO_ALG_TYPE_CIPHER;
+ u32 mask = CRYPTO_ALG_TYPE_MASK;
+
+ return __crypto_cipher_cast(crypto_spawn_tfm(&spawn->base, type, mask));
+}
+
+static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm)
+{
+ return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
+}
+
+#endif
diff --git a/include/crypto/internal/des.h b/include/crypto/internal/des.h
new file mode 100644
index 000000000..723fe5bf1
--- /dev/null
+++ b/include/crypto/internal/des.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * DES & Triple DES EDE key verification helpers
+ */
+
+#ifndef __CRYPTO_INTERNAL_DES_H
+#define __CRYPTO_INTERNAL_DES_H
+
+#include <linux/crypto.h>
+#include <linux/fips.h>
+#include <crypto/des.h>
+#include <crypto/aead.h>
+#include <crypto/skcipher.h>
+
+/**
+ * crypto_des_verify_key - Check whether a DES key is weak
+ * @tfm: the crypto algo
+ * @key: the key buffer
+ *
+ * Returns -EINVAL if the key is weak and the crypto TFM does not permit weak
+ * keys. Otherwise, 0 is returned.
+ *
+ * It is the job of the caller to ensure that the size of the key equals
+ * DES_KEY_SIZE.
+ */
+static inline int crypto_des_verify_key(struct crypto_tfm *tfm, const u8 *key)
+{
+ struct des_ctx tmp;
+ int err;
+
+ err = des_expand_key(&tmp, key, DES_KEY_SIZE);
+ if (err == -ENOKEY) {
+ if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
+ err = -EINVAL;
+ else
+ err = 0;
+ }
+ memzero_explicit(&tmp, sizeof(tmp));
+ return err;
+}
+
+/*
+ * RFC2451:
+ *
+ * For DES-EDE3, there is no known need to reject weak or
+ * complementation keys. Any weakness is obviated by the use of
+ * multiple keys.
+ *
+ * However, if the first two or last two independent 64-bit keys are
+ * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
+ * same as DES. Implementers MUST reject keys that exhibit this
+ * property.
+ *
+ */
+static inline int des3_ede_verify_key(const u8 *key, unsigned int key_len,
+ bool check_weak)
+{
+ int ret = fips_enabled ? -EINVAL : -ENOKEY;
+ u32 K[6];
+
+ memcpy(K, key, DES3_EDE_KEY_SIZE);
+
+ if ((!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
+ !((K[2] ^ K[4]) | (K[3] ^ K[5]))) &&
+ (fips_enabled || check_weak))
+ goto bad;
+
+ if ((!((K[0] ^ K[4]) | (K[1] ^ K[5]))) && fips_enabled)
+ goto bad;
+
+ ret = 0;
+bad:
+ memzero_explicit(K, DES3_EDE_KEY_SIZE);
+
+ return ret;
+}
+
+/**
+ * crypto_des3_ede_verify_key - Check whether a DES3-EDE key is weak
+ * @tfm: the crypto algo
+ * @key: the key buffer
+ *
+ * Returns -EINVAL if the key is weak and the crypto TFM does not permit weak
+ * keys or when running in FIPS mode. Otherwise, 0 is returned. Note that some
+ * keys are rejected in FIPS mode even if weak keys are permitted by the TFM
+ * flags.
+ *
+ * It is the job of the caller to ensure that the size of the key equals
+ * DES3_EDE_KEY_SIZE.
+ */
+static inline int crypto_des3_ede_verify_key(struct crypto_tfm *tfm,
+ const u8 *key)
+{
+ return des3_ede_verify_key(key, DES3_EDE_KEY_SIZE,
+ crypto_tfm_get_flags(tfm) &
+ CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
+}
+
+static inline int verify_skcipher_des_key(struct crypto_skcipher *tfm,
+ const u8 *key)
+{
+ return crypto_des_verify_key(crypto_skcipher_tfm(tfm), key);
+}
+
+static inline int verify_skcipher_des3_key(struct crypto_skcipher *tfm,
+ const u8 *key)
+{
+ return crypto_des3_ede_verify_key(crypto_skcipher_tfm(tfm), key);
+}
+
+static inline int verify_aead_des_key(struct crypto_aead *tfm, const u8 *key,
+ int keylen)
+{
+ if (keylen != DES_KEY_SIZE)
+ return -EINVAL;
+ return crypto_des_verify_key(crypto_aead_tfm(tfm), key);
+}
+
+static inline int verify_aead_des3_key(struct crypto_aead *tfm, const u8 *key,
+ int keylen)
+{
+ if (keylen != DES3_EDE_KEY_SIZE)
+ return -EINVAL;
+ return crypto_des3_ede_verify_key(crypto_aead_tfm(tfm), key);
+}
+
+#endif /* __CRYPTO_INTERNAL_DES_H */
diff --git a/include/crypto/internal/ecc.h b/include/crypto/internal/ecc.h
new file mode 100644
index 000000000..d67fe13a5
--- /dev/null
+++ b/include/crypto/internal/ecc.h
@@ -0,0 +1,312 @@
+/*
+ * Copyright (c) 2013, Kenneth MacKay
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _CRYPTO_ECC_H
+#define _CRYPTO_ECC_H
+
+#include <crypto/ecc_curve.h>
+#include <linux/unaligned.h>
+
+/* One digit is u64 qword. */
+#define ECC_CURVE_NIST_P192_DIGITS 3
+#define ECC_CURVE_NIST_P256_DIGITS 4
+#define ECC_CURVE_NIST_P384_DIGITS 6
+#define ECC_CURVE_NIST_P521_DIGITS 9
+#define ECC_MAX_DIGITS DIV_ROUND_UP(521, 64) /* NIST P521 */
+
+#define ECC_DIGITS_TO_BYTES_SHIFT 3
+
+#define ECC_MAX_BYTES (ECC_MAX_DIGITS << ECC_DIGITS_TO_BYTES_SHIFT)
+
+#define ECC_POINT_INIT(x, y, ndigits) (struct ecc_point) { x, y, ndigits }
+
+/*
+ * The integers r and s making up the signature are expected to be
+ * formatted as two consecutive u64 arrays of size ECC_MAX_BYTES.
+ * The bytes within each u64 digit are in native endianness,
+ * but the order of the u64 digits themselves is little endian.
+ * This format allows direct use by internal vli_*() functions.
+ */
+struct ecdsa_raw_sig {
+ u64 r[ECC_MAX_DIGITS];
+ u64 s[ECC_MAX_DIGITS];
+};
+
+/**
+ * ecc_swap_digits() - Copy ndigits from big endian array to native array
+ * @in: Input array
+ * @out: Output array
+ * @ndigits: Number of digits to copy
+ */
+static inline void ecc_swap_digits(const void *in, u64 *out, unsigned int ndigits)
+{
+ const __be64 *src = (__force __be64 *)in;
+ int i;
+
+ for (i = 0; i < ndigits; i++)
+ out[i] = get_unaligned_be64(&src[ndigits - 1 - i]);
+}
+
+/**
+ * ecc_digits_from_bytes() - Create ndigits-sized digits array from byte array
+ * @in: Input byte array
+ * @nbytes: Size of input byte array
+ * @out: Output digits array
+ * @ndigits: Number of digits to create from byte array
+ *
+ * The first byte in the input byte array is expected to hold the most
+ * significant bits of the large integer.
+ */
+void ecc_digits_from_bytes(const u8 *in, unsigned int nbytes,
+ u64 *out, unsigned int ndigits);
+
+/**
+ * ecc_is_key_valid() - Validate a given ECDH private key
+ *
+ * @curve_id: id representing the curve to use
+ * @ndigits: curve's number of digits
+ * @private_key: private key to be used for the given curve
+ * @private_key_len: private key length
+ *
+ * Returns: 0 if the key is acceptable, a negative value otherwise
+ */
+int ecc_is_key_valid(unsigned int curve_id, unsigned int ndigits,
+ const u64 *private_key, unsigned int private_key_len);
+
+/**
+ * ecc_gen_privkey() - Generates an ECC private key.
+ * The private key is a random integer in the range 0 < random < n, where n is a
+ * prime that is the order of the cyclic subgroup generated by the distinguished
+ * point G.
+ * @curve_id: id representing the curve to use
+ * @ndigits: curve number of digits
+ * @private_key: buffer for storing the generated private key
+ *
+ * Returns: 0 if the private key was generated successfully, a negative value
+ * if an error occurred.
+ */
+int ecc_gen_privkey(unsigned int curve_id, unsigned int ndigits,
+ u64 *private_key);
+
+/**
+ * ecc_make_pub_key() - Compute an ECC public key
+ *
+ * @curve_id: id representing the curve to use
+ * @ndigits: curve's number of digits
+ * @private_key: pregenerated private key for the given curve
+ * @public_key: buffer for storing the generated public key
+ *
+ * Returns: 0 if the public key was generated successfully, a negative value
+ * if an error occurred.
+ */
+int ecc_make_pub_key(const unsigned int curve_id, unsigned int ndigits,
+ const u64 *private_key, u64 *public_key);
+
+/**
+ * crypto_ecdh_shared_secret() - Compute a shared secret
+ *
+ * @curve_id: id representing the curve to use
+ * @ndigits: curve's number of digits
+ * @private_key: private key of part A
+ * @public_key: public key of counterpart B
+ * @secret: buffer for storing the calculated shared secret
+ *
+ * Note: It is recommended that you hash the result of crypto_ecdh_shared_secret
+ * before using it for symmetric encryption or HMAC.
+ *
+ * Returns: 0 if the shared secret was generated successfully, a negative value
+ * if an error occurred.
+ */
+int crypto_ecdh_shared_secret(unsigned int curve_id, unsigned int ndigits,
+ const u64 *private_key, const u64 *public_key,
+ u64 *secret);
+
+/**
+ * ecc_is_pubkey_valid_partial() - Partial public key validation
+ *
+ * @curve: elliptic curve domain parameters
+ * @pk: public key as a point
+ *
+ * Validate public key according to SP800-56A section 5.6.2.3.4 ECC Partial
+ * Public-Key Validation Routine.
+ *
+ * Note: There is no check that the public key is in the correct elliptic curve
+ * subgroup.
+ *
+ * Return: 0 if validation is successful, -EINVAL if validation is failed.
+ */
+int ecc_is_pubkey_valid_partial(const struct ecc_curve *curve,
+ struct ecc_point *pk);
+
+/**
+ * ecc_is_pubkey_valid_full() - Full public key validation
+ *
+ * @curve: elliptic curve domain parameters
+ * @pk: public key as a point
+ *
+ * Validate public key according to SP800-56A section 5.6.2.3.3 ECC Full
+ * Public-Key Validation Routine.
+ *
+ * Return: 0 if validation is successful, -EINVAL if validation is failed.
+ */
+int ecc_is_pubkey_valid_full(const struct ecc_curve *curve,
+ struct ecc_point *pk);
+
+/**
+ * vli_is_zero() - Determine is vli is zero
+ *
+ * @vli: vli to check.
+ * @ndigits: length of the @vli
+ *
+ * Returns: %true if vli == 0, %false otherwise.
+ */
+bool vli_is_zero(const u64 *vli, unsigned int ndigits);
+
+/**
+ * vli_cmp() - compare left and right vlis
+ *
+ * @left: vli
+ * @right: vli
+ * @ndigits: length of both vlis
+ *
+ * Returns: sign of @left - @right, i.e. -1 if @left < @right,
+ * 0 if @left == @right, 1 if @left > @right.
+ */
+int vli_cmp(const u64 *left, const u64 *right, unsigned int ndigits);
+
+/**
+ * vli_sub() - Subtracts right from left
+ *
+ * @result: where to write result
+ * @left: vli
+ * @right: vli
+ * @ndigits: length of all vlis
+ *
+ * Note: can modify in-place.
+ *
+ * Return: carry bit.
+ */
+u64 vli_sub(u64 *result, const u64 *left, const u64 *right,
+ unsigned int ndigits);
+
+/**
+ * vli_from_be64() - Load vli from big-endian u64 array
+ *
+ * @dest: destination vli
+ * @src: source array of u64 BE values
+ * @ndigits: length of both vli and array
+ */
+void vli_from_be64(u64 *dest, const void *src, unsigned int ndigits);
+
+/**
+ * vli_from_le64() - Load vli from little-endian u64 array
+ *
+ * @dest: destination vli
+ * @src: source array of u64 LE values
+ * @ndigits: length of both vli and array
+ */
+void vli_from_le64(u64 *dest, const void *src, unsigned int ndigits);
+
+/**
+ * vli_mod_inv() - Modular inversion
+ *
+ * @result: where to write vli number
+ * @input: vli value to operate on
+ * @mod: modulus
+ * @ndigits: length of all vlis
+ */
+void vli_mod_inv(u64 *result, const u64 *input, const u64 *mod,
+ unsigned int ndigits);
+
+/**
+ * vli_mod_mult_slow() - Modular multiplication
+ *
+ * @result: where to write result value
+ * @left: vli number to multiply with @right
+ * @right: vli number to multiply with @left
+ * @mod: modulus
+ * @ndigits: length of all vlis
+ *
+ * Note: Assumes that mod is big enough curve order.
+ */
+void vli_mod_mult_slow(u64 *result, const u64 *left, const u64 *right,
+ const u64 *mod, unsigned int ndigits);
+
+/**
+ * vli_num_bits() - Counts the number of bits required for vli.
+ *
+ * @vli: vli to check.
+ * @ndigits: Length of the @vli
+ *
+ * Return: The number of bits required to represent @vli.
+ */
+unsigned int vli_num_bits(const u64 *vli, unsigned int ndigits);
+
+/**
+ * ecc_alloc_point() - Allocate ECC point.
+ *
+ * @ndigits: Length of vlis in u64 qwords.
+ *
+ * Return: Pointer to the allocated point or NULL if allocation failed.
+ */
+struct ecc_point *ecc_alloc_point(unsigned int ndigits);
+
+/**
+ * ecc_free_point() - Free ECC point.
+ *
+ * @p: The point to free.
+ */
+void ecc_free_point(struct ecc_point *p);
+
+/**
+ * ecc_point_is_zero() - Check if point is zero.
+ *
+ * @point: Point to check for zero.
+ *
+ * Return: true if point is the point at infinity, false otherwise.
+ */
+bool ecc_point_is_zero(const struct ecc_point *point);
+
+/**
+ * ecc_point_mult_shamir() - Add two points multiplied by scalars
+ *
+ * @result: resulting point
+ * @x: scalar to multiply with @p
+ * @p: point to multiply with @x
+ * @y: scalar to multiply with @q
+ * @q: point to multiply with @y
+ * @curve: curve
+ *
+ * Returns result = x * p + x * q over the curve.
+ * This works faster than two multiplications and addition.
+ */
+void ecc_point_mult_shamir(const struct ecc_point *result,
+ const u64 *x, const struct ecc_point *p,
+ const u64 *y, const struct ecc_point *q,
+ const struct ecc_curve *curve);
+
+extern struct crypto_template ecdsa_x962_tmpl;
+extern struct crypto_template ecdsa_p1363_tmpl;
+#endif
diff --git a/include/crypto/internal/engine.h b/include/crypto/internal/engine.h
new file mode 100644
index 000000000..6a1d27880
--- /dev/null
+++ b/include/crypto/internal/engine.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Crypto engine API
+ *
+ * Copyright (c) 2016 Baolin Wang <baolin.wang@linaro.org>
+ * Copyright (c) 2023 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_INTERNAL_ENGINE_H
+#define _CRYPTO_INTERNAL_ENGINE_H
+
+#include <crypto/algapi.h>
+#include <crypto/engine.h>
+#include <linux/kthread.h>
+#include <linux/spinlock_types.h>
+#include <linux/types.h>
+
+#define ENGINE_NAME_LEN 30
+
+struct device;
+
+/*
+ * struct crypto_engine - crypto hardware engine
+ * @name: the engine name
+ * @busy: request pump is busy
+ * @running: the engine is on working
+ * @retry_support: indication that the hardware allows re-execution
+ * of a failed backlog request
+ * crypto-engine, in head position to keep order
+ * @rt: whether this queue is set to run as a realtime task
+ * @list: link with the global crypto engine list
+ * @queue_lock: spinlock to synchronise access to request queue
+ * @queue: the crypto queue of the engine
+ * @kworker: kthread worker struct for request pump
+ * @pump_requests: work struct for scheduling work to the request pump
+ * @priv_data: the engine private data
+ * @cur_req: the current request which is on processing
+ */
+struct crypto_engine {
+ char name[ENGINE_NAME_LEN];
+ bool busy;
+ bool running;
+
+ bool retry_support;
+ bool rt;
+
+ struct list_head list;
+ spinlock_t queue_lock;
+ struct crypto_queue queue __guarded_by(&queue_lock);
+ struct device *dev;
+
+ struct kthread_worker *kworker;
+ struct kthread_work pump_requests;
+
+ void *priv_data;
+ struct crypto_async_request *cur_req;
+};
+
+#endif
diff --git a/include/crypto/internal/geniv.h b/include/crypto/internal/geniv.h
new file mode 100644
index 000000000..e38d9f048
--- /dev/null
+++ b/include/crypto/internal/geniv.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * geniv: IV generation
+ *
+ * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_INTERNAL_GENIV_H
+#define _CRYPTO_INTERNAL_GENIV_H
+
+#include <crypto/internal/aead.h>
+#include <linux/types.h>
+
+struct aead_geniv_ctx {
+ struct crypto_aead *child;
+ u8 salt[] __attribute__ ((aligned(__alignof__(u32))));
+};
+
+struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
+ struct rtattr **tb);
+int aead_init_geniv(struct crypto_aead *tfm);
+void aead_exit_geniv(struct crypto_aead *tfm);
+
+#endif /* _CRYPTO_INTERNAL_GENIV_H */
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
new file mode 100644
index 000000000..6ec5f2f37
--- /dev/null
+++ b/include/crypto/internal/hash.h
@@ -0,0 +1,405 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Hash algorithms.
+ *
+ * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_INTERNAL_HASH_H
+#define _CRYPTO_INTERNAL_HASH_H
+
+#include <crypto/algapi.h>
+#include <crypto/hash.h>
+
+/* Set this bit to handle partial blocks in the API. */
+#define CRYPTO_AHASH_ALG_BLOCK_ONLY 0x01000000
+
+/* Set this bit if final requires at least one byte. */
+#define CRYPTO_AHASH_ALG_FINAL_NONZERO 0x02000000
+
+/* Set this bit if finup can deal with multiple blocks. */
+#define CRYPTO_AHASH_ALG_FINUP_MAX 0x04000000
+
+/* This bit is set by the Crypto API if export_core is not supported. */
+#define CRYPTO_AHASH_ALG_NO_EXPORT_CORE 0x08000000
+
+#define HASH_FBREQ_ON_STACK(name, req) \
+ char __##name##_req[sizeof(struct ahash_request) + \
+ MAX_SYNC_HASH_REQSIZE] CRYPTO_MINALIGN_ATTR; \
+ struct ahash_request *name = ahash_fbreq_on_stack_init( \
+ __##name##_req, (req))
+
+struct ahash_request;
+struct scatterlist;
+
+struct crypto_hash_walk {
+ const char *data;
+
+ unsigned int offset;
+ unsigned int flags;
+
+ struct page *pg;
+ unsigned int entrylen;
+
+ unsigned int total;
+ struct scatterlist *sg;
+};
+
+struct ahash_instance {
+ void (*free)(struct ahash_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct ahash_alg, halg.base)];
+ struct crypto_instance base;
+ } s;
+ struct ahash_alg alg;
+ };
+};
+
+struct shash_instance {
+ void (*free)(struct shash_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct shash_alg, base)];
+ struct crypto_instance base;
+ } s;
+ struct shash_alg alg;
+ };
+};
+
+struct crypto_ahash_spawn {
+ struct crypto_spawn base;
+};
+
+struct crypto_shash_spawn {
+ struct crypto_spawn base;
+};
+
+int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
+int crypto_hash_walk_first(struct ahash_request *req,
+ struct crypto_hash_walk *walk);
+
+static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk)
+{
+ return !(walk->entrylen | walk->total);
+}
+
+int crypto_register_ahash(struct ahash_alg *alg);
+void crypto_unregister_ahash(struct ahash_alg *alg);
+int crypto_register_ahashes(struct ahash_alg *algs, int count);
+void crypto_unregister_ahashes(struct ahash_alg *algs, int count);
+int ahash_register_instance(struct crypto_template *tmpl,
+ struct ahash_instance *inst);
+void ahash_free_singlespawn_instance(struct ahash_instance *inst);
+
+int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen);
+
+static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
+{
+ return alg->setkey != shash_no_setkey;
+}
+
+bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
+
+static inline bool crypto_shash_alg_needs_key(struct shash_alg *alg)
+{
+ return crypto_shash_alg_has_setkey(alg) &&
+ !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY);
+}
+
+static inline bool crypto_hash_alg_needs_key(struct hash_alg_common *alg)
+{
+ return crypto_hash_alg_has_setkey(alg) &&
+ !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY);
+}
+
+static inline bool crypto_hash_no_export_core(struct crypto_ahash *tfm)
+{
+ return crypto_hash_alg_common(tfm)->base.cra_flags &
+ CRYPTO_AHASH_ALG_NO_EXPORT_CORE;
+}
+
+int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct hash_alg_common *crypto_spawn_ahash_alg(
+ struct crypto_ahash_spawn *spawn)
+{
+ return __crypto_hash_alg_common(spawn->base.alg);
+}
+
+int crypto_register_shash(struct shash_alg *alg);
+void crypto_unregister_shash(struct shash_alg *alg);
+int crypto_register_shashes(struct shash_alg *algs, int count);
+void crypto_unregister_shashes(struct shash_alg *algs, int count);
+int shash_register_instance(struct crypto_template *tmpl,
+ struct shash_instance *inst);
+void shash_free_singlespawn_instance(struct shash_instance *inst);
+
+int crypto_grab_shash(struct crypto_shash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct shash_alg *crypto_spawn_shash_alg(
+ struct crypto_shash_spawn *spawn)
+{
+ return __crypto_shash_alg(spawn->base.alg);
+}
+
+int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
+int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
+int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
+
+static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+}
+
+static inline void *crypto_ahash_ctx_dma(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_ctx_dma(crypto_ahash_tfm(tfm));
+}
+
+static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg)
+{
+ return container_of(__crypto_hash_alg_common(alg), struct ahash_alg,
+ halg);
+}
+
+static inline struct ahash_alg *crypto_ahash_alg(struct crypto_ahash *hash)
+{
+ return container_of(crypto_hash_alg_common(hash), struct ahash_alg,
+ halg);
+}
+
+static inline void crypto_ahash_set_statesize(struct crypto_ahash *tfm,
+ unsigned int size)
+{
+ tfm->statesize = size;
+}
+
+static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
+ unsigned int reqsize)
+{
+ tfm->reqsize = reqsize;
+}
+
+static inline bool crypto_ahash_tested(struct crypto_ahash *tfm)
+{
+ struct crypto_tfm *tfm_base = crypto_ahash_tfm(tfm);
+
+ return tfm_base->__crt_alg->cra_flags & CRYPTO_ALG_TESTED;
+}
+
+static inline void crypto_ahash_set_reqsize_dma(struct crypto_ahash *ahash,
+ unsigned int reqsize)
+{
+ reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
+ ahash->reqsize = reqsize;
+}
+
+static inline struct crypto_instance *ahash_crypto_instance(
+ struct ahash_instance *inst)
+{
+ return &inst->s.base;
+}
+
+static inline struct ahash_instance *ahash_instance(
+ struct crypto_instance *inst)
+{
+ return container_of(inst, struct ahash_instance, s.base);
+}
+
+static inline struct ahash_instance *ahash_alg_instance(
+ struct crypto_ahash *ahash)
+{
+ return ahash_instance(crypto_tfm_alg_instance(&ahash->base));
+}
+
+static inline void *ahash_instance_ctx(struct ahash_instance *inst)
+{
+ return crypto_instance_ctx(ahash_crypto_instance(inst));
+}
+
+static inline void *ahash_request_ctx_dma(struct ahash_request *req)
+{
+ unsigned int align = crypto_dma_align();
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(ahash_request_ctx(req), align);
+}
+
+static inline void ahash_request_complete(struct ahash_request *req, int err)
+{
+ crypto_request_complete(&req->base, err);
+}
+
+static inline u32 ahash_request_flags(struct ahash_request *req)
+{
+ return crypto_request_flags(&req->base) & ~CRYPTO_AHASH_REQ_PRIVATE;
+}
+
+static inline struct crypto_ahash *crypto_spawn_ahash(
+ struct crypto_ahash_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline int ahash_enqueue_request(struct crypto_queue *queue,
+ struct ahash_request *request)
+{
+ return crypto_enqueue_request(queue, &request->base);
+}
+
+static inline struct ahash_request *ahash_dequeue_request(
+ struct crypto_queue *queue)
+{
+ return ahash_request_cast(crypto_dequeue_request(queue));
+}
+
+static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline struct crypto_instance *shash_crypto_instance(
+ struct shash_instance *inst)
+{
+ return &inst->s.base;
+}
+
+static inline struct shash_instance *shash_instance(
+ struct crypto_instance *inst)
+{
+ return container_of(inst, struct shash_instance, s.base);
+}
+
+static inline struct shash_instance *shash_alg_instance(
+ struct crypto_shash *shash)
+{
+ return shash_instance(crypto_tfm_alg_instance(&shash->base));
+}
+
+static inline void *shash_instance_ctx(struct shash_instance *inst)
+{
+ return crypto_instance_ctx(shash_crypto_instance(inst));
+}
+
+static inline struct crypto_shash *crypto_spawn_shash(
+ struct crypto_shash_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_shash, base);
+}
+
+static inline bool ahash_request_isvirt(struct ahash_request *req)
+{
+ return req->base.flags & CRYPTO_AHASH_REQ_VIRT;
+}
+
+static inline bool crypto_ahash_req_virt(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_req_virt(&tfm->base);
+}
+
+static inline struct crypto_ahash *crypto_ahash_fb(struct crypto_ahash *tfm)
+{
+ return __crypto_ahash_cast(crypto_ahash_tfm(tfm)->fb);
+}
+
+static inline struct ahash_request *ahash_fbreq_on_stack_init(
+ char *buf, struct ahash_request *old)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(old);
+ struct ahash_request *req = (void *)buf;
+
+ crypto_stack_request_init(&req->base,
+ crypto_ahash_tfm(crypto_ahash_fb(tfm)));
+ ahash_request_set_callback(req, ahash_request_flags(old), NULL, NULL);
+ req->base.flags &= ~CRYPTO_AHASH_REQ_PRIVATE;
+ req->base.flags |= old->base.flags & CRYPTO_AHASH_REQ_PRIVATE;
+ req->src = old->src;
+ req->result = old->result;
+ req->nbytes = old->nbytes;
+
+ return req;
+}
+
+/* Return the state size without partial block for block-only algorithms. */
+static inline unsigned int crypto_shash_coresize(struct crypto_shash *tfm)
+{
+ return crypto_shash_statesize(tfm) - crypto_shash_blocksize(tfm) - 1;
+}
+
+/* This can only be used if the request was never cloned. */
+#define HASH_REQUEST_ZERO(name) \
+ memzero_explicit(__##name##_req, sizeof(__##name##_req))
+
+/**
+ * crypto_ahash_export_core() - extract core state for message digest
+ * @req: reference to the ahash_request handle whose state is exported
+ * @out: output buffer of sufficient size that can hold the hash state
+ *
+ * Export the hash state without the partial block buffer.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the export creation was successful; < 0 if an error occurred
+ */
+int crypto_ahash_export_core(struct ahash_request *req, void *out);
+
+/**
+ * crypto_ahash_import_core() - import core state
+ * @req: reference to ahash_request handle the state is imported into
+ * @in: buffer holding the state
+ *
+ * Import the hash state without the partial block buffer.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the import was successful; < 0 if an error occurred
+ */
+int crypto_ahash_import_core(struct ahash_request *req, const void *in);
+
+/**
+ * crypto_shash_export_core() - extract core state for message digest
+ * @desc: reference to the operational state handle whose state is exported
+ * @out: output buffer of sufficient size that can hold the hash state
+ *
+ * Export the hash state without the partial block buffer.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the export creation was successful; < 0 if an error occurred
+ */
+int crypto_shash_export_core(struct shash_desc *desc, void *out);
+
+/**
+ * crypto_shash_import_core() - import core state
+ * @desc: reference to the operational state handle the state imported into
+ * @in: buffer holding the state
+ *
+ * Import the hash state without the partial block buffer.
+ *
+ * Context: Softirq or process context.
+ * Return: 0 if the import was successful; < 0 if an error occurred
+ */
+int crypto_shash_import_core(struct shash_desc *desc, const void *in);
+
+#endif /* _CRYPTO_INTERNAL_HASH_H */
+
diff --git a/include/crypto/internal/kdf_selftest.h b/include/crypto/internal/kdf_selftest.h
new file mode 100644
index 000000000..4d03d2af5
--- /dev/null
+++ b/include/crypto/internal/kdf_selftest.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (C) 2021, Stephan Mueller <smueller@chronox.de>
+ */
+
+#ifndef _CRYPTO_KDF_SELFTEST_H
+#define _CRYPTO_KDF_SELFTEST_H
+
+#include <crypto/hash.h>
+#include <linux/uio.h>
+
+struct kdf_testvec {
+ unsigned char *key;
+ size_t keylen;
+ unsigned char *ikm;
+ size_t ikmlen;
+ struct kvec info;
+ unsigned char *expected;
+ size_t expectedlen;
+};
+
+static inline int
+kdf_test(const struct kdf_testvec *test, const char *name,
+ int (*crypto_kdf_setkey)(struct crypto_shash *kmd,
+ const u8 *key, size_t keylen,
+ const u8 *ikm, size_t ikmlen),
+ int (*crypto_kdf_generate)(struct crypto_shash *kmd,
+ const struct kvec *info,
+ unsigned int info_nvec,
+ u8 *dst, unsigned int dlen))
+{
+ struct crypto_shash *kmd;
+ int ret;
+ u8 *buf = kzalloc(test->expectedlen, GFP_KERNEL);
+
+ if (!buf)
+ return -ENOMEM;
+
+ kmd = crypto_alloc_shash(name, 0, 0);
+ if (IS_ERR(kmd)) {
+ pr_err("alg: kdf: could not allocate hash handle for %s\n",
+ name);
+ kfree(buf);
+ return -ENOMEM;
+ }
+
+ ret = crypto_kdf_setkey(kmd, test->key, test->keylen,
+ test->ikm, test->ikmlen);
+ if (ret) {
+ pr_err("alg: kdf: could not set key derivation key\n");
+ goto err;
+ }
+
+ ret = crypto_kdf_generate(kmd, &test->info, 1, buf, test->expectedlen);
+ if (ret) {
+ pr_err("alg: kdf: could not obtain key data\n");
+ goto err;
+ }
+
+ ret = memcmp(test->expected, buf, test->expectedlen);
+ if (ret)
+ ret = -EINVAL;
+
+err:
+ crypto_free_shash(kmd);
+ kfree(buf);
+ return ret;
+}
+
+#endif /* _CRYPTO_KDF_SELFTEST_H */
diff --git a/include/crypto/internal/kpp.h b/include/crypto/internal/kpp.h
new file mode 100644
index 000000000..0a6db8c4a
--- /dev/null
+++ b/include/crypto/internal/kpp.h
@@ -0,0 +1,245 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Key-agreement Protocol Primitives (KPP)
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ */
+#ifndef _CRYPTO_KPP_INT_H
+#define _CRYPTO_KPP_INT_H
+#include <crypto/kpp.h>
+#include <crypto/algapi.h>
+
+/**
+ * struct kpp_instance - KPP template instance
+ * @free: Callback getting invoked upon instance destruction. Must be set.
+ * @s: Internal. Generic crypto core instance state properly layout
+ * to alias with @alg as needed.
+ * @alg: The &struct kpp_alg implementation provided by the instance.
+ */
+struct kpp_instance {
+ void (*free)(struct kpp_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct kpp_alg, base)];
+ struct crypto_instance base;
+ } s;
+ struct kpp_alg alg;
+ };
+};
+
+/**
+ * struct crypto_kpp_spawn - KPP algorithm spawn
+ * @base: Internal. Generic crypto core spawn state.
+ *
+ * Template instances can get a hold on some inner KPP algorithm by
+ * binding a &struct crypto_kpp_spawn via
+ * crypto_grab_kpp(). Transforms may subsequently get instantiated
+ * from the referenced inner &struct kpp_alg by means of
+ * crypto_spawn_kpp().
+ */
+struct crypto_kpp_spawn {
+ struct crypto_spawn base;
+};
+
+/*
+ * Transform internal helpers.
+ */
+static inline void *kpp_request_ctx(struct kpp_request *req)
+{
+ return req->__ctx;
+}
+
+static inline void *kpp_request_ctx_dma(struct kpp_request *req)
+{
+ unsigned int align = crypto_dma_align();
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(kpp_request_ctx(req), align);
+}
+
+static inline void kpp_set_reqsize(struct crypto_kpp *kpp,
+ unsigned int reqsize)
+{
+ kpp->reqsize = reqsize;
+}
+
+static inline void kpp_set_reqsize_dma(struct crypto_kpp *kpp,
+ unsigned int reqsize)
+{
+ reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
+ kpp->reqsize = reqsize;
+}
+
+static inline void *kpp_tfm_ctx(struct crypto_kpp *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void *kpp_tfm_ctx_dma(struct crypto_kpp *tfm)
+{
+ return crypto_tfm_ctx_dma(&tfm->base);
+}
+
+static inline void kpp_request_complete(struct kpp_request *req, int err)
+{
+ crypto_request_complete(&req->base, err);
+}
+
+static inline const char *kpp_alg_name(struct crypto_kpp *tfm)
+{
+ return crypto_kpp_tfm(tfm)->__crt_alg->cra_name;
+}
+
+/*
+ * Template instance internal helpers.
+ */
+/**
+ * kpp_crypto_instance() - Cast a &struct kpp_instance to the corresponding
+ * generic &struct crypto_instance.
+ * @inst: Pointer to the &struct kpp_instance to be cast.
+ * Return: A pointer to the &struct crypto_instance embedded in @inst.
+ */
+static inline struct crypto_instance *kpp_crypto_instance(
+ struct kpp_instance *inst)
+{
+ return &inst->s.base;
+}
+
+/**
+ * kpp_instance() - Cast a generic &struct crypto_instance to the corresponding
+ * &struct kpp_instance.
+ * @inst: Pointer to the &struct crypto_instance to be cast.
+ * Return: A pointer to the &struct kpp_instance @inst is embedded in.
+ */
+static inline struct kpp_instance *kpp_instance(struct crypto_instance *inst)
+{
+ return container_of(inst, struct kpp_instance, s.base);
+}
+
+/**
+ * kpp_alg_instance() - Get the &struct kpp_instance a given KPP transform has
+ * been instantiated from.
+ * @kpp: The KPP transform instantiated from some &struct kpp_instance.
+ * Return: The &struct kpp_instance associated with @kpp.
+ */
+static inline struct kpp_instance *kpp_alg_instance(struct crypto_kpp *kpp)
+{
+ return kpp_instance(crypto_tfm_alg_instance(&kpp->base));
+}
+
+/**
+ * kpp_instance_ctx() - Get a pointer to a &struct kpp_instance's implementation
+ * specific context data.
+ * @inst: The &struct kpp_instance whose context data to access.
+ *
+ * A KPP template implementation may allocate extra memory beyond the
+ * end of a &struct kpp_instance instantiated from &crypto_template.create().
+ * This function provides a means to obtain a pointer to this area.
+ *
+ * Return: A pointer to the implementation specific context data.
+ */
+static inline void *kpp_instance_ctx(struct kpp_instance *inst)
+{
+ return crypto_instance_ctx(kpp_crypto_instance(inst));
+}
+
+/*
+ * KPP algorithm (un)registration functions.
+ */
+/**
+ * crypto_register_kpp() -- Register key-agreement protocol primitives algorithm
+ *
+ * Function registers an implementation of a key-agreement protocol primitive
+ * algorithm
+ *
+ * @alg: algorithm definition
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_register_kpp(struct kpp_alg *alg);
+
+/**
+ * crypto_unregister_kpp() -- Unregister key-agreement protocol primitive
+ * algorithm
+ *
+ * Function unregisters an implementation of a key-agreement protocol primitive
+ * algorithm
+ *
+ * @alg: algorithm definition
+ */
+void crypto_unregister_kpp(struct kpp_alg *alg);
+
+/**
+ * kpp_register_instance() - Register a KPP template instance.
+ * @tmpl: The instantiating template.
+ * @inst: The KPP template instance to be registered.
+ * Return: %0 on success, negative error code otherwise.
+ */
+int kpp_register_instance(struct crypto_template *tmpl,
+ struct kpp_instance *inst);
+
+/*
+ * KPP spawn related functions.
+ */
+/**
+ * crypto_grab_kpp() - Look up a KPP algorithm and bind a spawn to it.
+ * @spawn: The KPP spawn to bind.
+ * @inst: The template instance owning @spawn.
+ * @name: The KPP algorithm name to look up.
+ * @type: The type bitset to pass on to the lookup.
+ * @mask: The mask bismask to pass on to the lookup.
+ * Return: %0 on success, a negative error code otherwise.
+ */
+int crypto_grab_kpp(struct crypto_kpp_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+/**
+ * crypto_drop_kpp() - Release a spawn previously bound via crypto_grab_kpp().
+ * @spawn: The spawn to release.
+ */
+static inline void crypto_drop_kpp(struct crypto_kpp_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+/**
+ * crypto_spawn_kpp_alg() - Get the algorithm a KPP spawn has been bound to.
+ * @spawn: The spawn to get the referenced &struct kpp_alg for.
+ *
+ * This function as well as the returned result are safe to use only
+ * after @spawn has been successfully bound via crypto_grab_kpp() and
+ * up to until the template instance owning @spawn has either been
+ * registered successfully or the spawn has been released again via
+ * crypto_drop_spawn().
+ *
+ * Return: A pointer to the &struct kpp_alg referenced from the spawn.
+ */
+static inline struct kpp_alg *crypto_spawn_kpp_alg(
+ struct crypto_kpp_spawn *spawn)
+{
+ return container_of(spawn->base.alg, struct kpp_alg, base);
+}
+
+/**
+ * crypto_spawn_kpp() - Create a transform from a KPP spawn.
+ * @spawn: The spawn previously bound to some &struct kpp_alg via
+ * crypto_grab_kpp().
+ *
+ * Once a &struct crypto_kpp_spawn has been successfully bound to a
+ * &struct kpp_alg via crypto_grab_kpp(), transforms for the latter
+ * may get instantiated from the former by means of this function.
+ *
+ * Return: A pointer to the freshly created KPP transform on success
+ * or an ``ERR_PTR()`` otherwise.
+ */
+static inline struct crypto_kpp *crypto_spawn_kpp(
+ struct crypto_kpp_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+#endif
diff --git a/include/crypto/internal/poly1305.h b/include/crypto/internal/poly1305.h
new file mode 100644
index 000000000..a72fff409
--- /dev/null
+++ b/include/crypto/internal/poly1305.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for the Poly1305 algorithm
+ */
+
+#ifndef _CRYPTO_INTERNAL_POLY1305_H
+#define _CRYPTO_INTERNAL_POLY1305_H
+
+#include <crypto/poly1305.h>
+#include <linux/types.h>
+
+/*
+ * Poly1305 core functions. These only accept whole blocks; the caller must
+ * handle any needed block buffering and padding. 'hibit' must be 1 for any
+ * full blocks, or 0 for the final block if it had to be padded. If 'nonce' is
+ * non-NULL, then it's added at the end to compute the Poly1305 MAC. Otherwise,
+ * only the ε-almost-∆-universal hash function (not the full MAC) is computed.
+ */
+
+void poly1305_core_setkey(struct poly1305_core_key *key,
+ const u8 raw_key[POLY1305_BLOCK_SIZE]);
+static inline void poly1305_core_init(struct poly1305_state *state)
+{
+ *state = (struct poly1305_state){};
+}
+
+void poly1305_core_blocks(struct poly1305_state *state,
+ const struct poly1305_core_key *key, const void *src,
+ unsigned int nblocks, u32 hibit);
+void poly1305_core_emit(const struct poly1305_state *state, const u32 nonce[4],
+ void *dst);
+
+static inline void
+poly1305_block_init_generic(struct poly1305_block_state *desc,
+ const u8 raw_key[POLY1305_BLOCK_SIZE])
+{
+ poly1305_core_init(&desc->h);
+ poly1305_core_setkey(&desc->core_r, raw_key);
+}
+
+static inline void poly1305_blocks_generic(struct poly1305_block_state *state,
+ const u8 *src, unsigned int len,
+ u32 padbit)
+{
+ poly1305_core_blocks(&state->h, &state->core_r, src,
+ len / POLY1305_BLOCK_SIZE, padbit);
+}
+
+static inline void poly1305_emit_generic(const struct poly1305_state *state,
+ u8 digest[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4])
+{
+ poly1305_core_emit(state, nonce, digest);
+}
+
+#endif
diff --git a/include/crypto/internal/rng.h b/include/crypto/internal/rng.h
new file mode 100644
index 000000000..e0711b6a5
--- /dev/null
+++ b/include/crypto/internal/rng.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * RNG: Random Number Generator algorithms under the crypto API
+ *
+ * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
+ * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_INTERNAL_RNG_H
+#define _CRYPTO_INTERNAL_RNG_H
+
+#include <crypto/algapi.h>
+#include <crypto/rng.h>
+
+int crypto_register_rng(struct rng_alg *alg);
+void crypto_unregister_rng(struct rng_alg *alg);
+int crypto_register_rngs(struct rng_alg *algs, int count);
+void crypto_unregister_rngs(struct rng_alg *algs, int count);
+
+#if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE)
+int crypto_del_default_rng(void);
+#else
+static inline int crypto_del_default_rng(void)
+{
+ return 0;
+}
+#endif
+
+static inline void *crypto_rng_ctx(struct crypto_rng *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void crypto_rng_set_entropy(struct crypto_rng *tfm,
+ const u8 *data, unsigned int len)
+{
+ crypto_rng_alg(tfm)->set_ent(tfm, data, len);
+}
+
+#endif
diff --git a/include/crypto/internal/rsa.h b/include/crypto/internal/rsa.h
new file mode 100644
index 000000000..071a1951b
--- /dev/null
+++ b/include/crypto/internal/rsa.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * RSA internal helpers
+ *
+ * Copyright (c) 2015, Intel Corporation
+ * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
+ */
+#ifndef _RSA_HELPER_
+#define _RSA_HELPER_
+#include <linux/types.h>
+#include <crypto/akcipher.h>
+
+/**
+ * rsa_key - RSA key structure
+ * @n : RSA modulus raw byte stream
+ * @e : RSA public exponent raw byte stream
+ * @d : RSA private exponent raw byte stream
+ * @p : RSA prime factor p of n raw byte stream
+ * @q : RSA prime factor q of n raw byte stream
+ * @dp : RSA exponent d mod (p - 1) raw byte stream
+ * @dq : RSA exponent d mod (q - 1) raw byte stream
+ * @qinv : RSA CRT coefficient q^(-1) mod p raw byte stream
+ * @n_sz : length in bytes of RSA modulus n
+ * @e_sz : length in bytes of RSA public exponent
+ * @d_sz : length in bytes of RSA private exponent
+ * @p_sz : length in bytes of p field
+ * @q_sz : length in bytes of q field
+ * @dp_sz : length in bytes of dp field
+ * @dq_sz : length in bytes of dq field
+ * @qinv_sz : length in bytes of qinv field
+ */
+struct rsa_key {
+ const u8 *n;
+ const u8 *e;
+ const u8 *d;
+ const u8 *p;
+ const u8 *q;
+ const u8 *dp;
+ const u8 *dq;
+ const u8 *qinv;
+ size_t n_sz;
+ size_t e_sz;
+ size_t d_sz;
+ size_t p_sz;
+ size_t q_sz;
+ size_t dp_sz;
+ size_t dq_sz;
+ size_t qinv_sz;
+};
+
+int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
+ unsigned int key_len);
+
+int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
+ unsigned int key_len);
+
+#define RSA_PUB (true)
+#define RSA_PRIV (false)
+
+static inline int rsa_set_key(struct crypto_akcipher *child,
+ unsigned int *key_size, bool is_pubkey,
+ const void *key, unsigned int keylen)
+{
+ int err;
+
+ *key_size = 0;
+
+ if (is_pubkey)
+ err = crypto_akcipher_set_pub_key(child, key, keylen);
+ else
+ err = crypto_akcipher_set_priv_key(child, key, keylen);
+ if (err)
+ return err;
+
+ /* Find out new modulus size from rsa implementation */
+ err = crypto_akcipher_maxsize(child);
+ if (err > PAGE_SIZE)
+ return -ENOTSUPP;
+
+ *key_size = err;
+ return 0;
+}
+
+extern struct crypto_template rsa_pkcs1pad_tmpl;
+extern struct crypto_template rsassa_pkcs1_tmpl;
+#endif
diff --git a/include/crypto/internal/scompress.h b/include/crypto/internal/scompress.h
new file mode 100644
index 000000000..13a0851a9
--- /dev/null
+++ b/include/crypto/internal/scompress.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Synchronous Compression operations
+ *
+ * Copyright 2015 LG Electronics Inc.
+ * Copyright (c) 2016, Intel Corporation
+ * Author: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
+ */
+#ifndef _CRYPTO_SCOMP_INT_H
+#define _CRYPTO_SCOMP_INT_H
+
+#include <crypto/internal/acompress.h>
+
+struct crypto_scomp {
+ struct crypto_tfm base;
+};
+
+/**
+ * struct scomp_alg - synchronous compression algorithm
+ *
+ * @compress: Function performs a compress operation
+ * @decompress: Function performs a de-compress operation
+ * @streams: Per-cpu memory for algorithm
+ * @calg: Cmonn algorithm data structure shared with acomp
+ * @COMP_ALG_COMMON: see struct comp_alg_common
+ */
+struct scomp_alg {
+ int (*compress)(struct crypto_scomp *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen,
+ void *ctx);
+ int (*decompress)(struct crypto_scomp *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen,
+ void *ctx);
+
+ struct crypto_acomp_streams streams;
+
+ union {
+ struct COMP_ALG_COMMON;
+ struct comp_alg_common calg;
+ };
+};
+
+static inline struct scomp_alg *__crypto_scomp_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct scomp_alg, base);
+}
+
+static inline struct crypto_scomp *__crypto_scomp_tfm(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_scomp, base);
+}
+
+static inline struct crypto_tfm *crypto_scomp_tfm(struct crypto_scomp *tfm)
+{
+ return &tfm->base;
+}
+
+static inline void crypto_free_scomp(struct crypto_scomp *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_scomp_tfm(tfm));
+}
+
+static inline struct scomp_alg *crypto_scomp_alg(struct crypto_scomp *tfm)
+{
+ return __crypto_scomp_alg(crypto_scomp_tfm(tfm)->__crt_alg);
+}
+
+static inline int crypto_scomp_compress(struct crypto_scomp *tfm,
+ const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int *dlen, void *ctx)
+{
+ return crypto_scomp_alg(tfm)->compress(tfm, src, slen, dst, dlen, ctx);
+}
+
+static inline int crypto_scomp_decompress(struct crypto_scomp *tfm,
+ const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int *dlen,
+ void *ctx)
+{
+ return crypto_scomp_alg(tfm)->decompress(tfm, src, slen, dst, dlen,
+ ctx);
+}
+
+/**
+ * crypto_register_scomp() -- Register synchronous compression algorithm
+ *
+ * Function registers an implementation of a synchronous
+ * compression algorithm
+ *
+ * @alg: algorithm definition
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_register_scomp(struct scomp_alg *alg);
+
+/**
+ * crypto_unregister_scomp() -- Unregister synchronous compression algorithm
+ *
+ * Function unregisters an implementation of a synchronous
+ * compression algorithm
+ *
+ * @alg: algorithm definition
+ */
+void crypto_unregister_scomp(struct scomp_alg *alg);
+
+int crypto_register_scomps(struct scomp_alg *algs, int count);
+void crypto_unregister_scomps(struct scomp_alg *algs, int count);
+
+#endif
diff --git a/include/crypto/internal/sig.h b/include/crypto/internal/sig.h
new file mode 100644
index 000000000..b16648c1a
--- /dev/null
+++ b/include/crypto/internal/sig.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Public Key Signature Algorithm
+ *
+ * Copyright (c) 2023 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_INTERNAL_SIG_H
+#define _CRYPTO_INTERNAL_SIG_H
+
+#include <crypto/algapi.h>
+#include <crypto/sig.h>
+
+struct sig_instance {
+ void (*free)(struct sig_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct sig_alg, base)];
+ struct crypto_instance base;
+ };
+ struct sig_alg alg;
+ };
+};
+
+struct crypto_sig_spawn {
+ struct crypto_spawn base;
+};
+
+static inline void *crypto_sig_ctx(struct crypto_sig *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+/**
+ * crypto_register_sig() -- Register public key signature algorithm
+ *
+ * Function registers an implementation of a public key signature algorithm
+ *
+ * @alg: algorithm definition
+ *
+ * Return: zero on success; error code in case of error
+ */
+int crypto_register_sig(struct sig_alg *alg);
+
+/**
+ * crypto_unregister_sig() -- Unregister public key signature algorithm
+ *
+ * Function unregisters an implementation of a public key signature algorithm
+ *
+ * @alg: algorithm definition
+ */
+void crypto_unregister_sig(struct sig_alg *alg);
+
+int sig_register_instance(struct crypto_template *tmpl,
+ struct sig_instance *inst);
+
+static inline struct sig_instance *sig_instance(struct crypto_instance *inst)
+{
+ return container_of(&inst->alg, struct sig_instance, alg.base);
+}
+
+static inline struct sig_instance *sig_alg_instance(struct crypto_sig *tfm)
+{
+ return sig_instance(crypto_tfm_alg_instance(&tfm->base));
+}
+
+static inline struct crypto_instance *sig_crypto_instance(struct sig_instance
+ *inst)
+{
+ return container_of(&inst->alg.base, struct crypto_instance, alg);
+}
+
+static inline void *sig_instance_ctx(struct sig_instance *inst)
+{
+ return crypto_instance_ctx(sig_crypto_instance(inst));
+}
+
+int crypto_grab_sig(struct crypto_sig_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline struct crypto_sig *crypto_spawn_sig(struct crypto_sig_spawn
+ *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline void crypto_drop_sig(struct crypto_sig_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct sig_alg *crypto_spawn_sig_alg(struct crypto_sig_spawn
+ *spawn)
+{
+ return container_of(spawn->base.alg, struct sig_alg, base);
+}
+#endif
diff --git a/include/crypto/internal/simd.h b/include/crypto/internal/simd.h
new file mode 100644
index 000000000..f5e5d7b63
--- /dev/null
+++ b/include/crypto/internal/simd.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Shared crypto simd helpers
+ */
+
+#ifndef _CRYPTO_INTERNAL_SIMD_H
+#define _CRYPTO_INTERNAL_SIMD_H
+
+#include <asm/simd.h>
+#include <linux/percpu.h>
+#include <linux/types.h>
+
+struct simd_aead_alg;
+struct aead_alg;
+
+int simd_register_aeads_compat(struct aead_alg *algs, int count,
+ struct simd_aead_alg **simd_algs);
+
+void simd_unregister_aeads(struct aead_alg *algs, int count,
+ struct simd_aead_alg **simd_algs);
+
+/*
+ * crypto_simd_usable() - is it allowed at this time to use SIMD instructions or
+ * access the SIMD register file?
+ *
+ * This delegates to may_use_simd(), except that this also returns false if SIMD
+ * in crypto code has been temporarily disabled on this CPU by the crypto
+ * self-tests, in order to test the no-SIMD fallback code. This override is
+ * currently limited to configurations where the "full" self-tests are enabled,
+ * because it might be a bit too invasive to be part of the "fast" self-tests.
+ */
+#ifdef CONFIG_CRYPTO_SELFTESTS_FULL
+DECLARE_PER_CPU(bool, crypto_simd_disabled_for_test);
+#define crypto_simd_usable() \
+ (may_use_simd() && !this_cpu_read(crypto_simd_disabled_for_test))
+#else
+#define crypto_simd_usable() may_use_simd()
+#endif
+
+#endif /* _CRYPTO_INTERNAL_SIMD_H */
diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h
new file mode 100644
index 000000000..a965b6aab
--- /dev/null
+++ b/include/crypto/internal/skcipher.h
@@ -0,0 +1,315 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Symmetric key ciphers.
+ *
+ * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_INTERNAL_SKCIPHER_H
+#define _CRYPTO_INTERNAL_SKCIPHER_H
+
+#include <crypto/algapi.h>
+#include <crypto/internal/cipher.h>
+#include <crypto/skcipher.h>
+#include <linux/types.h>
+
+/*
+ * Set this if your algorithm is sync but needs a reqsize larger
+ * than MAX_SYNC_SKCIPHER_REQSIZE.
+ *
+ * Reuse bit that is specific to hash algorithms.
+ */
+#define CRYPTO_ALG_SKCIPHER_REQSIZE_LARGE CRYPTO_ALG_OPTIONAL_KEY
+
+struct aead_request;
+struct rtattr;
+
+struct skcipher_instance {
+ void (*free)(struct skcipher_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct skcipher_alg, base)];
+ struct crypto_instance base;
+ } s;
+ struct skcipher_alg alg;
+ };
+};
+
+struct lskcipher_instance {
+ void (*free)(struct lskcipher_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct lskcipher_alg, co.base)];
+ struct crypto_instance base;
+ } s;
+ struct lskcipher_alg alg;
+ };
+};
+
+struct crypto_skcipher_spawn {
+ struct crypto_spawn base;
+};
+
+struct crypto_lskcipher_spawn {
+ struct crypto_spawn base;
+};
+
+struct skcipher_walk {
+ union {
+ /* Virtual address of the source. */
+ struct {
+ struct {
+ const void *const addr;
+ } virt;
+ } src;
+
+ /* Private field for the API, do not use. */
+ struct scatter_walk in;
+ };
+
+ union {
+ /* Virtual address of the destination. */
+ struct {
+ struct {
+ void *const addr;
+ } virt;
+ } dst;
+
+ /* Private field for the API, do not use. */
+ struct scatter_walk out;
+ };
+
+ unsigned int nbytes;
+ unsigned int total;
+
+ u8 *page;
+ u8 *buffer;
+ u8 *oiv;
+ void *iv;
+
+ unsigned int ivsize;
+
+ int flags;
+ unsigned int blocksize;
+ unsigned int stride;
+ unsigned int alignmask;
+};
+
+static inline struct crypto_instance *skcipher_crypto_instance(
+ struct skcipher_instance *inst)
+{
+ return &inst->s.base;
+}
+
+static inline struct crypto_instance *lskcipher_crypto_instance(
+ struct lskcipher_instance *inst)
+{
+ return &inst->s.base;
+}
+
+static inline struct skcipher_instance *skcipher_alg_instance(
+ struct crypto_skcipher *skcipher)
+{
+ return container_of(crypto_skcipher_alg(skcipher),
+ struct skcipher_instance, alg);
+}
+
+static inline struct lskcipher_instance *lskcipher_alg_instance(
+ struct crypto_lskcipher *lskcipher)
+{
+ return container_of(crypto_lskcipher_alg(lskcipher),
+ struct lskcipher_instance, alg);
+}
+
+static inline void *skcipher_instance_ctx(struct skcipher_instance *inst)
+{
+ return crypto_instance_ctx(skcipher_crypto_instance(inst));
+}
+
+static inline void *lskcipher_instance_ctx(struct lskcipher_instance *inst)
+{
+ return crypto_instance_ctx(lskcipher_crypto_instance(inst));
+}
+
+static inline void skcipher_request_complete(struct skcipher_request *req, int err)
+{
+ crypto_request_complete(&req->base, err);
+}
+
+int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+int crypto_grab_lskcipher(struct crypto_lskcipher_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline void crypto_drop_lskcipher(struct crypto_lskcipher_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct lskcipher_alg *crypto_lskcipher_spawn_alg(
+ struct crypto_lskcipher_spawn *spawn)
+{
+ return container_of(spawn->base.alg, struct lskcipher_alg, co.base);
+}
+
+static inline struct skcipher_alg_common *crypto_spawn_skcipher_alg_common(
+ struct crypto_skcipher_spawn *spawn)
+{
+ return container_of(spawn->base.alg, struct skcipher_alg_common, base);
+}
+
+static inline struct lskcipher_alg *crypto_spawn_lskcipher_alg(
+ struct crypto_lskcipher_spawn *spawn)
+{
+ return crypto_lskcipher_spawn_alg(spawn);
+}
+
+static inline struct crypto_skcipher *crypto_spawn_skcipher(
+ struct crypto_skcipher_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline struct crypto_lskcipher *crypto_spawn_lskcipher(
+ struct crypto_lskcipher_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline void crypto_skcipher_set_reqsize(
+ struct crypto_skcipher *skcipher, unsigned int reqsize)
+{
+ skcipher->reqsize = reqsize;
+}
+
+static inline void crypto_skcipher_set_reqsize_dma(
+ struct crypto_skcipher *skcipher, unsigned int reqsize)
+{
+ reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
+ skcipher->reqsize = reqsize;
+}
+
+int crypto_register_skcipher(struct skcipher_alg *alg);
+void crypto_unregister_skcipher(struct skcipher_alg *alg);
+int crypto_register_skciphers(struct skcipher_alg *algs, int count);
+void crypto_unregister_skciphers(struct skcipher_alg *algs, int count);
+int skcipher_register_instance(struct crypto_template *tmpl,
+ struct skcipher_instance *inst);
+
+int crypto_register_lskcipher(struct lskcipher_alg *alg);
+void crypto_unregister_lskcipher(struct lskcipher_alg *alg);
+int crypto_register_lskciphers(struct lskcipher_alg *algs, int count);
+void crypto_unregister_lskciphers(struct lskcipher_alg *algs, int count);
+int lskcipher_register_instance(struct crypto_template *tmpl,
+ struct lskcipher_instance *inst);
+
+int skcipher_walk_done(struct skcipher_walk *walk, int res);
+int skcipher_walk_virt(struct skcipher_walk *__restrict walk,
+ struct skcipher_request *__restrict req,
+ bool atomic);
+int skcipher_walk_aead_encrypt(struct skcipher_walk *__restrict walk,
+ struct aead_request *__restrict req,
+ bool atomic);
+int skcipher_walk_aead_decrypt(struct skcipher_walk *__restrict walk,
+ struct aead_request *__restrict req,
+ bool atomic);
+
+static inline void skcipher_walk_abort(struct skcipher_walk *walk)
+{
+ skcipher_walk_done(walk, -ECANCELED);
+}
+
+static inline void *crypto_skcipher_ctx(struct crypto_skcipher *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void *crypto_lskcipher_ctx(struct crypto_lskcipher *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void *crypto_skcipher_ctx_dma(struct crypto_skcipher *tfm)
+{
+ return crypto_tfm_ctx_dma(&tfm->base);
+}
+
+static inline bool crypto_skcipher_tested(struct crypto_skcipher *tfm)
+{
+ struct crypto_tfm *tfm_base = crypto_skcipher_tfm(tfm);
+
+ return tfm_base->__crt_alg->cra_flags & CRYPTO_ALG_TESTED;
+}
+
+static inline void *skcipher_request_ctx(struct skcipher_request *req)
+{
+ return req->__ctx;
+}
+
+static inline void *skcipher_request_ctx_dma(struct skcipher_request *req)
+{
+ unsigned int align = crypto_dma_align();
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(skcipher_request_ctx(req), align);
+}
+
+static inline u32 skcipher_request_flags(struct skcipher_request *req)
+{
+ return req->base.flags;
+}
+
+/* Helpers for simple block cipher modes of operation */
+struct skcipher_ctx_simple {
+ struct crypto_cipher *cipher; /* underlying block cipher */
+};
+static inline struct crypto_cipher *
+skcipher_cipher_simple(struct crypto_skcipher *tfm)
+{
+ struct skcipher_ctx_simple *ctx = crypto_skcipher_ctx(tfm);
+
+ return ctx->cipher;
+}
+
+struct skcipher_instance *skcipher_alloc_instance_simple(
+ struct crypto_template *tmpl, struct rtattr **tb);
+
+static inline struct crypto_alg *skcipher_ialg_simple(
+ struct skcipher_instance *inst)
+{
+ struct crypto_cipher_spawn *spawn = skcipher_instance_ctx(inst);
+
+ return crypto_spawn_cipher_alg(spawn);
+}
+
+static inline struct crypto_lskcipher *lskcipher_cipher_simple(
+ struct crypto_lskcipher *tfm)
+{
+ struct crypto_lskcipher **ctx = crypto_lskcipher_ctx(tfm);
+
+ return *ctx;
+}
+
+struct lskcipher_instance *lskcipher_alloc_instance_simple(
+ struct crypto_template *tmpl, struct rtattr **tb);
+
+static inline struct lskcipher_alg *lskcipher_ialg_simple(
+ struct lskcipher_instance *inst)
+{
+ struct crypto_lskcipher_spawn *spawn = lskcipher_instance_ctx(inst);
+
+ return crypto_lskcipher_spawn_alg(spawn);
+}
+
+#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */
+
diff --git a/include/crypto/kdf_sp800108.h b/include/crypto/kdf_sp800108.h
new file mode 100644
index 000000000..b7b20a778
--- /dev/null
+++ b/include/crypto/kdf_sp800108.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (C) 2021, Stephan Mueller <smueller@chronox.de>
+ */
+
+#ifndef _CRYPTO_KDF108_H
+#define _CRYPTO_KDF108_H
+
+#include <crypto/hash.h>
+#include <linux/uio.h>
+
+/**
+ * Counter KDF generate operation according to SP800-108 section 5.1
+ * as well as SP800-56A section 5.8.1 (Single-step KDF).
+ *
+ * @kmd Keyed message digest whose key was set with crypto_kdf108_setkey or
+ * unkeyed message digest
+ * @info optional context and application specific information - this may be
+ * NULL
+ * @info_vec number of optional context/application specific information entries
+ * @dst destination buffer that the caller already allocated
+ * @dlen length of the destination buffer - the KDF derives that amount of
+ * bytes.
+ *
+ * To comply with SP800-108, the caller must provide Label || 0x00 || Context
+ * in the info parameter.
+ *
+ * @return 0 on success, < 0 on error
+ */
+int crypto_kdf108_ctr_generate(struct crypto_shash *kmd,
+ const struct kvec *info, unsigned int info_nvec,
+ u8 *dst, unsigned int dlen);
+
+/**
+ * Counter KDF setkey operation
+ *
+ * @kmd Keyed message digest allocated by the caller. The key should not have
+ * been set.
+ * @key Seed key to be used to initialize the keyed message digest context.
+ * @keylen This length of the key buffer.
+ * @ikm The SP800-108 KDF does not support IKM - this parameter must be NULL
+ * @ikmlen This parameter must be 0.
+ *
+ * According to SP800-108 section 7.2, the seed key must be at least as large as
+ * the message digest size of the used keyed message digest. This limitation
+ * is enforced by the implementation.
+ *
+ * SP800-108 allows the use of either a HMAC or a hash primitive. When
+ * the caller intends to use a hash primitive, the call to
+ * crypto_kdf108_setkey is not required and the key derivation operation can
+ * immediately performed using crypto_kdf108_ctr_generate after allocating
+ * a handle.
+ *
+ * @return 0 on success, < 0 on error
+ */
+int crypto_kdf108_setkey(struct crypto_shash *kmd,
+ const u8 *key, size_t keylen,
+ const u8 *ikm, size_t ikmlen);
+
+#endif /* _CRYPTO_KDF108_H */
diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
new file mode 100644
index 000000000..2d9c4de57
--- /dev/null
+++ b/include/crypto/kpp.h
@@ -0,0 +1,350 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Key-agreement Protocol Primitives (KPP)
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ */
+
+#ifndef _CRYPTO_KPP_
+#define _CRYPTO_KPP_
+
+#include <linux/atomic.h>
+#include <linux/container_of.h>
+#include <linux/crypto.h>
+#include <linux/slab.h>
+
+/**
+ * struct kpp_request
+ *
+ * @base: Common attributes for async crypto requests
+ * @src: Source data
+ * @dst: Destination data
+ * @src_len: Size of the input buffer
+ * @dst_len: Size of the output buffer. It needs to be at least
+ * as big as the expected result depending on the operation
+ * After operation it will be updated with the actual size of the
+ * result. In case of error where the dst sgl size was insufficient,
+ * it will be updated to the size required for the operation.
+ * @__ctx: Start of private context data
+ */
+struct kpp_request {
+ struct crypto_async_request base;
+ struct scatterlist *src;
+ struct scatterlist *dst;
+ unsigned int src_len;
+ unsigned int dst_len;
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ * struct crypto_kpp - user-instantiated object which encapsulate
+ * algorithms and core processing logic
+ *
+ * @reqsize: Request context size required by algorithm
+ * implementation
+ * @base: Common crypto API algorithm data structure
+ */
+struct crypto_kpp {
+ unsigned int reqsize;
+
+ struct crypto_tfm base;
+};
+
+/**
+ * struct kpp_alg - generic key-agreement protocol primitives
+ *
+ * @set_secret: Function invokes the protocol specific function to
+ * store the secret private key along with parameters.
+ * The implementation knows how to decode the buffer
+ * @generate_public_key: Function generate the public key to be sent to the
+ * counterpart. In case of error, where output is not big
+ * enough req->dst_len will be updated to the size
+ * required
+ * @compute_shared_secret: Function compute the shared secret as defined by
+ * the algorithm. The result is given back to the user.
+ * In case of error, where output is not big enough,
+ * req->dst_len will be updated to the size required
+ * @max_size: Function returns the size of the output buffer
+ * @init: Initialize the object. This is called only once at
+ * instantiation time. In case the cryptographic hardware
+ * needs to be initialized. Software fallback should be
+ * put in place here.
+ * @exit: Undo everything @init did.
+ *
+ * @base: Common crypto API algorithm data structure
+ */
+struct kpp_alg {
+ int (*set_secret)(struct crypto_kpp *tfm, const void *buffer,
+ unsigned int len);
+ int (*generate_public_key)(struct kpp_request *req);
+ int (*compute_shared_secret)(struct kpp_request *req);
+
+ unsigned int (*max_size)(struct crypto_kpp *tfm);
+
+ int (*init)(struct crypto_kpp *tfm);
+ void (*exit)(struct crypto_kpp *tfm);
+
+ struct crypto_alg base;
+};
+
+/**
+ * DOC: Generic Key-agreement Protocol Primitives API
+ *
+ * The KPP API is used with the algorithm type
+ * CRYPTO_ALG_TYPE_KPP (listed as type "kpp" in /proc/crypto)
+ */
+
+/**
+ * crypto_alloc_kpp() - allocate KPP tfm handle
+ * @alg_name: is the name of the kpp algorithm (e.g. "dh", "ecdh")
+ * @type: specifies the type of the algorithm
+ * @mask: specifies the mask for the algorithm
+ *
+ * Allocate a handle for kpp algorithm. The returned struct crypto_kpp
+ * is required for any following API invocation
+ *
+ * Return: allocated handle in case of success; IS_ERR() is true in case of
+ * an error, PTR_ERR() returns the error code.
+ */
+struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask);
+
+int crypto_has_kpp(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_kpp_tfm(struct crypto_kpp *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct kpp_alg *__crypto_kpp_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct kpp_alg, base);
+}
+
+static inline struct crypto_kpp *__crypto_kpp_tfm(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_kpp, base);
+}
+
+static inline struct kpp_alg *crypto_kpp_alg(struct crypto_kpp *tfm)
+{
+ return __crypto_kpp_alg(crypto_kpp_tfm(tfm)->__crt_alg);
+}
+
+static inline unsigned int crypto_kpp_reqsize(struct crypto_kpp *tfm)
+{
+ return tfm->reqsize;
+}
+
+static inline void kpp_request_set_tfm(struct kpp_request *req,
+ struct crypto_kpp *tfm)
+{
+ req->base.tfm = crypto_kpp_tfm(tfm);
+}
+
+static inline struct crypto_kpp *crypto_kpp_reqtfm(struct kpp_request *req)
+{
+ return __crypto_kpp_tfm(req->base.tfm);
+}
+
+static inline u32 crypto_kpp_get_flags(struct crypto_kpp *tfm)
+{
+ return crypto_tfm_get_flags(crypto_kpp_tfm(tfm));
+}
+
+static inline void crypto_kpp_set_flags(struct crypto_kpp *tfm, u32 flags)
+{
+ crypto_tfm_set_flags(crypto_kpp_tfm(tfm), flags);
+}
+
+/**
+ * crypto_free_kpp() - free KPP tfm handle
+ *
+ * @tfm: KPP tfm handle allocated with crypto_alloc_kpp()
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_kpp(struct crypto_kpp *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_kpp_tfm(tfm));
+}
+
+/**
+ * kpp_request_alloc() - allocates kpp request
+ *
+ * @tfm: KPP tfm handle allocated with crypto_alloc_kpp()
+ * @gfp: allocation flags
+ *
+ * Return: allocated handle in case of success or NULL in case of an error.
+ */
+static inline struct kpp_request *kpp_request_alloc(struct crypto_kpp *tfm,
+ gfp_t gfp)
+{
+ struct kpp_request *req;
+
+ req = kmalloc(sizeof(*req) + crypto_kpp_reqsize(tfm), gfp);
+ if (likely(req))
+ kpp_request_set_tfm(req, tfm);
+
+ return req;
+}
+
+/**
+ * kpp_request_free() - zeroize and free kpp request
+ *
+ * @req: request to free
+ */
+static inline void kpp_request_free(struct kpp_request *req)
+{
+ kfree_sensitive(req);
+}
+
+/**
+ * kpp_request_set_callback() - Sets an asynchronous callback.
+ *
+ * Callback will be called when an asynchronous operation on a given
+ * request is finished.
+ *
+ * @req: request that the callback will be set for
+ * @flgs: specify for instance if the operation may backlog
+ * @cmpl: callback which will be called
+ * @data: private data used by the caller
+ */
+static inline void kpp_request_set_callback(struct kpp_request *req,
+ u32 flgs,
+ crypto_completion_t cmpl,
+ void *data)
+{
+ req->base.complete = cmpl;
+ req->base.data = data;
+ req->base.flags = flgs;
+}
+
+/**
+ * kpp_request_set_input() - Sets input buffer
+ *
+ * Sets parameters required by generate_public_key
+ *
+ * @req: kpp request
+ * @input: ptr to input scatter list
+ * @input_len: size of the input scatter list
+ */
+static inline void kpp_request_set_input(struct kpp_request *req,
+ struct scatterlist *input,
+ unsigned int input_len)
+{
+ req->src = input;
+ req->src_len = input_len;
+}
+
+/**
+ * kpp_request_set_output() - Sets output buffer
+ *
+ * Sets parameters required by kpp operation
+ *
+ * @req: kpp request
+ * @output: ptr to output scatter list
+ * @output_len: size of the output scatter list
+ */
+static inline void kpp_request_set_output(struct kpp_request *req,
+ struct scatterlist *output,
+ unsigned int output_len)
+{
+ req->dst = output;
+ req->dst_len = output_len;
+}
+
+enum {
+ CRYPTO_KPP_SECRET_TYPE_UNKNOWN,
+ CRYPTO_KPP_SECRET_TYPE_DH,
+ CRYPTO_KPP_SECRET_TYPE_ECDH,
+};
+
+/**
+ * struct kpp_secret - small header for packing secret buffer
+ *
+ * @type: define type of secret. Each kpp type will define its own
+ * @len: specify the len of the secret, include the header, that
+ * follows the struct
+ */
+struct kpp_secret {
+ unsigned short type;
+ unsigned short len;
+};
+
+/**
+ * crypto_kpp_set_secret() - Invoke kpp operation
+ *
+ * Function invokes the specific kpp operation for a given alg.
+ *
+ * @tfm: tfm handle
+ * @buffer: Buffer holding the packet representation of the private
+ * key. The structure of the packet key depends on the particular
+ * KPP implementation. Packing and unpacking helpers are provided
+ * for ECDH and DH (see the respective header files for those
+ * implementations).
+ * @len: Length of the packet private key buffer.
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_kpp_set_secret(struct crypto_kpp *tfm,
+ const void *buffer, unsigned int len)
+{
+ return crypto_kpp_alg(tfm)->set_secret(tfm, buffer, len);
+}
+
+/**
+ * crypto_kpp_generate_public_key() - Invoke kpp operation
+ *
+ * Function invokes the specific kpp operation for generating the public part
+ * for a given kpp algorithm.
+ *
+ * To generate a private key, the caller should use a random number generator.
+ * The output of the requested length serves as the private key.
+ *
+ * @req: kpp key request
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_kpp_generate_public_key(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+
+ return crypto_kpp_alg(tfm)->generate_public_key(req);
+}
+
+/**
+ * crypto_kpp_compute_shared_secret() - Invoke kpp operation
+ *
+ * Function invokes the specific kpp operation for computing the shared secret
+ * for a given kpp algorithm.
+ *
+ * @req: kpp key request
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_kpp_compute_shared_secret(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+
+ return crypto_kpp_alg(tfm)->compute_shared_secret(req);
+}
+
+/**
+ * crypto_kpp_maxsize() - Get len for output buffer
+ *
+ * Function returns the output buffer size required for a given key.
+ * Function assumes that the key is already set in the transformation. If this
+ * function is called without a setkey or with a failed setkey, you will end up
+ * in a NULL dereference.
+ *
+ * @tfm: KPP tfm handle allocated with crypto_alloc_kpp()
+ */
+static inline unsigned int crypto_kpp_maxsize(struct crypto_kpp *tfm)
+{
+ struct kpp_alg *alg = crypto_kpp_alg(tfm);
+
+ return alg->max_size(tfm);
+}
+
+#endif
diff --git a/include/crypto/krb5.h b/include/crypto/krb5.h
new file mode 100644
index 000000000..aac3ecf88
--- /dev/null
+++ b/include/crypto/krb5.h
@@ -0,0 +1,168 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Kerberos 5 crypto
+ *
+ * Copyright (C) 2025 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _CRYPTO_KRB5_H
+#define _CRYPTO_KRB5_H
+
+#include <linux/crypto.h>
+#include <crypto/aead.h>
+#include <crypto/hash.h>
+
+struct crypto_shash;
+struct scatterlist;
+
+/*
+ * Per Kerberos v5 protocol spec crypto types from the wire. These get mapped
+ * to linux kernel crypto routines.
+ */
+#define KRB5_ENCTYPE_NULL 0x0000
+#define KRB5_ENCTYPE_DES_CBC_CRC 0x0001 /* DES cbc mode with CRC-32 */
+#define KRB5_ENCTYPE_DES_CBC_MD4 0x0002 /* DES cbc mode with RSA-MD4 */
+#define KRB5_ENCTYPE_DES_CBC_MD5 0x0003 /* DES cbc mode with RSA-MD5 */
+#define KRB5_ENCTYPE_DES_CBC_RAW 0x0004 /* DES cbc mode raw */
+/* XXX deprecated? */
+#define KRB5_ENCTYPE_DES3_CBC_SHA 0x0005 /* DES-3 cbc mode with NIST-SHA */
+#define KRB5_ENCTYPE_DES3_CBC_RAW 0x0006 /* DES-3 cbc mode raw */
+#define KRB5_ENCTYPE_DES_HMAC_SHA1 0x0008
+#define KRB5_ENCTYPE_DES3_CBC_SHA1 0x0010
+#define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96 0x0011
+#define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96 0x0012
+#define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA256_128 0x0013
+#define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA384_192 0x0014
+#define KRB5_ENCTYPE_ARCFOUR_HMAC 0x0017
+#define KRB5_ENCTYPE_ARCFOUR_HMAC_EXP 0x0018
+#define KRB5_ENCTYPE_CAMELLIA128_CTS_CMAC 0x0019
+#define KRB5_ENCTYPE_CAMELLIA256_CTS_CMAC 0x001a
+#define KRB5_ENCTYPE_UNKNOWN 0x01ff
+
+#define KRB5_CKSUMTYPE_CRC32 0x0001
+#define KRB5_CKSUMTYPE_RSA_MD4 0x0002
+#define KRB5_CKSUMTYPE_RSA_MD4_DES 0x0003
+#define KRB5_CKSUMTYPE_DESCBC 0x0004
+#define KRB5_CKSUMTYPE_RSA_MD5 0x0007
+#define KRB5_CKSUMTYPE_RSA_MD5_DES 0x0008
+#define KRB5_CKSUMTYPE_NIST_SHA 0x0009
+#define KRB5_CKSUMTYPE_HMAC_SHA1_DES3 0x000c
+#define KRB5_CKSUMTYPE_HMAC_SHA1_96_AES128 0x000f
+#define KRB5_CKSUMTYPE_HMAC_SHA1_96_AES256 0x0010
+#define KRB5_CKSUMTYPE_CMAC_CAMELLIA128 0x0011
+#define KRB5_CKSUMTYPE_CMAC_CAMELLIA256 0x0012
+#define KRB5_CKSUMTYPE_HMAC_SHA256_128_AES128 0x0013
+#define KRB5_CKSUMTYPE_HMAC_SHA384_192_AES256 0x0014
+#define KRB5_CKSUMTYPE_HMAC_MD5_ARCFOUR -138 /* Microsoft md5 hmac cksumtype */
+
+/*
+ * Constants used for key derivation
+ */
+/* from rfc3961 */
+#define KEY_USAGE_SEED_CHECKSUM (0x99)
+#define KEY_USAGE_SEED_ENCRYPTION (0xAA)
+#define KEY_USAGE_SEED_INTEGRITY (0x55)
+
+/*
+ * Standard Kerberos error codes.
+ */
+#define KRB5_PROG_KEYTYPE_NOSUPP -1765328233
+
+/*
+ * Mode of operation.
+ */
+enum krb5_crypto_mode {
+ KRB5_CHECKSUM_MODE, /* Checksum only */
+ KRB5_ENCRYPT_MODE, /* Fully encrypted, possibly with integrity checksum */
+};
+
+struct krb5_buffer {
+ unsigned int len;
+ void *data;
+};
+
+/*
+ * Kerberos encoding type definition.
+ */
+struct krb5_enctype {
+ int etype; /* Encryption (key) type */
+ int ctype; /* Checksum type */
+ const char *name; /* "Friendly" name */
+ const char *encrypt_name; /* Crypto encrypt+checksum name */
+ const char *cksum_name; /* Crypto checksum name */
+ const char *hash_name; /* Crypto hash name */
+ const char *derivation_enc; /* Cipher used in key derivation */
+ u16 block_len; /* Length of encryption block */
+ u16 conf_len; /* Length of confounder (normally == block_len) */
+ u16 cksum_len; /* Length of checksum */
+ u16 key_bytes; /* Length of raw key, in bytes */
+ u16 key_len; /* Length of final key, in bytes */
+ u16 hash_len; /* Length of hash in bytes */
+ u16 prf_len; /* Length of PRF() result in bytes */
+ u16 Kc_len; /* Length of Kc in bytes */
+ u16 Ke_len; /* Length of Ke in bytes */
+ u16 Ki_len; /* Length of Ki in bytes */
+ bool keyed_cksum; /* T if a keyed cksum */
+
+ const struct krb5_crypto_profile *profile;
+
+ int (*random_to_key)(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *in,
+ struct krb5_buffer *out); /* complete key generation */
+};
+
+/*
+ * krb5_api.c
+ */
+const struct krb5_enctype *crypto_krb5_find_enctype(u32 enctype);
+size_t crypto_krb5_how_much_buffer(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t data_size, size_t *_offset);
+size_t crypto_krb5_how_much_data(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t *_buffer_size, size_t *_offset);
+int crypto_krb5_where_is_the_data(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t *_offset, size_t *_len);
+int crypto_krb5_check_data_len(const struct krb5_enctype *krb5,
+ enum krb5_crypto_mode mode,
+ size_t len, size_t min_content);
+struct crypto_aead *crypto_krb5_prepare_encryption(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *TK,
+ u32 usage, gfp_t gfp);
+struct crypto_shash *crypto_krb5_prepare_checksum(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *TK,
+ u32 usage, gfp_t gfp);
+ssize_t crypto_krb5_encrypt(const struct krb5_enctype *krb5,
+ struct crypto_aead *aead,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t sg_len,
+ size_t data_offset, size_t data_len,
+ bool preconfounded);
+int crypto_krb5_decrypt(const struct krb5_enctype *krb5,
+ struct crypto_aead *aead,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t *_offset, size_t *_len);
+ssize_t crypto_krb5_get_mic(const struct krb5_enctype *krb5,
+ struct crypto_shash *shash,
+ const struct krb5_buffer *metadata,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t sg_len,
+ size_t data_offset, size_t data_len);
+int crypto_krb5_verify_mic(const struct krb5_enctype *krb5,
+ struct crypto_shash *shash,
+ const struct krb5_buffer *metadata,
+ struct scatterlist *sg, unsigned int nr_sg,
+ size_t *_offset, size_t *_len);
+
+/*
+ * krb5_kdf.c
+ */
+int crypto_krb5_calc_PRFplus(const struct krb5_enctype *krb5,
+ const struct krb5_buffer *K,
+ unsigned int L,
+ const struct krb5_buffer *S,
+ struct krb5_buffer *result,
+ gfp_t gfp);
+
+#endif /* _CRYPTO_KRB5_H */
diff --git a/include/crypto/md5.h b/include/crypto/md5.h
new file mode 100644
index 000000000..c47aedfe6
--- /dev/null
+++ b/include/crypto/md5.h
@@ -0,0 +1,210 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_MD5_H
+#define _CRYPTO_MD5_H
+
+#include <crypto/hash.h>
+#include <linux/types.h>
+
+#define MD5_DIGEST_SIZE 16
+#define MD5_HMAC_BLOCK_SIZE 64
+#define MD5_BLOCK_SIZE 64
+#define MD5_BLOCK_WORDS 16
+#define MD5_HASH_WORDS 4
+#define MD5_STATE_SIZE 24
+
+#define MD5_H0 0x67452301UL
+#define MD5_H1 0xefcdab89UL
+#define MD5_H2 0x98badcfeUL
+#define MD5_H3 0x10325476UL
+
+#define CRYPTO_MD5_STATESIZE \
+ CRYPTO_HASH_STATESIZE(MD5_STATE_SIZE, MD5_HMAC_BLOCK_SIZE)
+
+extern const u8 md5_zero_message_hash[MD5_DIGEST_SIZE];
+
+struct md5_state {
+ u32 hash[MD5_HASH_WORDS];
+ u64 byte_count;
+ u32 block[MD5_BLOCK_WORDS];
+};
+
+/* State for the MD5 compression function */
+struct md5_block_state {
+ u32 h[MD5_HASH_WORDS];
+};
+
+/**
+ * struct md5_ctx - Context for hashing a message with MD5
+ * @state: the compression function state
+ * @bytecount: number of bytes processed so far
+ * @buf: partial block buffer; bytecount % MD5_BLOCK_SIZE bytes are valid
+ */
+struct md5_ctx {
+ struct md5_block_state state;
+ u64 bytecount;
+ u8 buf[MD5_BLOCK_SIZE] __aligned(__alignof__(__le64));
+};
+
+/**
+ * md5_init() - Initialize an MD5 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider md5() instead.
+ *
+ * Context: Any context.
+ */
+void md5_init(struct md5_ctx *ctx);
+
+/**
+ * md5_update() - Update an MD5 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void md5_update(struct md5_ctx *ctx, const u8 *data, size_t len);
+
+/**
+ * md5_final() - Finish computing an MD5 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting MD5 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void md5_final(struct md5_ctx *ctx, u8 out[at_least MD5_DIGEST_SIZE]);
+
+/**
+ * md5() - Compute MD5 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting MD5 message digest
+ *
+ * Context: Any context.
+ */
+void md5(const u8 *data, size_t len, u8 out[at_least MD5_DIGEST_SIZE]);
+
+/**
+ * struct hmac_md5_key - Prepared key for HMAC-MD5
+ * @istate: private
+ * @ostate: private
+ */
+struct hmac_md5_key {
+ struct md5_block_state istate;
+ struct md5_block_state ostate;
+};
+
+/**
+ * struct hmac_md5_ctx - Context for computing HMAC-MD5 of a message
+ * @hash_ctx: private
+ * @ostate: private
+ */
+struct hmac_md5_ctx {
+ struct md5_ctx hash_ctx;
+ struct md5_block_state ostate;
+};
+
+/**
+ * hmac_md5_preparekey() - Prepare a key for HMAC-MD5
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-MD5 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_md5_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_md5_preparekey(struct hmac_md5_key *key,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_md5_init() - Initialize an HMAC-MD5 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_md5() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_md5_init(struct hmac_md5_ctx *ctx, const struct hmac_md5_key *key);
+
+/**
+ * hmac_md5_init_usingrawkey() - Initialize an HMAC-MD5 context for a new
+ * message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-MD5 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_md5_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_md5_init_usingrawkey(struct hmac_md5_ctx *ctx,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_md5_update() - Update an HMAC-MD5 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_md5_update(struct hmac_md5_ctx *ctx,
+ const u8 *data, size_t data_len)
+{
+ md5_update(&ctx->hash_ctx, data, data_len);
+}
+
+/**
+ * hmac_md5_final() - Finish computing an HMAC-MD5 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-MD5 value
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_md5_final(struct hmac_md5_ctx *ctx, u8 out[at_least MD5_DIGEST_SIZE]);
+
+/**
+ * hmac_md5() - Compute HMAC-MD5 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-MD5 value
+ *
+ * If you're using the key only once, consider using hmac_md5_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_md5(const struct hmac_md5_key *key,
+ const u8 *data, size_t data_len,
+ u8 out[at_least MD5_DIGEST_SIZE]);
+
+/**
+ * hmac_md5_usingrawkey() - Compute HMAC-MD5 in one shot, using a raw key
+ * @raw_key: the raw HMAC-MD5 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-MD5 value
+ *
+ * If you're using the key multiple times, prefer to use hmac_md5_preparekey()
+ * followed by multiple calls to hmac_md5() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_md5_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+ const u8 *data, size_t data_len,
+ u8 out[at_least MD5_DIGEST_SIZE]);
+
+#endif /* _CRYPTO_MD5_H */
diff --git a/include/crypto/mldsa.h b/include/crypto/mldsa.h
new file mode 100644
index 000000000..3ef267678
--- /dev/null
+++ b/include/crypto/mldsa.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Support for verifying ML-DSA signatures
+ *
+ * Copyright 2025 Google LLC
+ */
+#ifndef _CRYPTO_MLDSA_H
+#define _CRYPTO_MLDSA_H
+
+#include <linux/types.h>
+
+/* Identifier for an ML-DSA parameter set */
+enum mldsa_alg {
+ MLDSA44, /* ML-DSA-44 */
+ MLDSA65, /* ML-DSA-65 */
+ MLDSA87, /* ML-DSA-87 */
+};
+
+/* Lengths of ML-DSA public keys and signatures in bytes */
+#define MLDSA44_PUBLIC_KEY_SIZE 1312
+#define MLDSA65_PUBLIC_KEY_SIZE 1952
+#define MLDSA87_PUBLIC_KEY_SIZE 2592
+#define MLDSA44_SIGNATURE_SIZE 2420
+#define MLDSA65_SIGNATURE_SIZE 3309
+#define MLDSA87_SIGNATURE_SIZE 4627
+
+/**
+ * mldsa_verify() - Verify an ML-DSA signature
+ * @alg: The ML-DSA parameter set to use
+ * @sig: The signature
+ * @sig_len: Length of the signature in bytes. Should match the
+ * MLDSA*_SIGNATURE_SIZE constant associated with @alg,
+ * otherwise -EBADMSG will be returned.
+ * @msg: The message
+ * @msg_len: Length of the message in bytes
+ * @pk: The public key
+ * @pk_len: Length of the public key in bytes. Should match the
+ * MLDSA*_PUBLIC_KEY_SIZE constant associated with @alg,
+ * otherwise -EBADMSG will be returned.
+ *
+ * This verifies a signature using pure ML-DSA with the specified parameter set.
+ * The context string is assumed to be empty. This corresponds to FIPS 204
+ * Algorithm 3 "ML-DSA.Verify" with the ctx parameter set to the empty string
+ * and the lengths of the signature and key given explicitly by the caller.
+ *
+ * Context: Might sleep
+ *
+ * Return:
+ * * 0 if the signature is valid
+ * * -EBADMSG if the signature and/or public key is malformed
+ * * -EKEYREJECTED if the signature is invalid but otherwise well-formed
+ * * -ENOMEM if out of memory so the validity of the signature is unknown
+ */
+int mldsa_verify(enum mldsa_alg alg, const u8 *sig, size_t sig_len,
+ const u8 *msg, size_t msg_len, const u8 *pk, size_t pk_len);
+
+#if IS_ENABLED(CONFIG_CRYPTO_LIB_MLDSA_KUNIT_TEST)
+/* Internal function, exposed only for unit testing */
+s32 mldsa_use_hint(u8 h, s32 r, s32 gamma2);
+#endif
+
+#endif /* _CRYPTO_MLDSA_H */
diff --git a/include/crypto/nh.h b/include/crypto/nh.h
new file mode 100644
index 000000000..465e85bf2
--- /dev/null
+++ b/include/crypto/nh.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NH hash function for Adiantum
+ */
+
+#ifndef _CRYPTO_NH_H
+#define _CRYPTO_NH_H
+
+#include <linux/types.h>
+
+/* NH parameterization: */
+
+/* Endianness: little */
+/* Word size: 32 bits (works well on NEON, SSE2, AVX2) */
+
+/* Stride: 2 words (optimal on ARM32 NEON; works okay on other CPUs too) */
+#define NH_PAIR_STRIDE 2
+#define NH_MESSAGE_UNIT (NH_PAIR_STRIDE * 2 * sizeof(u32))
+
+/* Num passes (Toeplitz iteration count): 4, to give ε = 2^{-128} */
+#define NH_NUM_PASSES 4
+#define NH_HASH_BYTES (NH_NUM_PASSES * sizeof(u64))
+
+/* Max message size: 1024 bytes (32x compression factor) */
+#define NH_NUM_STRIDES 64
+#define NH_MESSAGE_WORDS (NH_PAIR_STRIDE * 2 * NH_NUM_STRIDES)
+#define NH_MESSAGE_BYTES (NH_MESSAGE_WORDS * sizeof(u32))
+#define NH_KEY_WORDS (NH_MESSAGE_WORDS + \
+ NH_PAIR_STRIDE * 2 * (NH_NUM_PASSES - 1))
+#define NH_KEY_BYTES (NH_KEY_WORDS * sizeof(u32))
+
+/**
+ * nh() - NH hash function for Adiantum
+ * @key: The key. @message_len + 48 bytes of it are used. This is NH_KEY_BYTES
+ * if @message_len has its maximum length of NH_MESSAGE_BYTES.
+ * @message: The message
+ * @message_len: The message length in bytes. Must be a multiple of 16
+ * (NH_MESSAGE_UNIT) and at most 1024 (NH_MESSAGE_BYTES).
+ * @hash: (output) The resulting hash value
+ *
+ * Note: the pseudocode for NH in the Adiantum paper iterates over 1024-byte
+ * segments of the message, computes a 32-byte hash for each, and returns all
+ * the hashes concatenated together. In contrast, this function just hashes one
+ * segment and returns one hash. It's the caller's responsibility to call this
+ * function for each 1024-byte segment and collect all the hashes.
+ *
+ * Context: Any context.
+ */
+void nh(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES]);
+
+#endif /* _CRYPTO_NH_H */
diff --git a/include/crypto/null.h b/include/crypto/null.h
new file mode 100644
index 000000000..1c66abf9d
--- /dev/null
+++ b/include/crypto/null.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Values for NULL algorithms */
+
+#ifndef _CRYPTO_NULL_H
+#define _CRYPTO_NULL_H
+
+#define NULL_KEY_SIZE 0
+#define NULL_BLOCK_SIZE 1
+#define NULL_DIGEST_SIZE 0
+#define NULL_IV_SIZE 0
+
+#endif
diff --git a/include/crypto/padlock.h b/include/crypto/padlock.h
new file mode 100644
index 000000000..6de70e88f
--- /dev/null
+++ b/include/crypto/padlock.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for VIA PadLock
+ *
+ * Copyright (c) 2004 Michal Ludvig <michal@logix.cz>
+ */
+
+#ifndef _CRYPTO_PADLOCK_H
+#define _CRYPTO_PADLOCK_H
+
+#define PADLOCK_ALIGNMENT 16
+
+#define PFX KBUILD_MODNAME ": "
+
+#define PADLOCK_CRA_PRIORITY 300
+#define PADLOCK_COMPOSITE_PRIORITY 400
+
+#ifdef CONFIG_64BIT
+#define STACK_ALIGN 16
+#else
+#define STACK_ALIGN 4
+#endif
+
+#endif /* _CRYPTO_PADLOCK_H */
diff --git a/include/crypto/pcrypt.h b/include/crypto/pcrypt.h
new file mode 100644
index 000000000..234d7cf3c
--- /dev/null
+++ b/include/crypto/pcrypt.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * pcrypt - Parallel crypto engine.
+ *
+ * Copyright (C) 2009 secunet Security Networks AG
+ * Copyright (C) 2009 Steffen Klassert <steffen.klassert@secunet.com>
+ */
+
+#ifndef _CRYPTO_PCRYPT_H
+#define _CRYPTO_PCRYPT_H
+
+#include <linux/container_of.h>
+#include <linux/crypto.h>
+#include <linux/padata.h>
+
+struct pcrypt_request {
+ struct padata_priv padata;
+ void *data;
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+static inline void *pcrypt_request_ctx(struct pcrypt_request *req)
+{
+ return req->__ctx;
+}
+
+static inline
+struct padata_priv *pcrypt_request_padata(struct pcrypt_request *req)
+{
+ return &req->padata;
+}
+
+static inline
+struct pcrypt_request *pcrypt_padata_request(struct padata_priv *padata)
+{
+ return container_of(padata, struct pcrypt_request, padata);
+}
+
+#endif
diff --git a/include/crypto/pkcs7.h b/include/crypto/pkcs7.h
new file mode 100644
index 000000000..38ec7f5f9
--- /dev/null
+++ b/include/crypto/pkcs7.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* PKCS#7 crypto data parser
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _CRYPTO_PKCS7_H
+#define _CRYPTO_PKCS7_H
+
+#include <linux/verification.h>
+#include <linux/hash_info.h>
+#include <crypto/public_key.h>
+
+struct key;
+struct pkcs7_message;
+
+/*
+ * pkcs7_parser.c
+ */
+extern struct pkcs7_message *pkcs7_parse_message(const void *data,
+ size_t datalen);
+extern void pkcs7_free_message(struct pkcs7_message *pkcs7);
+
+extern int pkcs7_get_content_data(const struct pkcs7_message *pkcs7,
+ const void **_data, size_t *_datalen,
+ size_t *_headerlen);
+
+/*
+ * pkcs7_trust.c
+ */
+extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7,
+ struct key *trust_keyring);
+
+/*
+ * pkcs7_verify.c
+ */
+extern int pkcs7_verify(struct pkcs7_message *pkcs7,
+ enum key_being_used_for usage);
+
+extern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
+ const void *data, size_t datalen);
+
+extern int pkcs7_get_digest(struct pkcs7_message *pkcs7, const u8 **buf,
+ u32 *len, enum hash_algo *hash_algo);
+
+#endif /* _CRYPTO_PKCS7_H */
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
new file mode 100644
index 000000000..190beb427
--- /dev/null
+++ b/include/crypto/poly1305.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for the Poly1305 algorithm
+ */
+
+#ifndef _CRYPTO_POLY1305_H
+#define _CRYPTO_POLY1305_H
+
+#include <linux/types.h>
+
+#define POLY1305_BLOCK_SIZE 16
+#define POLY1305_KEY_SIZE 32
+#define POLY1305_DIGEST_SIZE 16
+
+/* The poly1305_key and poly1305_state types are mostly opaque and
+ * implementation-defined. Limbs might be in base 2^64 or base 2^26, or
+ * different yet. The union type provided keeps these 64-bit aligned for the
+ * case in which this is implemented using 64x64 multiplies.
+ */
+
+struct poly1305_key {
+ union {
+ u32 r[5];
+ u64 r64[3];
+ };
+};
+
+struct poly1305_core_key {
+ struct poly1305_key key;
+ struct poly1305_key precomputed_s;
+};
+
+struct poly1305_state {
+ union {
+ u32 h[5];
+ u64 h64[3];
+ };
+};
+
+/* Combined state for block function. */
+struct poly1305_block_state {
+ /* accumulator */
+ struct poly1305_state h;
+ /* key */
+ union {
+ struct poly1305_key opaque_r[CONFIG_CRYPTO_LIB_POLY1305_RSIZE];
+ struct poly1305_core_key core_r;
+ };
+};
+
+struct poly1305_desc_ctx {
+ /* partial buffer */
+ u8 buf[POLY1305_BLOCK_SIZE];
+ /* bytes used in partial buffer */
+ unsigned int buflen;
+ /* finalize key */
+ u32 s[4];
+ struct poly1305_block_state state;
+};
+
+void poly1305_init(struct poly1305_desc_ctx *desc,
+ const u8 key[at_least POLY1305_KEY_SIZE]);
+void poly1305_update(struct poly1305_desc_ctx *desc,
+ const u8 *src, unsigned int nbytes);
+void poly1305_final(struct poly1305_desc_ctx *desc, u8 *digest);
+
+#endif
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
new file mode 100644
index 000000000..4c5199b20
--- /dev/null
+++ b/include/crypto/public_key.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Asymmetric public-key algorithm definitions
+ *
+ * See Documentation/crypto/asymmetric-keys.rst
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#ifndef _LINUX_PUBLIC_KEY_H
+#define _LINUX_PUBLIC_KEY_H
+
+#include <linux/errno.h>
+#include <linux/keyctl.h>
+#include <linux/oid_registry.h>
+
+/*
+ * Cryptographic data for the public-key subtype of the asymmetric key type.
+ *
+ * Note that this may include private part of the key as well as the public
+ * part.
+ */
+struct public_key {
+ void *key;
+ u32 keylen;
+ enum OID algo;
+ void *params;
+ u32 paramlen;
+ bool key_is_private;
+ const char *id_type;
+ const char *pkey_algo;
+ unsigned long key_eflags; /* key extension flags */
+#define KEY_EFLAG_CA 0 /* set if the CA basic constraints is set */
+#define KEY_EFLAG_DIGITALSIG 1 /* set if the digitalSignature usage is set */
+#define KEY_EFLAG_KEYCERTSIGN 2 /* set if the keyCertSign usage is set */
+};
+
+extern void public_key_free(struct public_key *key);
+
+/*
+ * Public key cryptography signature data
+ */
+struct public_key_signature {
+ struct asymmetric_key_id *auth_ids[3];
+ u8 *s; /* Signature */
+ u8 *m; /* Message data to pass to verifier */
+ u32 s_size; /* Number of bytes in signature */
+ u32 m_size; /* Number of bytes in ->m */
+ bool m_free; /* T if ->m needs freeing */
+ bool algo_takes_data; /* T if public key algo operates on data, not a hash */
+ const char *pkey_algo;
+ const char *hash_algo;
+ const char *encoding;
+};
+
+extern void public_key_signature_free(struct public_key_signature *sig);
+
+extern struct asymmetric_key_subtype public_key_subtype;
+
+struct key;
+struct key_type;
+union key_payload;
+
+extern int restrict_link_by_signature(struct key *dest_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trust_keyring);
+
+extern int restrict_link_by_key_or_keyring(struct key *dest_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trusted);
+
+extern int restrict_link_by_key_or_keyring_chain(struct key *trust_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trusted);
+
+#if IS_REACHABLE(CONFIG_ASYMMETRIC_KEY_TYPE)
+extern int restrict_link_by_ca(struct key *dest_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trust_keyring);
+int restrict_link_by_digsig(struct key *dest_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trust_keyring);
+#else
+static inline int restrict_link_by_ca(struct key *dest_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trust_keyring)
+{
+ return 0;
+}
+
+static inline int restrict_link_by_digsig(struct key *dest_keyring,
+ const struct key_type *type,
+ const union key_payload *payload,
+ struct key *trust_keyring)
+{
+ return 0;
+}
+#endif
+
+extern int query_asymmetric_key(const struct kernel_pkey_params *,
+ struct kernel_pkey_query *);
+
+extern int verify_signature(const struct key *,
+ const struct public_key_signature *);
+
+#if IS_REACHABLE(CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE)
+int public_key_verify_signature(const struct public_key *pkey,
+ const struct public_key_signature *sig);
+#else
+static inline
+int public_key_verify_signature(const struct public_key *pkey,
+ const struct public_key_signature *sig)
+{
+ return -EINVAL;
+}
+#endif
+
+#endif /* _LINUX_PUBLIC_KEY_H */
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
new file mode 100644
index 000000000..07f494b2c
--- /dev/null
+++ b/include/crypto/rng.h
@@ -0,0 +1,219 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * RNG: Random Number Generator algorithms under the crypto API
+ *
+ * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
+ * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_RNG_H
+#define _CRYPTO_RNG_H
+
+#include <linux/atomic.h>
+#include <linux/container_of.h>
+#include <linux/crypto.h>
+#include <linux/fips.h>
+#include <linux/random.h>
+
+struct crypto_rng;
+
+/**
+ * struct rng_alg - random number generator definition
+ *
+ * @generate: The function defined by this variable obtains a
+ * random number. The random number generator transform
+ * must generate the random number out of the context
+ * provided with this call, plus any additional data
+ * if provided to the call.
+ * @seed: Seed or reseed the random number generator. With the
+ * invocation of this function call, the random number
+ * generator shall become ready for generation. If the
+ * random number generator requires a seed for setting
+ * up a new state, the seed must be provided by the
+ * consumer while invoking this function. The required
+ * size of the seed is defined with @seedsize .
+ * @set_ent: Set entropy that would otherwise be obtained from
+ * entropy source. Internal use only.
+ * @seedsize: The seed size required for a random number generator
+ * initialization defined with this variable. Some
+ * random number generators does not require a seed
+ * as the seeding is implemented internally without
+ * the need of support by the consumer. In this case,
+ * the seed size is set to zero.
+ * @base: Common crypto API algorithm data structure.
+ */
+struct rng_alg {
+ int (*generate)(struct crypto_rng *tfm,
+ const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int dlen);
+ int (*seed)(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
+ void (*set_ent)(struct crypto_rng *tfm, const u8 *data,
+ unsigned int len);
+
+ unsigned int seedsize;
+
+ struct crypto_alg base;
+};
+
+struct crypto_rng {
+ struct crypto_tfm base;
+};
+
+int __crypto_stdrng_get_bytes(void *buf, unsigned int len);
+
+/**
+ * crypto_stdrng_get_bytes() - get cryptographically secure random bytes
+ * @buf: output buffer holding the random numbers
+ * @len: length of the output buffer
+ *
+ * This function fills the caller-allocated buffer with random numbers using the
+ * normal Linux RNG if fips_enabled=0, or the highest-priority "stdrng"
+ * algorithm in the crypto_rng subsystem if fips_enabled=1.
+ *
+ * Context: May sleep
+ * Return: 0 function was successful; < 0 if an error occurred
+ */
+static inline int crypto_stdrng_get_bytes(void *buf, unsigned int len)
+{
+ might_sleep();
+ if (fips_enabled)
+ return __crypto_stdrng_get_bytes(buf, len);
+ return get_random_bytes_wait(buf, len);
+}
+
+/**
+ * DOC: Random number generator API
+ *
+ * The random number generator API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_RNG (listed as type "rng" in /proc/crypto)
+ */
+
+/**
+ * crypto_alloc_rng() -- allocate RNG handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * message digest cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a random number generator. The returned struct
+ * crypto_rng is the cipher handle that is required for any subsequent
+ * API invocation for that random number generator.
+ *
+ * For all random number generators, this call creates a new private copy of
+ * the random number generator that does not share a state with other
+ * instances. The only exception is the "krng" random number generator which
+ * is a kernel crypto API use case for the get_random_bytes() function of the
+ * /dev/random driver.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_rng_tfm(struct crypto_rng *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct rng_alg *__crypto_rng_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct rng_alg, base);
+}
+
+/**
+ * crypto_rng_alg() - obtain 'struct rng_alg' pointer from RNG handle
+ * @tfm: RNG handle
+ *
+ * Return: Pointer to 'struct rng_alg', derived from @tfm RNG handle
+ */
+static inline struct rng_alg *crypto_rng_alg(struct crypto_rng *tfm)
+{
+ return __crypto_rng_alg(crypto_rng_tfm(tfm)->__crt_alg);
+}
+
+/**
+ * crypto_free_rng() - zeroize and free RNG handle
+ * @tfm: cipher handle to be freed
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_rng(struct crypto_rng *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_rng_tfm(tfm));
+}
+
+/**
+ * crypto_rng_generate() - get random number
+ * @tfm: cipher handle
+ * @src: Input buffer holding additional data, may be NULL
+ * @slen: Length of additional data
+ * @dst: output buffer holding the random numbers
+ * @dlen: length of the output buffer
+ *
+ * This function fills the caller-allocated buffer with random
+ * numbers using the random number generator referenced by the
+ * cipher handle.
+ *
+ * Return: 0 function was successful; < 0 if an error occurred
+ */
+static inline int crypto_rng_generate(struct crypto_rng *tfm,
+ const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int dlen)
+{
+ return crypto_rng_alg(tfm)->generate(tfm, src, slen, dst, dlen);
+}
+
+/**
+ * crypto_rng_get_bytes() - get random number
+ * @tfm: cipher handle
+ * @rdata: output buffer holding the random numbers
+ * @dlen: length of the output buffer
+ *
+ * This function fills the caller-allocated buffer with random numbers using the
+ * random number generator referenced by the cipher handle.
+ *
+ * Return: 0 function was successful; < 0 if an error occurred
+ */
+static inline int crypto_rng_get_bytes(struct crypto_rng *tfm,
+ u8 *rdata, unsigned int dlen)
+{
+ return crypto_rng_generate(tfm, NULL, 0, rdata, dlen);
+}
+
+/**
+ * crypto_rng_reset() - re-initialize the RNG
+ * @tfm: cipher handle
+ * @seed: seed input data
+ * @slen: length of the seed input data
+ *
+ * The reset function completely re-initializes the random number generator
+ * referenced by the cipher handle by clearing the current state. The new state
+ * is initialized with the caller provided seed or automatically, depending on
+ * the random number generator type. (The SP800-90A DRBGs perform an automatic
+ * seeding.) The seed is provided as a parameter to this function call. The
+ * provided seed should have the length of the seed size defined for the random
+ * number generator as defined by crypto_rng_seedsize.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed,
+ unsigned int slen);
+
+/**
+ * crypto_rng_seedsize() - obtain seed size of RNG
+ * @tfm: cipher handle
+ *
+ * The function returns the seed size for the random number generator
+ * referenced by the cipher handle. This value may be zero if the random
+ * number generator does not implement or require a reseeding. For example,
+ * the SP800-90A DRBGs implement an automated reseeding after reaching a
+ * pre-defined threshold.
+ *
+ * Return: seed size for the random number generator
+ */
+static inline int crypto_rng_seedsize(struct crypto_rng *tfm)
+{
+ return crypto_rng_alg(tfm)->seedsize;
+}
+
+#endif
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
new file mode 100644
index 000000000..624fab589
--- /dev/null
+++ b/include/crypto/scatterwalk.h
@@ -0,0 +1,256 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cryptographic scatter and gather helpers.
+ *
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ * Copyright (c) 2002 Adam J. Richter <adam@yggdrasil.com>
+ * Copyright (c) 2004 Jean-Luc Cooke <jlcooke@certainkey.com>
+ * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_SCATTERWALK_H
+#define _CRYPTO_SCATTERWALK_H
+
+#include <crypto/algapi.h>
+
+#include <linux/highmem.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+
+static inline void scatterwalk_crypto_chain(struct scatterlist *head,
+ struct scatterlist *sg, int num)
+{
+ if (sg)
+ sg_chain(head, num, sg);
+ else
+ sg_mark_end(head);
+}
+
+static inline void scatterwalk_start(struct scatter_walk *walk,
+ struct scatterlist *sg)
+{
+ walk->sg = sg;
+ walk->offset = sg->offset;
+}
+
+/*
+ * This is equivalent to scatterwalk_start(walk, sg) followed by
+ * scatterwalk_skip(walk, pos).
+ */
+static inline void scatterwalk_start_at_pos(struct scatter_walk *walk,
+ struct scatterlist *sg,
+ unsigned int pos)
+{
+ while (pos > sg->length) {
+ pos -= sg->length;
+ sg = sg_next(sg);
+ }
+ walk->sg = sg;
+ walk->offset = sg->offset + pos;
+}
+
+static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,
+ unsigned int nbytes)
+{
+ unsigned int len_this_sg;
+ unsigned int limit;
+
+ if (walk->offset >= walk->sg->offset + walk->sg->length)
+ scatterwalk_start(walk, sg_next(walk->sg));
+ len_this_sg = walk->sg->offset + walk->sg->length - walk->offset;
+
+ /*
+ * HIGHMEM case: the page may have to be mapped into memory. To avoid
+ * the complexity of having to map multiple pages at once per sg entry,
+ * clamp the returned length to not cross a page boundary.
+ *
+ * !HIGHMEM case: no mapping is needed; all pages of the sg entry are
+ * already mapped contiguously in the kernel's direct map. For improved
+ * performance, allow the walker to return data segments that cross a
+ * page boundary. Do still cap the length to PAGE_SIZE, since some
+ * users rely on that to avoid disabling preemption for too long when
+ * using SIMD. It's also needed for when skcipher_walk uses a bounce
+ * page due to the data not being aligned to the algorithm's alignmask.
+ */
+ if (IS_ENABLED(CONFIG_HIGHMEM))
+ limit = PAGE_SIZE - offset_in_page(walk->offset);
+ else
+ limit = PAGE_SIZE;
+
+ return min3(nbytes, len_this_sg, limit);
+}
+
+/*
+ * Create a scatterlist that represents the remaining data in a walk. Uses
+ * chaining to reference the original scatterlist, so this uses at most two
+ * entries in @sg_out regardless of the number of entries in the original list.
+ * Assumes that sg_init_table() was already done.
+ */
+static inline void scatterwalk_get_sglist(struct scatter_walk *walk,
+ struct scatterlist sg_out[2])
+{
+ if (walk->offset >= walk->sg->offset + walk->sg->length)
+ scatterwalk_start(walk, sg_next(walk->sg));
+ sg_set_page(sg_out, sg_page(walk->sg),
+ walk->sg->offset + walk->sg->length - walk->offset,
+ walk->offset);
+ scatterwalk_crypto_chain(sg_out, sg_next(walk->sg), 2);
+}
+
+static inline void scatterwalk_map(struct scatter_walk *walk)
+{
+ struct page *base_page = sg_page(walk->sg);
+ unsigned int offset = walk->offset;
+ void *addr;
+
+ if (IS_ENABLED(CONFIG_HIGHMEM)) {
+ struct page *page;
+
+ page = base_page + (offset >> PAGE_SHIFT);
+ offset = offset_in_page(offset);
+ addr = kmap_local_page(page) + offset;
+ } else {
+ /*
+ * When !HIGHMEM we allow the walker to return segments that
+ * span a page boundary; see scatterwalk_clamp(). To make it
+ * clear that in this case we're working in the linear buffer of
+ * the whole sg entry in the kernel's direct map rather than
+ * within the mapped buffer of a single page, compute the
+ * address as an offset from the page_address() of the first
+ * page of the sg entry. Either way the result is the address
+ * in the direct map, but this makes it clearer what is really
+ * going on.
+ */
+ addr = page_address(base_page) + offset;
+ }
+
+ walk->__addr = addr;
+}
+
+/**
+ * scatterwalk_next() - Get the next data buffer in a scatterlist walk
+ * @walk: the scatter_walk
+ * @total: the total number of bytes remaining, > 0
+ *
+ * A virtual address for the next segment of data from the scatterlist will
+ * be placed into @walk->addr. The caller must call scatterwalk_done_src()
+ * or scatterwalk_done_dst() when it is done using this virtual address.
+ *
+ * Returns: the next number of bytes available, <= @total
+ */
+static inline unsigned int scatterwalk_next(struct scatter_walk *walk,
+ unsigned int total)
+{
+ unsigned int nbytes = scatterwalk_clamp(walk, total);
+
+ scatterwalk_map(walk);
+ return nbytes;
+}
+
+static inline void scatterwalk_unmap(struct scatter_walk *walk)
+{
+ if (IS_ENABLED(CONFIG_HIGHMEM))
+ kunmap_local(walk->__addr);
+}
+
+static inline void scatterwalk_advance(struct scatter_walk *walk,
+ unsigned int nbytes)
+{
+ walk->offset += nbytes;
+}
+
+/**
+ * scatterwalk_done_src() - Finish one step of a walk of source scatterlist
+ * @walk: the scatter_walk
+ * @nbytes: the number of bytes processed this step, less than or equal to the
+ * number of bytes that scatterwalk_next() returned.
+ *
+ * Use this if the mapped address was not written to, i.e. it is source data.
+ */
+static inline void scatterwalk_done_src(struct scatter_walk *walk,
+ unsigned int nbytes)
+{
+ scatterwalk_unmap(walk);
+ scatterwalk_advance(walk, nbytes);
+}
+
+/*
+ * Flush the dcache of any pages that overlap the region
+ * [offset, offset + nbytes) relative to base_page.
+ *
+ * This should be called only when ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE, to ensure
+ * that all relevant code (including the call to sg_page() in the caller, if
+ * applicable) gets fully optimized out when !ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE.
+ */
+static inline void __scatterwalk_flush_dcache_pages(struct page *base_page,
+ unsigned int offset,
+ unsigned int nbytes)
+{
+ unsigned int num_pages;
+
+ base_page += offset / PAGE_SIZE;
+ offset %= PAGE_SIZE;
+
+ /*
+ * This is an overflow-safe version of
+ * num_pages = DIV_ROUND_UP(offset + nbytes, PAGE_SIZE).
+ */
+ num_pages = nbytes / PAGE_SIZE;
+ num_pages += DIV_ROUND_UP(offset + (nbytes % PAGE_SIZE), PAGE_SIZE);
+
+ for (unsigned int i = 0; i < num_pages; i++)
+ flush_dcache_page(base_page + i);
+}
+
+/**
+ * scatterwalk_done_dst() - Finish one step of a walk of destination scatterlist
+ * @walk: the scatter_walk
+ * @nbytes: the number of bytes processed this step, less than or equal to the
+ * number of bytes that scatterwalk_next() returned.
+ *
+ * Use this if the mapped address may have been written to, i.e. it is
+ * destination data.
+ */
+static inline void scatterwalk_done_dst(struct scatter_walk *walk,
+ unsigned int nbytes)
+{
+ scatterwalk_unmap(walk);
+ if (ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE)
+ __scatterwalk_flush_dcache_pages(sg_page(walk->sg),
+ walk->offset, nbytes);
+ scatterwalk_advance(walk, nbytes);
+}
+
+void scatterwalk_skip(struct scatter_walk *walk, unsigned int nbytes);
+
+void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk,
+ unsigned int nbytes);
+
+void memcpy_to_scatterwalk(struct scatter_walk *walk, const void *buf,
+ unsigned int nbytes);
+
+void memcpy_from_sglist(void *buf, struct scatterlist *sg,
+ unsigned int start, unsigned int nbytes);
+
+void memcpy_to_sglist(struct scatterlist *sg, unsigned int start,
+ const void *buf, unsigned int nbytes);
+
+void memcpy_sglist(struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes);
+
+/* In new code, please use memcpy_{from,to}_sglist() directly instead. */
+static inline void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,
+ unsigned int start,
+ unsigned int nbytes, int out)
+{
+ if (out)
+ memcpy_to_sglist(sg, start, buf, nbytes);
+ else
+ memcpy_from_sglist(buf, sg, start, nbytes);
+}
+
+struct scatterlist *scatterwalk_ffwd(struct scatterlist dst[2],
+ struct scatterlist *src,
+ unsigned int len);
+
+#endif /* _CRYPTO_SCATTERWALK_H */
diff --git a/include/crypto/serpent.h b/include/crypto/serpent.h
new file mode 100644
index 000000000..75c7eaa20
--- /dev/null
+++ b/include/crypto/serpent.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for serpent algorithms
+ */
+
+#ifndef _CRYPTO_SERPENT_H
+#define _CRYPTO_SERPENT_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define SERPENT_MIN_KEY_SIZE 0
+#define SERPENT_MAX_KEY_SIZE 32
+#define SERPENT_EXPKEY_WORDS 132
+#define SERPENT_BLOCK_SIZE 16
+
+struct serpent_ctx {
+ u32 expkey[SERPENT_EXPKEY_WORDS];
+};
+
+int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key,
+ unsigned int keylen);
+int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
+
+void __serpent_encrypt(const void *ctx, u8 *dst, const u8 *src);
+void __serpent_decrypt(const void *ctx, u8 *dst, const u8 *src);
+
+#endif
diff --git a/include/crypto/sha1.h b/include/crypto/sha1.h
new file mode 100644
index 000000000..4d973e016
--- /dev/null
+++ b/include/crypto/sha1.h
@@ -0,0 +1,209 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for SHA-1 algorithms
+ */
+
+#ifndef _CRYPTO_SHA1_H
+#define _CRYPTO_SHA1_H
+
+#include <linux/types.h>
+
+#define SHA1_DIGEST_SIZE 20
+#define SHA1_BLOCK_SIZE 64
+#define SHA1_STATE_SIZE offsetof(struct sha1_state, buffer)
+
+#define SHA1_H0 0x67452301UL
+#define SHA1_H1 0xefcdab89UL
+#define SHA1_H2 0x98badcfeUL
+#define SHA1_H3 0x10325476UL
+#define SHA1_H4 0xc3d2e1f0UL
+
+extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE];
+
+struct sha1_state {
+ u32 state[SHA1_DIGEST_SIZE / 4];
+ u64 count;
+ u8 buffer[SHA1_BLOCK_SIZE];
+};
+
+/* State for the SHA-1 compression function */
+struct sha1_block_state {
+ u32 h[SHA1_DIGEST_SIZE / 4];
+};
+
+/**
+ * struct sha1_ctx - Context for hashing a message with SHA-1
+ * @state: the compression function state
+ * @bytecount: number of bytes processed so far
+ * @buf: partial block buffer; bytecount % SHA1_BLOCK_SIZE bytes are valid
+ */
+struct sha1_ctx {
+ struct sha1_block_state state;
+ u64 bytecount;
+ u8 buf[SHA1_BLOCK_SIZE];
+};
+
+/**
+ * sha1_init() - Initialize a SHA-1 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sha1() instead.
+ *
+ * Context: Any context.
+ */
+void sha1_init(struct sha1_ctx *ctx);
+
+/**
+ * sha1_update() - Update a SHA-1 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void sha1_update(struct sha1_ctx *ctx, const u8 *data, size_t len);
+
+/**
+ * sha1_final() - Finish computing a SHA-1 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SHA-1 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha1_final(struct sha1_ctx *ctx, u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * sha1() - Compute SHA-1 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SHA-1 message digest
+ *
+ * Context: Any context.
+ */
+void sha1(const u8 *data, size_t len, u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * struct hmac_sha1_key - Prepared key for HMAC-SHA1
+ * @istate: private
+ * @ostate: private
+ */
+struct hmac_sha1_key {
+ struct sha1_block_state istate;
+ struct sha1_block_state ostate;
+};
+
+/**
+ * struct hmac_sha1_ctx - Context for computing HMAC-SHA1 of a message
+ * @sha_ctx: private
+ * @ostate: private
+ */
+struct hmac_sha1_ctx {
+ struct sha1_ctx sha_ctx;
+ struct sha1_block_state ostate;
+};
+
+/**
+ * hmac_sha1_preparekey() - Prepare a key for HMAC-SHA1
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-SHA1 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_sha1_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_preparekey(struct hmac_sha1_key *key,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha1_init() - Initialize an HMAC-SHA1 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_sha1() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_init(struct hmac_sha1_ctx *ctx, const struct hmac_sha1_key *key);
+
+/**
+ * hmac_sha1_init_usingrawkey() - Initialize an HMAC-SHA1 context for a new
+ * message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-SHA1 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_sha1_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_init_usingrawkey(struct hmac_sha1_ctx *ctx,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha1_update() - Update an HMAC-SHA1 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha1_update(struct hmac_sha1_ctx *ctx,
+ const u8 *data, size_t data_len)
+{
+ sha1_update(&ctx->sha_ctx, data, data_len);
+}
+
+/**
+ * hmac_sha1_final() - Finish computing an HMAC-SHA1 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-SHA1 value
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_final(struct hmac_sha1_ctx *ctx,
+ u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * hmac_sha1() - Compute HMAC-SHA1 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA1 value
+ *
+ * If you're using the key only once, consider using hmac_sha1_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_sha1(const struct hmac_sha1_key *key,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA1_DIGEST_SIZE]);
+
+/**
+ * hmac_sha1_usingrawkey() - Compute HMAC-SHA1 in one shot, using a raw key
+ * @raw_key: the raw HMAC-SHA1 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA1 value
+ *
+ * If you're using the key multiple times, prefer to use hmac_sha1_preparekey()
+ * followed by multiple calls to hmac_sha1() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha1_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA1_DIGEST_SIZE]);
+
+#endif /* _CRYPTO_SHA1_H */
diff --git a/include/crypto/sha2.h b/include/crypto/sha2.h
new file mode 100644
index 000000000..7bb8fe169
--- /dev/null
+++ b/include/crypto/sha2.h
@@ -0,0 +1,913 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for SHA-2 algorithms
+ */
+
+#ifndef _CRYPTO_SHA2_H
+#define _CRYPTO_SHA2_H
+
+#include <linux/types.h>
+
+#define SHA224_DIGEST_SIZE 28
+#define SHA224_BLOCK_SIZE 64
+
+#define SHA256_DIGEST_SIZE 32
+#define SHA256_BLOCK_SIZE 64
+#define SHA256_STATE_WORDS 8
+
+#define SHA384_DIGEST_SIZE 48
+#define SHA384_BLOCK_SIZE 128
+
+#define SHA512_DIGEST_SIZE 64
+#define SHA512_BLOCK_SIZE 128
+#define SHA512_STATE_SIZE 80
+
+#define SHA224_H0 0xc1059ed8UL
+#define SHA224_H1 0x367cd507UL
+#define SHA224_H2 0x3070dd17UL
+#define SHA224_H3 0xf70e5939UL
+#define SHA224_H4 0xffc00b31UL
+#define SHA224_H5 0x68581511UL
+#define SHA224_H6 0x64f98fa7UL
+#define SHA224_H7 0xbefa4fa4UL
+
+#define SHA256_H0 0x6a09e667UL
+#define SHA256_H1 0xbb67ae85UL
+#define SHA256_H2 0x3c6ef372UL
+#define SHA256_H3 0xa54ff53aUL
+#define SHA256_H4 0x510e527fUL
+#define SHA256_H5 0x9b05688cUL
+#define SHA256_H6 0x1f83d9abUL
+#define SHA256_H7 0x5be0cd19UL
+
+#define SHA384_H0 0xcbbb9d5dc1059ed8ULL
+#define SHA384_H1 0x629a292a367cd507ULL
+#define SHA384_H2 0x9159015a3070dd17ULL
+#define SHA384_H3 0x152fecd8f70e5939ULL
+#define SHA384_H4 0x67332667ffc00b31ULL
+#define SHA384_H5 0x8eb44a8768581511ULL
+#define SHA384_H6 0xdb0c2e0d64f98fa7ULL
+#define SHA384_H7 0x47b5481dbefa4fa4ULL
+
+#define SHA512_H0 0x6a09e667f3bcc908ULL
+#define SHA512_H1 0xbb67ae8584caa73bULL
+#define SHA512_H2 0x3c6ef372fe94f82bULL
+#define SHA512_H3 0xa54ff53a5f1d36f1ULL
+#define SHA512_H4 0x510e527fade682d1ULL
+#define SHA512_H5 0x9b05688c2b3e6c1fULL
+#define SHA512_H6 0x1f83d9abfb41bd6bULL
+#define SHA512_H7 0x5be0cd19137e2179ULL
+
+extern const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE];
+
+extern const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE];
+
+extern const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE];
+
+extern const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE];
+
+struct crypto_sha256_state {
+ u32 state[SHA256_STATE_WORDS];
+ u64 count;
+};
+
+static inline void sha224_block_init(struct crypto_sha256_state *sctx)
+{
+ sctx->state[0] = SHA224_H0;
+ sctx->state[1] = SHA224_H1;
+ sctx->state[2] = SHA224_H2;
+ sctx->state[3] = SHA224_H3;
+ sctx->state[4] = SHA224_H4;
+ sctx->state[5] = SHA224_H5;
+ sctx->state[6] = SHA224_H6;
+ sctx->state[7] = SHA224_H7;
+ sctx->count = 0;
+}
+
+static inline void sha256_block_init(struct crypto_sha256_state *sctx)
+{
+ sctx->state[0] = SHA256_H0;
+ sctx->state[1] = SHA256_H1;
+ sctx->state[2] = SHA256_H2;
+ sctx->state[3] = SHA256_H3;
+ sctx->state[4] = SHA256_H4;
+ sctx->state[5] = SHA256_H5;
+ sctx->state[6] = SHA256_H6;
+ sctx->state[7] = SHA256_H7;
+ sctx->count = 0;
+}
+
+struct sha256_state {
+ union {
+ struct crypto_sha256_state ctx;
+ struct {
+ u32 state[SHA256_STATE_WORDS];
+ u64 count;
+ };
+ };
+ u8 buf[SHA256_BLOCK_SIZE];
+};
+
+struct sha512_state {
+ u64 state[SHA512_DIGEST_SIZE / 8];
+ u64 count[2];
+ u8 buf[SHA512_BLOCK_SIZE];
+};
+
+/* State for the SHA-256 (and SHA-224) compression function */
+struct sha256_block_state {
+ u32 h[SHA256_STATE_WORDS];
+};
+
+/*
+ * Context structure, shared by SHA-224 and SHA-256. The sha224_ctx and
+ * sha256_ctx structs wrap this one so that the API has proper typing and
+ * doesn't allow mixing the SHA-224 and SHA-256 functions arbitrarily.
+ */
+struct __sha256_ctx {
+ struct sha256_block_state state;
+ u64 bytecount;
+ u8 buf[SHA256_BLOCK_SIZE] __aligned(__alignof__(__be64));
+};
+void __sha256_update(struct __sha256_ctx *ctx, const u8 *data, size_t len);
+
+/*
+ * HMAC key and message context structs, shared by HMAC-SHA224 and HMAC-SHA256.
+ * The hmac_sha224_* and hmac_sha256_* structs wrap this one so that the API has
+ * proper typing and doesn't allow mixing the functions arbitrarily.
+ */
+struct __hmac_sha256_key {
+ struct sha256_block_state istate;
+ struct sha256_block_state ostate;
+};
+struct __hmac_sha256_ctx {
+ struct __sha256_ctx sha_ctx;
+ struct sha256_block_state ostate;
+};
+void __hmac_sha256_init(struct __hmac_sha256_ctx *ctx,
+ const struct __hmac_sha256_key *key);
+
+/**
+ * struct sha224_ctx - Context for hashing a message with SHA-224
+ * @ctx: private
+ */
+struct sha224_ctx {
+ struct __sha256_ctx ctx;
+};
+
+/**
+ * sha224_init() - Initialize a SHA-224 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sha224() instead.
+ *
+ * Context: Any context.
+ */
+void sha224_init(struct sha224_ctx *ctx);
+
+/**
+ * sha224_update() - Update a SHA-224 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void sha224_update(struct sha224_ctx *ctx,
+ const u8 *data, size_t len)
+{
+ __sha256_update(&ctx->ctx, data, len);
+}
+
+/**
+ * sha224_final() - Finish computing a SHA-224 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SHA-224 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha224_final(struct sha224_ctx *ctx, u8 out[at_least SHA224_DIGEST_SIZE]);
+
+/**
+ * sha224() - Compute SHA-224 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SHA-224 message digest
+ *
+ * Context: Any context.
+ */
+void sha224(const u8 *data, size_t len, u8 out[at_least SHA224_DIGEST_SIZE]);
+
+/**
+ * struct hmac_sha224_key - Prepared key for HMAC-SHA224
+ * @key: private
+ */
+struct hmac_sha224_key {
+ struct __hmac_sha256_key key;
+};
+
+/**
+ * struct hmac_sha224_ctx - Context for computing HMAC-SHA224 of a message
+ * @ctx: private
+ */
+struct hmac_sha224_ctx {
+ struct __hmac_sha256_ctx ctx;
+};
+
+/**
+ * hmac_sha224_preparekey() - Prepare a key for HMAC-SHA224
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-SHA224 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_sha224_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_sha224_preparekey(struct hmac_sha224_key *key,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha224_init() - Initialize an HMAC-SHA224 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_sha224() instead.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha224_init(struct hmac_sha224_ctx *ctx,
+ const struct hmac_sha224_key *key)
+{
+ __hmac_sha256_init(&ctx->ctx, &key->key);
+}
+
+/**
+ * hmac_sha224_init_usingrawkey() - Initialize an HMAC-SHA224 context for a new
+ * message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-SHA224 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_sha224_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha224_init_usingrawkey(struct hmac_sha224_ctx *ctx,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha224_update() - Update an HMAC-SHA224 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha224_update(struct hmac_sha224_ctx *ctx,
+ const u8 *data, size_t data_len)
+{
+ __sha256_update(&ctx->ctx.sha_ctx, data, data_len);
+}
+
+/**
+ * hmac_sha224_final() - Finish computing an HMAC-SHA224 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-SHA224 value
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_sha224_final(struct hmac_sha224_ctx *ctx,
+ u8 out[at_least SHA224_DIGEST_SIZE]);
+
+/**
+ * hmac_sha224() - Compute HMAC-SHA224 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA224 value
+ *
+ * If you're using the key only once, consider using hmac_sha224_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_sha224(const struct hmac_sha224_key *key,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA224_DIGEST_SIZE]);
+
+/**
+ * hmac_sha224_usingrawkey() - Compute HMAC-SHA224 in one shot, using a raw key
+ * @raw_key: the raw HMAC-SHA224 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA224 value
+ *
+ * If you're using the key multiple times, prefer to use
+ * hmac_sha224_preparekey() followed by multiple calls to hmac_sha224() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha224_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA224_DIGEST_SIZE]);
+
+/**
+ * struct sha256_ctx - Context for hashing a message with SHA-256
+ * @ctx: private
+ */
+struct sha256_ctx {
+ struct __sha256_ctx ctx;
+};
+
+/**
+ * sha256_init() - Initialize a SHA-256 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sha256() instead.
+ *
+ * Context: Any context.
+ */
+void sha256_init(struct sha256_ctx *ctx);
+
+/**
+ * sha256_update() - Update a SHA-256 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void sha256_update(struct sha256_ctx *ctx,
+ const u8 *data, size_t len)
+{
+ __sha256_update(&ctx->ctx, data, len);
+}
+
+/**
+ * sha256_final() - Finish computing a SHA-256 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SHA-256 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha256_final(struct sha256_ctx *ctx, u8 out[at_least SHA256_DIGEST_SIZE]);
+
+/**
+ * sha256() - Compute SHA-256 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SHA-256 message digest
+ *
+ * Context: Any context.
+ */
+void sha256(const u8 *data, size_t len, u8 out[at_least SHA256_DIGEST_SIZE]);
+
+/**
+ * sha256_finup_2x() - Compute two SHA-256 digests from a common initial
+ * context. On some CPUs, this is faster than sequentially
+ * computing each digest.
+ * @ctx: an optional initial context, which may have already processed data. If
+ * NULL, a default initial context is used (equivalent to sha256_init()).
+ * @data1: data for the first message
+ * @data2: data for the second message
+ * @len: the length of each of @data1 and @data2, in bytes
+ * @out1: (output) the first SHA-256 message digest
+ * @out2: (output) the second SHA-256 message digest
+ *
+ * Context: Any context.
+ */
+void sha256_finup_2x(const struct sha256_ctx *ctx, const u8 *data1,
+ const u8 *data2, size_t len,
+ u8 out1[at_least SHA256_DIGEST_SIZE],
+ u8 out2[at_least SHA256_DIGEST_SIZE]);
+
+/**
+ * sha256_finup_2x_is_optimized() - Check if sha256_finup_2x() is using a real
+ * interleaved implementation, as opposed to a
+ * sequential fallback
+ * @return: true if optimized
+ *
+ * Context: Any context.
+ */
+bool sha256_finup_2x_is_optimized(void);
+
+/**
+ * struct hmac_sha256_key - Prepared key for HMAC-SHA256
+ * @key: private
+ */
+struct hmac_sha256_key {
+ struct __hmac_sha256_key key;
+};
+
+/**
+ * struct hmac_sha256_ctx - Context for computing HMAC-SHA256 of a message
+ * @ctx: private
+ */
+struct hmac_sha256_ctx {
+ struct __hmac_sha256_ctx ctx;
+};
+
+/**
+ * hmac_sha256_preparekey() - Prepare a key for HMAC-SHA256
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-SHA256 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_sha256_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_sha256_preparekey(struct hmac_sha256_key *key,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha256_init() - Initialize an HMAC-SHA256 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_sha256() instead.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha256_init(struct hmac_sha256_ctx *ctx,
+ const struct hmac_sha256_key *key)
+{
+ __hmac_sha256_init(&ctx->ctx, &key->key);
+}
+
+/**
+ * hmac_sha256_init_usingrawkey() - Initialize an HMAC-SHA256 context for a new
+ * message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-SHA256 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_sha256_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha256_init_usingrawkey(struct hmac_sha256_ctx *ctx,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha256_update() - Update an HMAC-SHA256 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha256_update(struct hmac_sha256_ctx *ctx,
+ const u8 *data, size_t data_len)
+{
+ __sha256_update(&ctx->ctx.sha_ctx, data, data_len);
+}
+
+/**
+ * hmac_sha256_final() - Finish computing an HMAC-SHA256 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-SHA256 value
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_sha256_final(struct hmac_sha256_ctx *ctx,
+ u8 out[at_least SHA256_DIGEST_SIZE]);
+
+/**
+ * hmac_sha256() - Compute HMAC-SHA256 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA256 value
+ *
+ * If you're using the key only once, consider using hmac_sha256_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_sha256(const struct hmac_sha256_key *key,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA256_DIGEST_SIZE]);
+
+/**
+ * hmac_sha256_usingrawkey() - Compute HMAC-SHA256 in one shot, using a raw key
+ * @raw_key: the raw HMAC-SHA256 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA256 value
+ *
+ * If you're using the key multiple times, prefer to use
+ * hmac_sha256_preparekey() followed by multiple calls to hmac_sha256() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha256_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA256_DIGEST_SIZE]);
+
+/* State for the SHA-512 (and SHA-384) compression function */
+struct sha512_block_state {
+ u64 h[8];
+};
+
+/*
+ * Context structure, shared by SHA-384 and SHA-512. The sha384_ctx and
+ * sha512_ctx structs wrap this one so that the API has proper typing and
+ * doesn't allow mixing the SHA-384 and SHA-512 functions arbitrarily.
+ */
+struct __sha512_ctx {
+ struct sha512_block_state state;
+ u64 bytecount_lo;
+ u64 bytecount_hi;
+ u8 buf[SHA512_BLOCK_SIZE] __aligned(__alignof__(__be64));
+};
+void __sha512_update(struct __sha512_ctx *ctx, const u8 *data, size_t len);
+
+/*
+ * HMAC key and message context structs, shared by HMAC-SHA384 and HMAC-SHA512.
+ * The hmac_sha384_* and hmac_sha512_* structs wrap this one so that the API has
+ * proper typing and doesn't allow mixing the functions arbitrarily.
+ */
+struct __hmac_sha512_key {
+ struct sha512_block_state istate;
+ struct sha512_block_state ostate;
+};
+struct __hmac_sha512_ctx {
+ struct __sha512_ctx sha_ctx;
+ struct sha512_block_state ostate;
+};
+void __hmac_sha512_init(struct __hmac_sha512_ctx *ctx,
+ const struct __hmac_sha512_key *key);
+
+/**
+ * struct sha384_ctx - Context for hashing a message with SHA-384
+ * @ctx: private
+ */
+struct sha384_ctx {
+ struct __sha512_ctx ctx;
+};
+
+/**
+ * sha384_init() - Initialize a SHA-384 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sha384() instead.
+ *
+ * Context: Any context.
+ */
+void sha384_init(struct sha384_ctx *ctx);
+
+/**
+ * sha384_update() - Update a SHA-384 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void sha384_update(struct sha384_ctx *ctx,
+ const u8 *data, size_t len)
+{
+ __sha512_update(&ctx->ctx, data, len);
+}
+
+/**
+ * sha384_final() - Finish computing a SHA-384 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SHA-384 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha384_final(struct sha384_ctx *ctx, u8 out[at_least SHA384_DIGEST_SIZE]);
+
+/**
+ * sha384() - Compute SHA-384 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SHA-384 message digest
+ *
+ * Context: Any context.
+ */
+void sha384(const u8 *data, size_t len, u8 out[at_least SHA384_DIGEST_SIZE]);
+
+/**
+ * struct hmac_sha384_key - Prepared key for HMAC-SHA384
+ * @key: private
+ */
+struct hmac_sha384_key {
+ struct __hmac_sha512_key key;
+};
+
+/**
+ * struct hmac_sha384_ctx - Context for computing HMAC-SHA384 of a message
+ * @ctx: private
+ */
+struct hmac_sha384_ctx {
+ struct __hmac_sha512_ctx ctx;
+};
+
+/**
+ * hmac_sha384_preparekey() - Prepare a key for HMAC-SHA384
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-SHA384 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_sha384_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_sha384_preparekey(struct hmac_sha384_key *key,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha384_init() - Initialize an HMAC-SHA384 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_sha384() instead.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha384_init(struct hmac_sha384_ctx *ctx,
+ const struct hmac_sha384_key *key)
+{
+ __hmac_sha512_init(&ctx->ctx, &key->key);
+}
+
+/**
+ * hmac_sha384_init_usingrawkey() - Initialize an HMAC-SHA384 context for a new
+ * message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-SHA384 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_sha384_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha384_init_usingrawkey(struct hmac_sha384_ctx *ctx,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha384_update() - Update an HMAC-SHA384 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha384_update(struct hmac_sha384_ctx *ctx,
+ const u8 *data, size_t data_len)
+{
+ __sha512_update(&ctx->ctx.sha_ctx, data, data_len);
+}
+
+/**
+ * hmac_sha384_final() - Finish computing an HMAC-SHA384 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-SHA384 value
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_sha384_final(struct hmac_sha384_ctx *ctx,
+ u8 out[at_least SHA384_DIGEST_SIZE]);
+
+/**
+ * hmac_sha384() - Compute HMAC-SHA384 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA384 value
+ *
+ * If you're using the key only once, consider using hmac_sha384_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_sha384(const struct hmac_sha384_key *key,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA384_DIGEST_SIZE]);
+
+/**
+ * hmac_sha384_usingrawkey() - Compute HMAC-SHA384 in one shot, using a raw key
+ * @raw_key: the raw HMAC-SHA384 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA384 value
+ *
+ * If you're using the key multiple times, prefer to use
+ * hmac_sha384_preparekey() followed by multiple calls to hmac_sha384() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha384_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA384_DIGEST_SIZE]);
+
+/**
+ * struct sha512_ctx - Context for hashing a message with SHA-512
+ * @ctx: private
+ */
+struct sha512_ctx {
+ struct __sha512_ctx ctx;
+};
+
+/**
+ * sha512_init() - Initialize a SHA-512 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sha512() instead.
+ *
+ * Context: Any context.
+ */
+void sha512_init(struct sha512_ctx *ctx);
+
+/**
+ * sha512_update() - Update a SHA-512 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void sha512_update(struct sha512_ctx *ctx,
+ const u8 *data, size_t len)
+{
+ __sha512_update(&ctx->ctx, data, len);
+}
+
+/**
+ * sha512_final() - Finish computing a SHA-512 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SHA-512 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha512_final(struct sha512_ctx *ctx, u8 out[at_least SHA512_DIGEST_SIZE]);
+
+/**
+ * sha512() - Compute SHA-512 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SHA-512 message digest
+ *
+ * Context: Any context.
+ */
+void sha512(const u8 *data, size_t len, u8 out[at_least SHA512_DIGEST_SIZE]);
+
+/**
+ * struct hmac_sha512_key - Prepared key for HMAC-SHA512
+ * @key: private
+ */
+struct hmac_sha512_key {
+ struct __hmac_sha512_key key;
+};
+
+/**
+ * struct hmac_sha512_ctx - Context for computing HMAC-SHA512 of a message
+ * @ctx: private
+ */
+struct hmac_sha512_ctx {
+ struct __hmac_sha512_ctx ctx;
+};
+
+/**
+ * hmac_sha512_preparekey() - Prepare a key for HMAC-SHA512
+ * @key: (output) the key structure to initialize
+ * @raw_key: the raw HMAC-SHA512 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * Note: the caller is responsible for zeroizing both the struct hmac_sha512_key
+ * and the raw key once they are no longer needed.
+ *
+ * Context: Any context.
+ */
+void hmac_sha512_preparekey(struct hmac_sha512_key *key,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha512_init() - Initialize an HMAC-SHA512 context for a new message
+ * @ctx: (output) the HMAC context to initialize
+ * @key: the prepared HMAC key
+ *
+ * If you don't need incremental computation, consider hmac_sha512() instead.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha512_init(struct hmac_sha512_ctx *ctx,
+ const struct hmac_sha512_key *key)
+{
+ __hmac_sha512_init(&ctx->ctx, &key->key);
+}
+
+/**
+ * hmac_sha512_init_usingrawkey() - Initialize an HMAC-SHA512 context for a new
+ * message, using a raw key
+ * @ctx: (output) the HMAC context to initialize
+ * @raw_key: the raw HMAC-SHA512 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ *
+ * If you don't need incremental computation, consider hmac_sha512_usingrawkey()
+ * instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha512_init_usingrawkey(struct hmac_sha512_ctx *ctx,
+ const u8 *raw_key, size_t raw_key_len);
+
+/**
+ * hmac_sha512_update() - Update an HMAC-SHA512 context with message data
+ * @ctx: the HMAC context to update; must have been initialized
+ * @data: the message data
+ * @data_len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+static inline void hmac_sha512_update(struct hmac_sha512_ctx *ctx,
+ const u8 *data, size_t data_len)
+{
+ __sha512_update(&ctx->ctx.sha_ctx, data, data_len);
+}
+
+/**
+ * hmac_sha512_final() - Finish computing an HMAC-SHA512 value
+ * @ctx: the HMAC context to finalize; must have been initialized
+ * @out: (output) the resulting HMAC-SHA512 value
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void hmac_sha512_final(struct hmac_sha512_ctx *ctx,
+ u8 out[at_least SHA512_DIGEST_SIZE]);
+
+/**
+ * hmac_sha512() - Compute HMAC-SHA512 in one shot, using a prepared key
+ * @key: the prepared HMAC key
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA512 value
+ *
+ * If you're using the key only once, consider using hmac_sha512_usingrawkey().
+ *
+ * Context: Any context.
+ */
+void hmac_sha512(const struct hmac_sha512_key *key,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA512_DIGEST_SIZE]);
+
+/**
+ * hmac_sha512_usingrawkey() - Compute HMAC-SHA512 in one shot, using a raw key
+ * @raw_key: the raw HMAC-SHA512 key
+ * @raw_key_len: the key length in bytes. All key lengths are supported.
+ * @data: the message data
+ * @data_len: the data length in bytes
+ * @out: (output) the resulting HMAC-SHA512 value
+ *
+ * If you're using the key multiple times, prefer to use
+ * hmac_sha512_preparekey() followed by multiple calls to hmac_sha512() instead.
+ *
+ * Context: Any context.
+ */
+void hmac_sha512_usingrawkey(const u8 *raw_key, size_t raw_key_len,
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA512_DIGEST_SIZE]);
+
+#endif /* _CRYPTO_SHA2_H */
diff --git a/include/crypto/sha3.h b/include/crypto/sha3.h
new file mode 100644
index 000000000..c9e4182ff
--- /dev/null
+++ b/include/crypto/sha3.h
@@ -0,0 +1,346 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common values for SHA-3 algorithms
+ *
+ * See also Documentation/crypto/sha3.rst
+ */
+#ifndef __CRYPTO_SHA3_H__
+#define __CRYPTO_SHA3_H__
+
+#include <linux/types.h>
+#include <linux/string.h>
+
+#define SHA3_224_DIGEST_SIZE (224 / 8)
+#define SHA3_224_BLOCK_SIZE (200 - 2 * SHA3_224_DIGEST_SIZE)
+#define SHA3_224_EXPORT_SIZE SHA3_STATE_SIZE + SHA3_224_BLOCK_SIZE + 1
+
+#define SHA3_256_DIGEST_SIZE (256 / 8)
+#define SHA3_256_BLOCK_SIZE (200 - 2 * SHA3_256_DIGEST_SIZE)
+#define SHA3_256_EXPORT_SIZE SHA3_STATE_SIZE + SHA3_256_BLOCK_SIZE + 1
+
+#define SHA3_384_DIGEST_SIZE (384 / 8)
+#define SHA3_384_BLOCK_SIZE (200 - 2 * SHA3_384_DIGEST_SIZE)
+#define SHA3_384_EXPORT_SIZE SHA3_STATE_SIZE + SHA3_384_BLOCK_SIZE + 1
+
+#define SHA3_512_DIGEST_SIZE (512 / 8)
+#define SHA3_512_BLOCK_SIZE (200 - 2 * SHA3_512_DIGEST_SIZE)
+#define SHA3_512_EXPORT_SIZE SHA3_STATE_SIZE + SHA3_512_BLOCK_SIZE + 1
+
+/*
+ * SHAKE128 and SHAKE256 actually have variable output size, but this is used to
+ * calculate the block size (rate) analogously to the above.
+ */
+#define SHAKE128_DEFAULT_SIZE (128 / 8)
+#define SHAKE128_BLOCK_SIZE (200 - 2 * SHAKE128_DEFAULT_SIZE)
+#define SHAKE256_DEFAULT_SIZE (256 / 8)
+#define SHAKE256_BLOCK_SIZE (200 - 2 * SHAKE256_DEFAULT_SIZE)
+
+#define SHA3_STATE_SIZE 200
+
+/*
+ * State for the Keccak-f[1600] permutation: 25 64-bit words.
+ *
+ * We usually keep the state words as little-endian, to make absorbing and
+ * squeezing easier. (It means that absorbing and squeezing can just treat the
+ * state as a byte array.) The state words are converted to native-endian only
+ * temporarily by implementations of the permutation that need native-endian
+ * words. Of course, that conversion is a no-op on little-endian machines.
+ */
+struct sha3_state {
+ union {
+ __le64 words[SHA3_STATE_SIZE / 8];
+ u8 bytes[SHA3_STATE_SIZE];
+
+ u64 native_words[SHA3_STATE_SIZE / 8]; /* see comment above */
+ };
+};
+
+/* Internal context, shared by the digests (SHA3-*) and the XOFs (SHAKE*) */
+struct __sha3_ctx {
+ struct sha3_state state;
+ u8 digest_size; /* Digests only: the digest size in bytes */
+ u8 block_size; /* Block size in bytes */
+ u8 absorb_offset; /* Index of next state byte to absorb into */
+ u8 squeeze_offset; /* XOFs only: index of next state byte to extract */
+};
+
+void __sha3_update(struct __sha3_ctx *ctx, const u8 *in, size_t in_len);
+
+/**
+ * struct sha3_ctx - Context for SHA3-224, SHA3-256, SHA3-384, or SHA3-512
+ * @ctx: private
+ */
+struct sha3_ctx {
+ struct __sha3_ctx ctx;
+};
+
+/**
+ * sha3_zeroize_ctx() - Zeroize a SHA-3 context
+ * @ctx: The context to zeroize
+ *
+ * This is already called by sha3_final(). Call this explicitly when abandoning
+ * a context without calling sha3_final().
+ */
+static inline void sha3_zeroize_ctx(struct sha3_ctx *ctx)
+{
+ memzero_explicit(ctx, sizeof(*ctx));
+}
+
+/**
+ * struct shake_ctx - Context for SHAKE128 or SHAKE256
+ * @ctx: private
+ */
+struct shake_ctx {
+ struct __sha3_ctx ctx;
+};
+
+/**
+ * shake_zeroize_ctx() - Zeroize a SHAKE context
+ * @ctx: The context to zeroize
+ *
+ * Call this after the last squeeze.
+ */
+static inline void shake_zeroize_ctx(struct shake_ctx *ctx)
+{
+ memzero_explicit(ctx, sizeof(*ctx));
+}
+
+/**
+ * sha3_224_init() - Initialize a context for SHA3-224
+ * @ctx: The context to initialize
+ *
+ * This begins a new SHA3-224 message digest computation.
+ *
+ * Context: Any context.
+ */
+static inline void sha3_224_init(struct sha3_ctx *ctx)
+{
+ *ctx = (struct sha3_ctx){
+ .ctx.digest_size = SHA3_224_DIGEST_SIZE,
+ .ctx.block_size = SHA3_224_BLOCK_SIZE,
+ };
+}
+
+/**
+ * sha3_256_init() - Initialize a context for SHA3-256
+ * @ctx: The context to initialize
+ *
+ * This begins a new SHA3-256 message digest computation.
+ *
+ * Context: Any context.
+ */
+static inline void sha3_256_init(struct sha3_ctx *ctx)
+{
+ *ctx = (struct sha3_ctx){
+ .ctx.digest_size = SHA3_256_DIGEST_SIZE,
+ .ctx.block_size = SHA3_256_BLOCK_SIZE,
+ };
+}
+
+/**
+ * sha3_384_init() - Initialize a context for SHA3-384
+ * @ctx: The context to initialize
+ *
+ * This begins a new SHA3-384 message digest computation.
+ *
+ * Context: Any context.
+ */
+static inline void sha3_384_init(struct sha3_ctx *ctx)
+{
+ *ctx = (struct sha3_ctx){
+ .ctx.digest_size = SHA3_384_DIGEST_SIZE,
+ .ctx.block_size = SHA3_384_BLOCK_SIZE,
+ };
+}
+
+/**
+ * sha3_512_init() - Initialize a context for SHA3-512
+ * @ctx: The context to initialize
+ *
+ * This begins a new SHA3-512 message digest computation.
+ *
+ * Context: Any context.
+ */
+static inline void sha3_512_init(struct sha3_ctx *ctx)
+{
+ *ctx = (struct sha3_ctx){
+ .ctx.digest_size = SHA3_512_DIGEST_SIZE,
+ .ctx.block_size = SHA3_512_BLOCK_SIZE,
+ };
+}
+
+/**
+ * sha3_update() - Update a SHA-3 digest context with input data
+ * @ctx: The context to update; must have been initialized
+ * @in: The input data
+ * @in_len: Length of the input data in bytes
+ *
+ * This can be called any number of times to add data to a SHA3-224, SHA3-256,
+ * SHA3-384, or SHA3-512 digest (depending on which init function was called).
+ *
+ * Context: Any context.
+ */
+static inline void sha3_update(struct sha3_ctx *ctx,
+ const u8 *in, size_t in_len)
+{
+ __sha3_update(&ctx->ctx, in, in_len);
+}
+
+/**
+ * sha3_final() - Finish computing a SHA-3 message digest
+ * @ctx: The context to finalize; must have been initialized
+ * @out: (output) The resulting SHA3-224, SHA3-256, SHA3-384, or SHA3-512
+ * message digest, matching the init function that was called. Note that
+ * the size differs for each one; see SHA3_*_DIGEST_SIZE.
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sha3_final(struct sha3_ctx *ctx, u8 *out);
+
+/**
+ * shake128_init() - Initialize a context for SHAKE128
+ * @ctx: The context to initialize
+ *
+ * This begins a new SHAKE128 extendable-output function (XOF) computation.
+ *
+ * Context: Any context.
+ */
+static inline void shake128_init(struct shake_ctx *ctx)
+{
+ *ctx = (struct shake_ctx){
+ .ctx.block_size = SHAKE128_BLOCK_SIZE,
+ };
+}
+
+/**
+ * shake256_init() - Initialize a context for SHAKE256
+ * @ctx: The context to initialize
+ *
+ * This begins a new SHAKE256 extendable-output function (XOF) computation.
+ *
+ * Context: Any context.
+ */
+static inline void shake256_init(struct shake_ctx *ctx)
+{
+ *ctx = (struct shake_ctx){
+ .ctx.block_size = SHAKE256_BLOCK_SIZE,
+ };
+}
+
+/**
+ * shake_update() - Update a SHAKE context with input data
+ * @ctx: The context to update; must have been initialized
+ * @in: The input data
+ * @in_len: Length of the input data in bytes
+ *
+ * This can be called any number of times to add more input data to SHAKE128 or
+ * SHAKE256. This cannot be called after squeezing has begun.
+ *
+ * Context: Any context.
+ */
+static inline void shake_update(struct shake_ctx *ctx,
+ const u8 *in, size_t in_len)
+{
+ __sha3_update(&ctx->ctx, in, in_len);
+}
+
+/**
+ * shake_squeeze() - Generate output from SHAKE128 or SHAKE256
+ * @ctx: The context to squeeze; must have been initialized
+ * @out: Where to write the resulting output data
+ * @out_len: The amount of data to extract to @out in bytes
+ *
+ * This may be called multiple times. A number of consecutive squeezes laid
+ * end-to-end will yield the same output as one big squeeze generating the same
+ * total amount of output. More input cannot be provided after squeezing has
+ * begun. After the last squeeze, call shake_zeroize_ctx().
+ *
+ * Context: Any context.
+ */
+void shake_squeeze(struct shake_ctx *ctx, u8 *out, size_t out_len);
+
+/**
+ * sha3_224() - Compute SHA3-224 digest in one shot
+ * @in: The input data to be digested
+ * @in_len: Length of the input data in bytes
+ * @out: The buffer into which the digest will be stored
+ *
+ * Convenience function that computes a SHA3-224 digest. Use this instead of
+ * the incremental API if you're able to provide all the input at once.
+ *
+ * Context: Any context.
+ */
+void sha3_224(const u8 *in, size_t in_len, u8 out[SHA3_224_DIGEST_SIZE]);
+
+/**
+ * sha3_256() - Compute SHA3-256 digest in one shot
+ * @in: The input data to be digested
+ * @in_len: Length of the input data in bytes
+ * @out: The buffer into which the digest will be stored
+ *
+ * Convenience function that computes a SHA3-256 digest. Use this instead of
+ * the incremental API if you're able to provide all the input at once.
+ *
+ * Context: Any context.
+ */
+void sha3_256(const u8 *in, size_t in_len, u8 out[SHA3_256_DIGEST_SIZE]);
+
+/**
+ * sha3_384() - Compute SHA3-384 digest in one shot
+ * @in: The input data to be digested
+ * @in_len: Length of the input data in bytes
+ * @out: The buffer into which the digest will be stored
+ *
+ * Convenience function that computes a SHA3-384 digest. Use this instead of
+ * the incremental API if you're able to provide all the input at once.
+ *
+ * Context: Any context.
+ */
+void sha3_384(const u8 *in, size_t in_len, u8 out[SHA3_384_DIGEST_SIZE]);
+
+/**
+ * sha3_512() - Compute SHA3-512 digest in one shot
+ * @in: The input data to be digested
+ * @in_len: Length of the input data in bytes
+ * @out: The buffer into which the digest will be stored
+ *
+ * Convenience function that computes a SHA3-512 digest. Use this instead of
+ * the incremental API if you're able to provide all the input at once.
+ *
+ * Context: Any context.
+ */
+void sha3_512(const u8 *in, size_t in_len, u8 out[SHA3_512_DIGEST_SIZE]);
+
+/**
+ * shake128() - Compute SHAKE128 in one shot
+ * @in: The input data to be used
+ * @in_len: Length of the input data in bytes
+ * @out: The buffer into which the output will be stored
+ * @out_len: Length of the output to produce in bytes
+ *
+ * Convenience function that computes SHAKE128 in one shot. Use this instead of
+ * the incremental API if you're able to provide all the input at once as well
+ * as receive all the output at once. All output lengths are supported.
+ *
+ * Context: Any context.
+ */
+void shake128(const u8 *in, size_t in_len, u8 *out, size_t out_len);
+
+/**
+ * shake256() - Compute SHAKE256 in one shot
+ * @in: The input data to be used
+ * @in_len: Length of the input data in bytes
+ * @out: The buffer into which the output will be stored
+ * @out_len: Length of the output to produce in bytes
+ *
+ * Convenience function that computes SHAKE256 in one shot. Use this instead of
+ * the incremental API if you're able to provide all the input at once as well
+ * as receive all the output at once. All output lengths are supported.
+ *
+ * Context: Any context.
+ */
+void shake256(const u8 *in, size_t in_len, u8 *out, size_t out_len);
+
+#endif /* __CRYPTO_SHA3_H__ */
diff --git a/include/crypto/sig.h b/include/crypto/sig.h
new file mode 100644
index 000000000..fa6dafafa
--- /dev/null
+++ b/include/crypto/sig.h
@@ -0,0 +1,265 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Public Key Signature Algorithm
+ *
+ * Copyright (c) 2023 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_SIG_H
+#define _CRYPTO_SIG_H
+
+#include <linux/crypto.h>
+
+/**
+ * struct crypto_sig - user-instantiated objects which encapsulate
+ * algorithms and core processing logic
+ *
+ * @base: Common crypto API algorithm data structure
+ */
+struct crypto_sig {
+ struct crypto_tfm base;
+};
+
+/**
+ * struct sig_alg - generic public key signature algorithm
+ *
+ * @sign: Function performs a sign operation as defined by public key
+ * algorithm. On success, the signature size is returned.
+ * Optional.
+ * @verify: Function performs a complete verify operation as defined by
+ * public key algorithm, returning verification status. Optional.
+ * @set_pub_key: Function invokes the algorithm specific set public key
+ * function, which knows how to decode and interpret
+ * the BER encoded public key and parameters. Mandatory.
+ * @set_priv_key: Function invokes the algorithm specific set private key
+ * function, which knows how to decode and interpret
+ * the BER encoded private key and parameters. Optional.
+ * @key_size: Function returns key size. Mandatory.
+ * @digest_size: Function returns maximum digest size. Optional.
+ * @max_size: Function returns maximum signature size. Optional.
+ * @init: Initialize the cryptographic transformation object.
+ * This function is used to initialize the cryptographic
+ * transformation object. This function is called only once at
+ * the instantiation time, right after the transformation context
+ * was allocated. In case the cryptographic hardware has some
+ * special requirements which need to be handled by software, this
+ * function shall check for the precise requirement of the
+ * transformation and put any software fallbacks in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
+ *
+ * @base: Common crypto API algorithm data structure
+ */
+struct sig_alg {
+ int (*sign)(struct crypto_sig *tfm,
+ const void *src, unsigned int slen,
+ void *dst, unsigned int dlen);
+ int (*verify)(struct crypto_sig *tfm,
+ const void *src, unsigned int slen,
+ const void *digest, unsigned int dlen);
+ int (*set_pub_key)(struct crypto_sig *tfm,
+ const void *key, unsigned int keylen);
+ int (*set_priv_key)(struct crypto_sig *tfm,
+ const void *key, unsigned int keylen);
+ unsigned int (*key_size)(struct crypto_sig *tfm);
+ unsigned int (*digest_size)(struct crypto_sig *tfm);
+ unsigned int (*max_size)(struct crypto_sig *tfm);
+ int (*init)(struct crypto_sig *tfm);
+ void (*exit)(struct crypto_sig *tfm);
+
+ struct crypto_alg base;
+};
+
+/**
+ * DOC: Generic Public Key Signature API
+ *
+ * The Public Key Signature API is used with the algorithms of type
+ * CRYPTO_ALG_TYPE_SIG (listed as type "sig" in /proc/crypto)
+ */
+
+/**
+ * crypto_alloc_sig() - allocate signature tfm handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * signing algorithm e.g. "ecdsa"
+ * @type: specifies the type of the algorithm
+ * @mask: specifies the mask for the algorithm
+ *
+ * Allocate a handle for public key signature algorithm. The returned struct
+ * crypto_sig is the handle that is required for any subsequent
+ * API invocation for signature operations.
+ *
+ * Return: allocated handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_sig *crypto_alloc_sig(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_sig_tfm(struct crypto_sig *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct crypto_sig *__crypto_sig_tfm(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_sig, base);
+}
+
+static inline struct sig_alg *__crypto_sig_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct sig_alg, base);
+}
+
+static inline struct sig_alg *crypto_sig_alg(struct crypto_sig *tfm)
+{
+ return __crypto_sig_alg(crypto_sig_tfm(tfm)->__crt_alg);
+}
+
+/**
+ * crypto_free_sig() - free signature tfm handle
+ *
+ * @tfm: signature tfm handle allocated with crypto_alloc_sig()
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_sig(struct crypto_sig *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_sig_tfm(tfm));
+}
+
+/**
+ * crypto_sig_keysize() - Get key size
+ *
+ * Function returns the key size in bits.
+ * Function assumes that the key is already set in the transformation. If this
+ * function is called without a setkey or with a failed setkey, you may end up
+ * in a NULL dereference.
+ *
+ * @tfm: signature tfm handle allocated with crypto_alloc_sig()
+ */
+static inline unsigned int crypto_sig_keysize(struct crypto_sig *tfm)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->key_size(tfm);
+}
+
+/**
+ * crypto_sig_digestsize() - Get maximum digest size
+ *
+ * Function returns the maximum digest size in bytes.
+ * Function assumes that the key is already set in the transformation. If this
+ * function is called without a setkey or with a failed setkey, you may end up
+ * in a NULL dereference.
+ *
+ * @tfm: signature tfm handle allocated with crypto_alloc_sig()
+ */
+static inline unsigned int crypto_sig_digestsize(struct crypto_sig *tfm)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->digest_size(tfm);
+}
+
+/**
+ * crypto_sig_maxsize() - Get maximum signature size
+ *
+ * Function returns the maximum signature size in bytes.
+ * Function assumes that the key is already set in the transformation. If this
+ * function is called without a setkey or with a failed setkey, you may end up
+ * in a NULL dereference.
+ *
+ * @tfm: signature tfm handle allocated with crypto_alloc_sig()
+ */
+static inline unsigned int crypto_sig_maxsize(struct crypto_sig *tfm)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->max_size(tfm);
+}
+
+/**
+ * crypto_sig_sign() - Invoke signing operation
+ *
+ * Function invokes the specific signing operation for a given algorithm
+ *
+ * @tfm: signature tfm handle allocated with crypto_alloc_sig()
+ * @src: source buffer
+ * @slen: source length
+ * @dst: destination obuffer
+ * @dlen: destination length
+ *
+ * Return: signature size on success; error code in case of error
+ */
+static inline int crypto_sig_sign(struct crypto_sig *tfm,
+ const void *src, unsigned int slen,
+ void *dst, unsigned int dlen)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->sign(tfm, src, slen, dst, dlen);
+}
+
+/**
+ * crypto_sig_verify() - Invoke signature verification
+ *
+ * Function invokes the specific signature verification operation
+ * for a given algorithm.
+ *
+ * @tfm: signature tfm handle allocated with crypto_alloc_sig()
+ * @src: source buffer
+ * @slen: source length
+ * @digest: digest
+ * @dlen: digest length
+ *
+ * Return: zero on verification success; error code in case of error.
+ */
+static inline int crypto_sig_verify(struct crypto_sig *tfm,
+ const void *src, unsigned int slen,
+ const void *digest, unsigned int dlen)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->verify(tfm, src, slen, digest, dlen);
+}
+
+/**
+ * crypto_sig_set_pubkey() - Invoke set public key operation
+ *
+ * Function invokes the algorithm specific set key function, which knows
+ * how to decode and interpret the encoded key and parameters
+ *
+ * @tfm: tfm handle
+ * @key: BER encoded public key, algo OID, paramlen, BER encoded
+ * parameters
+ * @keylen: length of the key (not including other data)
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_sig_set_pubkey(struct crypto_sig *tfm,
+ const void *key, unsigned int keylen)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->set_pub_key(tfm, key, keylen);
+}
+
+/**
+ * crypto_sig_set_privkey() - Invoke set private key operation
+ *
+ * Function invokes the algorithm specific set key function, which knows
+ * how to decode and interpret the encoded key and parameters
+ *
+ * @tfm: tfm handle
+ * @key: BER encoded private key, algo OID, paramlen, BER encoded
+ * parameters
+ * @keylen: length of the key (not including other data)
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_sig_set_privkey(struct crypto_sig *tfm,
+ const void *key, unsigned int keylen)
+{
+ struct sig_alg *alg = crypto_sig_alg(tfm);
+
+ return alg->set_priv_key(tfm, key, keylen);
+}
+#endif
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
new file mode 100644
index 000000000..4efe2ca8c
--- /dev/null
+++ b/include/crypto/skcipher.h
@@ -0,0 +1,941 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Symmetric key ciphers.
+ *
+ * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_SKCIPHER_H
+#define _CRYPTO_SKCIPHER_H
+
+#include <linux/atomic.h>
+#include <linux/container_of.h>
+#include <linux/crypto.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+/* Set this bit if the lskcipher operation is a continuation. */
+#define CRYPTO_LSKCIPHER_FLAG_CONT 0x00000001
+/* Set this bit if the lskcipher operation is final. */
+#define CRYPTO_LSKCIPHER_FLAG_FINAL 0x00000002
+/* The bit CRYPTO_TFM_REQ_MAY_SLEEP can also be set if needed. */
+
+/* Set this bit if the skcipher operation is a continuation. */
+#define CRYPTO_SKCIPHER_REQ_CONT 0x00000001
+/* Set this bit if the skcipher operation is not final. */
+#define CRYPTO_SKCIPHER_REQ_NOTFINAL 0x00000002
+
+struct scatterlist;
+
+/**
+ * struct skcipher_request - Symmetric key cipher request
+ * @cryptlen: Number of bytes to encrypt or decrypt
+ * @iv: Initialisation Vector
+ * @src: Source SG list
+ * @dst: Destination SG list
+ * @base: Underlying async request
+ * @__ctx: Start of private context data
+ */
+struct skcipher_request {
+ unsigned int cryptlen;
+
+ u8 *iv;
+
+ struct scatterlist *src;
+ struct scatterlist *dst;
+
+ struct crypto_async_request base;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+struct crypto_skcipher {
+ unsigned int reqsize;
+
+ struct crypto_tfm base;
+};
+
+struct crypto_sync_skcipher {
+ struct crypto_skcipher base;
+};
+
+struct crypto_lskcipher {
+ struct crypto_tfm base;
+};
+
+/*
+ * struct skcipher_alg_common - common properties of skcipher_alg
+ * @min_keysize: Minimum key size supported by the transformation. This is the
+ * smallest key length supported by this transformation algorithm.
+ * This must be set to one of the pre-defined values as this is
+ * not hardware specific. Possible values for this field can be
+ * found via git grep "_MIN_KEY_SIZE" include/crypto/
+ * @max_keysize: Maximum key size supported by the transformation. This is the
+ * largest key length supported by this transformation algorithm.
+ * This must be set to one of the pre-defined values as this is
+ * not hardware specific. Possible values for this field can be
+ * found via git grep "_MAX_KEY_SIZE" include/crypto/
+ * @ivsize: IV size applicable for transformation. The consumer must provide an
+ * IV of exactly that size to perform the encrypt or decrypt operation.
+ * @chunksize: Equal to the block size except for stream ciphers such as
+ * CTR where it is set to the underlying block size.
+ * @statesize: Size of the internal state for the algorithm.
+ * @base: Definition of a generic crypto algorithm.
+ */
+#define SKCIPHER_ALG_COMMON { \
+ unsigned int min_keysize; \
+ unsigned int max_keysize; \
+ unsigned int ivsize; \
+ unsigned int chunksize; \
+ unsigned int statesize; \
+ \
+ struct crypto_alg base; \
+}
+struct skcipher_alg_common SKCIPHER_ALG_COMMON;
+
+/**
+ * struct skcipher_alg - symmetric key cipher definition
+ * @setkey: Set key for the transformation. This function is used to either
+ * program a supplied key into the hardware or store the key in the
+ * transformation context for programming it later. Note that this
+ * function does modify the transformation context. This function can
+ * be called multiple times during the existence of the transformation
+ * object, so one must make sure the key is properly reprogrammed into
+ * the hardware. This function is also responsible for checking the key
+ * length for validity. In case a software fallback was put in place in
+ * the @cra_init call, this function might need to use the fallback if
+ * the algorithm doesn't support all of the key sizes.
+ * @encrypt: Encrypt a scatterlist of blocks. This function is used to encrypt
+ * the supplied scatterlist containing the blocks of data. The crypto
+ * API consumer is responsible for aligning the entries of the
+ * scatterlist properly and making sure the chunks are correctly
+ * sized. In case a software fallback was put in place in the
+ * @cra_init call, this function might need to use the fallback if
+ * the algorithm doesn't support all of the key sizes. In case the
+ * key was stored in transformation context, the key might need to be
+ * re-programmed into the hardware in this function. This function
+ * shall not modify the transformation context, as this function may
+ * be called in parallel with the same transformation object.
+ * @decrypt: Decrypt a single block. This is a reverse counterpart to @encrypt
+ * and the conditions are exactly the same.
+ * @export: Export partial state of the transformation. This function dumps the
+ * entire state of the ongoing transformation into a provided block of
+ * data so it can be @import 'ed back later on. This is useful in case
+ * you want to save partial result of the transformation after
+ * processing certain amount of data and reload this partial result
+ * multiple times later on for multiple re-use. No data processing
+ * happens at this point.
+ * @import: Import partial state of the transformation. This function loads the
+ * entire state of the ongoing transformation from a provided block of
+ * data so the transformation can continue from this point onward. No
+ * data processing happens at this point.
+ * @init: Initialize the cryptographic transformation object. This function
+ * is used to initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation time, right
+ * after the transformation context was allocated. In case the
+ * cryptographic hardware has some special requirements which need to
+ * be handled by software, this function shall check for the precise
+ * requirement of the transformation and put any software fallbacks
+ * in place.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
+ * @walksize: Equal to the chunk size except in cases where the algorithm is
+ * considerably more efficient if it can operate on multiple chunks
+ * in parallel. Should be a multiple of chunksize.
+ * @co: see struct skcipher_alg_common
+ * @SKCIPHER_ALG_COMMON: see struct skcipher_alg_common
+ *
+ * All fields except @ivsize are mandatory and must be filled.
+ */
+struct skcipher_alg {
+ int (*setkey)(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*encrypt)(struct skcipher_request *req);
+ int (*decrypt)(struct skcipher_request *req);
+ int (*export)(struct skcipher_request *req, void *out);
+ int (*import)(struct skcipher_request *req, const void *in);
+ int (*init)(struct crypto_skcipher *tfm);
+ void (*exit)(struct crypto_skcipher *tfm);
+
+ unsigned int walksize;
+
+ union {
+ struct SKCIPHER_ALG_COMMON;
+ struct skcipher_alg_common co;
+ };
+};
+
+/**
+ * struct lskcipher_alg - linear symmetric key cipher definition
+ * @setkey: Set key for the transformation. This function is used to either
+ * program a supplied key into the hardware or store the key in the
+ * transformation context for programming it later. Note that this
+ * function does modify the transformation context. This function can
+ * be called multiple times during the existence of the transformation
+ * object, so one must make sure the key is properly reprogrammed into
+ * the hardware. This function is also responsible for checking the key
+ * length for validity. In case a software fallback was put in place in
+ * the @cra_init call, this function might need to use the fallback if
+ * the algorithm doesn't support all of the key sizes.
+ * @encrypt: Encrypt a number of bytes. This function is used to encrypt
+ * the supplied data. This function shall not modify
+ * the transformation context, as this function may be called
+ * in parallel with the same transformation object. Data
+ * may be left over if length is not a multiple of blocks
+ * and there is more to come (final == false). The number of
+ * left-over bytes should be returned in case of success.
+ * The siv field shall be as long as ivsize + statesize with
+ * the IV placed at the front. The state will be used by the
+ * algorithm internally.
+ * @decrypt: Decrypt a number of bytes. This is a reverse counterpart to
+ * @encrypt and the conditions are exactly the same.
+ * @init: Initialize the cryptographic transformation object. This function
+ * is used to initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation time, right
+ * after the transformation context was allocated.
+ * @exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @init, used to remove various changes set in
+ * @init.
+ * @co: see struct skcipher_alg_common
+ */
+struct lskcipher_alg {
+ int (*setkey)(struct crypto_lskcipher *tfm, const u8 *key,
+ unsigned int keylen);
+ int (*encrypt)(struct crypto_lskcipher *tfm, const u8 *src,
+ u8 *dst, unsigned len, u8 *siv, u32 flags);
+ int (*decrypt)(struct crypto_lskcipher *tfm, const u8 *src,
+ u8 *dst, unsigned len, u8 *siv, u32 flags);
+ int (*init)(struct crypto_lskcipher *tfm);
+ void (*exit)(struct crypto_lskcipher *tfm);
+
+ struct skcipher_alg_common co;
+};
+
+#define MAX_SYNC_SKCIPHER_REQSIZE 384
+/*
+ * This performs a type-check against the "_tfm" argument to make sure
+ * all users have the correct skcipher tfm for doing on-stack requests.
+ */
+#define SYNC_SKCIPHER_REQUEST_ON_STACK(name, _tfm) \
+ char __##name##_desc[sizeof(struct skcipher_request) + \
+ MAX_SYNC_SKCIPHER_REQSIZE \
+ ] CRYPTO_MINALIGN_ATTR; \
+ struct skcipher_request *name = \
+ (((struct skcipher_request *)__##name##_desc)->base.tfm = \
+ crypto_sync_skcipher_tfm((_tfm)), \
+ (void *)__##name##_desc)
+
+/**
+ * DOC: Symmetric Key Cipher API
+ *
+ * Symmetric key cipher API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_SKCIPHER (listed as type "skcipher" in /proc/crypto).
+ *
+ * Asynchronous cipher operations imply that the function invocation for a
+ * cipher request returns immediately before the completion of the operation.
+ * The cipher request is scheduled as a separate kernel thread and therefore
+ * load-balanced on the different CPUs via the process scheduler. To allow
+ * the kernel crypto API to inform the caller about the completion of a cipher
+ * request, the caller must provide a callback function. That function is
+ * invoked with the cipher handle when the request completes.
+ *
+ * To support the asynchronous operation, additional information than just the
+ * cipher handle must be supplied to the kernel crypto API. That additional
+ * information is given by filling in the skcipher_request data structure.
+ *
+ * For the symmetric key cipher API, the state is maintained with the tfm
+ * cipher handle. A single tfm can be used across multiple calls and in
+ * parallel. For asynchronous block cipher calls, context data supplied and
+ * only used by the caller can be referenced the request data structure in
+ * addition to the IV used for the cipher request. The maintenance of such
+ * state information would be important for a crypto driver implementer to
+ * have, because when calling the callback function upon completion of the
+ * cipher operation, that callback function may need some information about
+ * which operation just finished if it invoked multiple in parallel. This
+ * state information is unused by the kernel crypto API.
+ */
+
+static inline struct crypto_skcipher *__crypto_skcipher_cast(
+ struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_skcipher, base);
+}
+
+/**
+ * crypto_alloc_skcipher() - allocate symmetric key cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * skcipher cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an skcipher. The returned struct
+ * crypto_skcipher is the cipher handle that is required for any subsequent
+ * API invocation for that skcipher.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_skcipher *crypto_alloc_skcipher(const char *alg_name,
+ u32 type, u32 mask);
+
+struct crypto_sync_skcipher *crypto_alloc_sync_skcipher(const char *alg_name,
+ u32 type, u32 mask);
+
+
+/**
+ * crypto_alloc_lskcipher() - allocate linear symmetric key cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * lskcipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an lskcipher. The returned struct
+ * crypto_lskcipher is the cipher handle that is required for any subsequent
+ * API invocation for that lskcipher.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
+struct crypto_lskcipher *crypto_alloc_lskcipher(const char *alg_name,
+ u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_skcipher_tfm(
+ struct crypto_skcipher *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct crypto_tfm *crypto_lskcipher_tfm(
+ struct crypto_lskcipher *tfm)
+{
+ return &tfm->base;
+}
+
+static inline struct crypto_tfm *crypto_sync_skcipher_tfm(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_tfm(&tfm->base);
+}
+
+/**
+ * crypto_free_skcipher() - zeroize and free cipher handle
+ * @tfm: cipher handle to be freed
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_skcipher(struct crypto_skcipher *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_skcipher_tfm(tfm));
+}
+
+static inline void crypto_free_sync_skcipher(struct crypto_sync_skcipher *tfm)
+{
+ crypto_free_skcipher(&tfm->base);
+}
+
+/**
+ * crypto_free_lskcipher() - zeroize and free cipher handle
+ * @tfm: cipher handle to be freed
+ *
+ * If @tfm is a NULL or error pointer, this function does nothing.
+ */
+static inline void crypto_free_lskcipher(struct crypto_lskcipher *tfm)
+{
+ crypto_destroy_tfm(tfm, crypto_lskcipher_tfm(tfm));
+}
+
+/**
+ * crypto_has_skcipher() - Search for the availability of an skcipher.
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * skcipher
+ * @type: specifies the type of the skcipher
+ * @mask: specifies the mask for the skcipher
+ *
+ * Return: true when the skcipher is known to the kernel crypto API; false
+ * otherwise
+ */
+int crypto_has_skcipher(const char *alg_name, u32 type, u32 mask);
+
+static inline const char *crypto_skcipher_driver_name(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_tfm_alg_driver_name(crypto_skcipher_tfm(tfm));
+}
+
+static inline const char *crypto_lskcipher_driver_name(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_tfm_alg_driver_name(crypto_lskcipher_tfm(tfm));
+}
+
+static inline struct skcipher_alg_common *crypto_skcipher_alg_common(
+ struct crypto_skcipher *tfm)
+{
+ return container_of(crypto_skcipher_tfm(tfm)->__crt_alg,
+ struct skcipher_alg_common, base);
+}
+
+static inline struct skcipher_alg *crypto_skcipher_alg(
+ struct crypto_skcipher *tfm)
+{
+ return container_of(crypto_skcipher_tfm(tfm)->__crt_alg,
+ struct skcipher_alg, base);
+}
+
+static inline struct lskcipher_alg *crypto_lskcipher_alg(
+ struct crypto_lskcipher *tfm)
+{
+ return container_of(crypto_lskcipher_tfm(tfm)->__crt_alg,
+ struct lskcipher_alg, co.base);
+}
+
+/**
+ * crypto_skcipher_ivsize() - obtain IV size
+ * @tfm: cipher handle
+ *
+ * The size of the IV for the skcipher referenced by the cipher handle is
+ * returned. This IV size may be zero if the cipher does not need an IV.
+ *
+ * Return: IV size in bytes
+ */
+static inline unsigned int crypto_skcipher_ivsize(struct crypto_skcipher *tfm)
+{
+ return crypto_skcipher_alg_common(tfm)->ivsize;
+}
+
+static inline unsigned int crypto_sync_skcipher_ivsize(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_ivsize(&tfm->base);
+}
+
+/**
+ * crypto_lskcipher_ivsize() - obtain IV size
+ * @tfm: cipher handle
+ *
+ * The size of the IV for the lskcipher referenced by the cipher handle is
+ * returned. This IV size may be zero if the cipher does not need an IV.
+ *
+ * Return: IV size in bytes
+ */
+static inline unsigned int crypto_lskcipher_ivsize(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_lskcipher_alg(tfm)->co.ivsize;
+}
+
+/**
+ * crypto_skcipher_blocksize() - obtain block size of cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the skcipher referenced with the cipher handle is
+ * returned. The caller may use that information to allocate appropriate
+ * memory for the data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_skcipher_blocksize(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_skcipher_tfm(tfm));
+}
+
+/**
+ * crypto_lskcipher_blocksize() - obtain block size of cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the lskcipher referenced with the cipher handle is
+ * returned. The caller may use that information to allocate appropriate
+ * memory for the data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_lskcipher_blocksize(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_tfm_alg_blocksize(crypto_lskcipher_tfm(tfm));
+}
+
+/**
+ * crypto_skcipher_chunksize() - obtain chunk size
+ * @tfm: cipher handle
+ *
+ * The block size is set to one for ciphers such as CTR. However,
+ * you still need to provide incremental updates in multiples of
+ * the underlying block size as the IV does not have sub-block
+ * granularity. This is known in this API as the chunk size.
+ *
+ * Return: chunk size in bytes
+ */
+static inline unsigned int crypto_skcipher_chunksize(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_skcipher_alg_common(tfm)->chunksize;
+}
+
+/**
+ * crypto_lskcipher_chunksize() - obtain chunk size
+ * @tfm: cipher handle
+ *
+ * The block size is set to one for ciphers such as CTR. However,
+ * you still need to provide incremental updates in multiples of
+ * the underlying block size as the IV does not have sub-block
+ * granularity. This is known in this API as the chunk size.
+ *
+ * Return: chunk size in bytes
+ */
+static inline unsigned int crypto_lskcipher_chunksize(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_lskcipher_alg(tfm)->co.chunksize;
+}
+
+/**
+ * crypto_skcipher_statesize() - obtain state size
+ * @tfm: cipher handle
+ *
+ * Some algorithms cannot be chained with the IV alone. They carry
+ * internal state which must be replicated if data is to be processed
+ * incrementally. The size of that state can be obtained with this
+ * function.
+ *
+ * Return: state size in bytes
+ */
+static inline unsigned int crypto_skcipher_statesize(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_skcipher_alg_common(tfm)->statesize;
+}
+
+/**
+ * crypto_lskcipher_statesize() - obtain state size
+ * @tfm: cipher handle
+ *
+ * Some algorithms cannot be chained with the IV alone. They carry
+ * internal state which must be replicated if data is to be processed
+ * incrementally. The size of that state can be obtained with this
+ * function.
+ *
+ * Return: state size in bytes
+ */
+static inline unsigned int crypto_lskcipher_statesize(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_lskcipher_alg(tfm)->co.statesize;
+}
+
+static inline unsigned int crypto_sync_skcipher_blocksize(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_blocksize(&tfm->base);
+}
+
+static inline unsigned int crypto_skcipher_alignmask(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_skcipher_tfm(tfm));
+}
+
+static inline unsigned int crypto_lskcipher_alignmask(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_lskcipher_tfm(tfm));
+}
+
+static inline u32 crypto_skcipher_get_flags(struct crypto_skcipher *tfm)
+{
+ return crypto_tfm_get_flags(crypto_skcipher_tfm(tfm));
+}
+
+static inline void crypto_skcipher_set_flags(struct crypto_skcipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_set_flags(crypto_skcipher_tfm(tfm), flags);
+}
+
+static inline void crypto_skcipher_clear_flags(struct crypto_skcipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_skcipher_tfm(tfm), flags);
+}
+
+static inline u32 crypto_sync_skcipher_get_flags(
+ struct crypto_sync_skcipher *tfm)
+{
+ return crypto_skcipher_get_flags(&tfm->base);
+}
+
+static inline void crypto_sync_skcipher_set_flags(
+ struct crypto_sync_skcipher *tfm, u32 flags)
+{
+ crypto_skcipher_set_flags(&tfm->base, flags);
+}
+
+static inline void crypto_sync_skcipher_clear_flags(
+ struct crypto_sync_skcipher *tfm, u32 flags)
+{
+ crypto_skcipher_clear_flags(&tfm->base, flags);
+}
+
+static inline u32 crypto_lskcipher_get_flags(struct crypto_lskcipher *tfm)
+{
+ return crypto_tfm_get_flags(crypto_lskcipher_tfm(tfm));
+}
+
+static inline void crypto_lskcipher_set_flags(struct crypto_lskcipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_set_flags(crypto_lskcipher_tfm(tfm), flags);
+}
+
+static inline void crypto_lskcipher_clear_flags(struct crypto_lskcipher *tfm,
+ u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_lskcipher_tfm(tfm), flags);
+}
+
+/**
+ * crypto_skcipher_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the skcipher referenced by the cipher
+ * handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_skcipher_setkey(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen);
+
+static inline int crypto_sync_skcipher_setkey(struct crypto_sync_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return crypto_skcipher_setkey(&tfm->base, key, keylen);
+}
+
+/**
+ * crypto_lskcipher_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the lskcipher referenced by the cipher
+ * handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
+int crypto_lskcipher_setkey(struct crypto_lskcipher *tfm,
+ const u8 *key, unsigned int keylen);
+
+static inline unsigned int crypto_skcipher_min_keysize(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_skcipher_alg_common(tfm)->min_keysize;
+}
+
+static inline unsigned int crypto_skcipher_max_keysize(
+ struct crypto_skcipher *tfm)
+{
+ return crypto_skcipher_alg_common(tfm)->max_keysize;
+}
+
+static inline unsigned int crypto_lskcipher_min_keysize(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_lskcipher_alg(tfm)->co.min_keysize;
+}
+
+static inline unsigned int crypto_lskcipher_max_keysize(
+ struct crypto_lskcipher *tfm)
+{
+ return crypto_lskcipher_alg(tfm)->co.max_keysize;
+}
+
+/**
+ * crypto_skcipher_reqtfm() - obtain cipher handle from request
+ * @req: skcipher_request out of which the cipher handle is to be obtained
+ *
+ * Return the crypto_skcipher handle when furnishing an skcipher_request
+ * data structure.
+ *
+ * Return: crypto_skcipher handle
+ */
+static inline struct crypto_skcipher *crypto_skcipher_reqtfm(
+ struct skcipher_request *req)
+{
+ return __crypto_skcipher_cast(req->base.tfm);
+}
+
+static inline struct crypto_sync_skcipher *crypto_sync_skcipher_reqtfm(
+ struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+
+ return container_of(tfm, struct crypto_sync_skcipher, base);
+}
+
+/**
+ * crypto_skcipher_encrypt() - encrypt plaintext
+ * @req: reference to the skcipher_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Encrypt plaintext data using the skcipher_request handle. That data
+ * structure and how it is filled with data is discussed with the
+ * skcipher_request_* functions.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
+int crypto_skcipher_encrypt(struct skcipher_request *req);
+
+/**
+ * crypto_skcipher_decrypt() - decrypt ciphertext
+ * @req: reference to the skcipher_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Decrypt ciphertext data using the skcipher_request handle. That data
+ * structure and how it is filled with data is discussed with the
+ * skcipher_request_* functions.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
+int crypto_skcipher_decrypt(struct skcipher_request *req);
+
+/**
+ * crypto_skcipher_export() - export partial state
+ * @req: reference to the skcipher_request handle that holds all information
+ * needed to perform the operation
+ * @out: output buffer of sufficient size that can hold the state
+ *
+ * Export partial state of the transformation. This function dumps the
+ * entire state of the ongoing transformation into a provided block of
+ * data so it can be @import 'ed back later on. This is useful in case
+ * you want to save partial result of the transformation after
+ * processing certain amount of data and reload this partial result
+ * multiple times later on for multiple re-use. No data processing
+ * happens at this point.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
+int crypto_skcipher_export(struct skcipher_request *req, void *out);
+
+/**
+ * crypto_skcipher_import() - import partial state
+ * @req: reference to the skcipher_request handle that holds all information
+ * needed to perform the operation
+ * @in: buffer holding the state
+ *
+ * Import partial state of the transformation. This function loads the
+ * entire state of the ongoing transformation from a provided block of
+ * data so the transformation can continue from this point onward. No
+ * data processing happens at this point.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
+int crypto_skcipher_import(struct skcipher_request *req, const void *in);
+
+/**
+ * crypto_lskcipher_encrypt() - encrypt plaintext
+ * @tfm: lskcipher handle
+ * @src: source buffer
+ * @dst: destination buffer
+ * @len: number of bytes to process
+ * @siv: IV + state for the cipher operation. The length of the IV must
+ * comply with the IV size defined by crypto_lskcipher_ivsize. The
+ * IV is then followed with a buffer with the length as specified by
+ * crypto_lskcipher_statesize.
+ * Encrypt plaintext data using the lskcipher handle.
+ *
+ * Return: >=0 if the cipher operation was successful, if positive
+ * then this many bytes have been left unprocessed;
+ * < 0 if an error occurred
+ */
+int crypto_lskcipher_encrypt(struct crypto_lskcipher *tfm, const u8 *src,
+ u8 *dst, unsigned len, u8 *siv);
+
+/**
+ * crypto_lskcipher_decrypt() - decrypt ciphertext
+ * @tfm: lskcipher handle
+ * @src: source buffer
+ * @dst: destination buffer
+ * @len: number of bytes to process
+ * @siv: IV + state for the cipher operation. The length of the IV must
+ * comply with the IV size defined by crypto_lskcipher_ivsize. The
+ * IV is then followed with a buffer with the length as specified by
+ * crypto_lskcipher_statesize.
+ *
+ * Decrypt ciphertext data using the lskcipher handle.
+ *
+ * Return: >=0 if the cipher operation was successful, if positive
+ * then this many bytes have been left unprocessed;
+ * < 0 if an error occurred
+ */
+int crypto_lskcipher_decrypt(struct crypto_lskcipher *tfm, const u8 *src,
+ u8 *dst, unsigned len, u8 *siv);
+
+/**
+ * DOC: Symmetric Key Cipher Request Handle
+ *
+ * The skcipher_request data structure contains all pointers to data
+ * required for the symmetric key cipher operation. This includes the cipher
+ * handle (which can be used by multiple skcipher_request instances), pointer
+ * to plaintext and ciphertext, asynchronous callback function, etc. It acts
+ * as a handle to the skcipher_request_* API calls in a similar way as
+ * skcipher handle to the crypto_skcipher_* API calls.
+ */
+
+/**
+ * crypto_skcipher_reqsize() - obtain size of the request data structure
+ * @tfm: cipher handle
+ *
+ * Return: number of bytes
+ */
+static inline unsigned int crypto_skcipher_reqsize(struct crypto_skcipher *tfm)
+{
+ return tfm->reqsize;
+}
+
+/**
+ * skcipher_request_set_tfm() - update cipher handle reference in request
+ * @req: request handle to be modified
+ * @tfm: cipher handle that shall be added to the request handle
+ *
+ * Allow the caller to replace the existing skcipher handle in the request
+ * data structure with a different one.
+ */
+static inline void skcipher_request_set_tfm(struct skcipher_request *req,
+ struct crypto_skcipher *tfm)
+{
+ req->base.tfm = crypto_skcipher_tfm(tfm);
+}
+
+static inline void skcipher_request_set_sync_tfm(struct skcipher_request *req,
+ struct crypto_sync_skcipher *tfm)
+{
+ skcipher_request_set_tfm(req, &tfm->base);
+}
+
+static inline struct skcipher_request *skcipher_request_cast(
+ struct crypto_async_request *req)
+{
+ return container_of(req, struct skcipher_request, base);
+}
+
+/**
+ * skcipher_request_alloc() - allocate request data structure
+ * @tfm: cipher handle to be registered with the request
+ * @gfp: memory allocation flag that is handed to kmalloc by the API call.
+ *
+ * Allocate the request data structure that must be used with the skcipher
+ * encrypt and decrypt API calls. During the allocation, the provided skcipher
+ * handle is registered in the request data structure.
+ *
+ * Return: allocated request handle in case of success, or NULL if out of memory
+ */
+static inline struct skcipher_request *skcipher_request_alloc_noprof(
+ struct crypto_skcipher *tfm, gfp_t gfp)
+{
+ struct skcipher_request *req;
+
+ req = kmalloc_noprof(sizeof(struct skcipher_request) +
+ crypto_skcipher_reqsize(tfm), gfp);
+
+ if (likely(req))
+ skcipher_request_set_tfm(req, tfm);
+
+ return req;
+}
+#define skcipher_request_alloc(...) alloc_hooks(skcipher_request_alloc_noprof(__VA_ARGS__))
+
+/**
+ * skcipher_request_free() - zeroize and free request data structure
+ * @req: request data structure cipher handle to be freed
+ */
+static inline void skcipher_request_free(struct skcipher_request *req)
+{
+ kfree_sensitive(req);
+}
+
+static inline void skcipher_request_zero(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+
+ memzero_explicit(req, sizeof(*req) + crypto_skcipher_reqsize(tfm));
+}
+
+/**
+ * skcipher_request_set_callback() - set asynchronous callback function
+ * @req: request handle
+ * @flags: specify zero or an ORing of the flags
+ * CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
+ * increase the wait queue beyond the initial maximum size;
+ * CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
+ * @compl: callback function pointer to be registered with the request handle
+ * @data: The data pointer refers to memory that is not used by the kernel
+ * crypto API, but provided to the callback function for it to use. Here,
+ * the caller can provide a reference to memory the callback function can
+ * operate on. As the callback function is invoked asynchronously to the
+ * related functionality, it may need to access data structures of the
+ * related functionality which can be referenced using this pointer. The
+ * callback function can access the memory via the "data" field in the
+ * crypto_async_request data structure provided to the callback function.
+ *
+ * This function allows setting the callback function that is triggered once the
+ * cipher operation completes.
+ *
+ * The callback function is registered with the skcipher_request handle and
+ * must comply with the following template::
+ *
+ * void callback_function(struct crypto_async_request *req, int error)
+ */
+static inline void skcipher_request_set_callback(struct skcipher_request *req,
+ u32 flags,
+ crypto_completion_t compl,
+ void *data)
+{
+ req->base.complete = compl;
+ req->base.data = data;
+ req->base.flags = flags;
+}
+
+/**
+ * skcipher_request_set_crypt() - set data buffers
+ * @req: request handle
+ * @src: source scatter / gather list
+ * @dst: destination scatter / gather list
+ * @cryptlen: number of bytes to process from @src
+ * @iv: IV for the cipher operation which must comply with the IV size defined
+ * by crypto_skcipher_ivsize
+ *
+ * This function allows setting of the source data and destination data
+ * scatter / gather lists.
+ *
+ * For encryption, the source is treated as the plaintext and the
+ * destination is the ciphertext. For a decryption operation, the use is
+ * reversed - the source is the ciphertext and the destination is the plaintext.
+ */
+static inline void skcipher_request_set_crypt(
+ struct skcipher_request *req,
+ struct scatterlist *src, struct scatterlist *dst,
+ unsigned int cryptlen, void *iv)
+{
+ req->src = src;
+ req->dst = dst;
+ req->cryptlen = cryptlen;
+ req->iv = iv;
+}
+
+#endif /* _CRYPTO_SKCIPHER_H */
+
diff --git a/include/crypto/sm3.h b/include/crypto/sm3.h
new file mode 100644
index 000000000..371e8a661
--- /dev/null
+++ b/include/crypto/sm3.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * SM3 hash algorithm
+ *
+ * Copyright (C) 2017 ARM Limited or its affiliates.
+ * Copyright (C) 2017 Gilad Ben-Yossef <gilad@benyossef.com>
+ * Copyright (C) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#ifndef _CRYPTO_SM3_H
+#define _CRYPTO_SM3_H
+
+#include <linux/types.h>
+
+#define SM3_DIGEST_SIZE 32
+#define SM3_BLOCK_SIZE 64
+
+#define SM3_IVA 0x7380166f
+#define SM3_IVB 0x4914b2b9
+#define SM3_IVC 0x172442d7
+#define SM3_IVD 0xda8a0600
+#define SM3_IVE 0xa96f30bc
+#define SM3_IVF 0x163138aa
+#define SM3_IVG 0xe38dee4d
+#define SM3_IVH 0xb0fb0e4e
+
+/* State for the SM3 compression function */
+struct sm3_block_state {
+ u32 h[SM3_DIGEST_SIZE / 4];
+};
+
+/**
+ * struct sm3_ctx - Context for hashing a message with SM3
+ * @state: the compression function state
+ * @bytecount: number of bytes processed so far
+ * @buf: partial block buffer; bytecount % SM3_BLOCK_SIZE bytes are valid
+ */
+struct sm3_ctx {
+ struct sm3_block_state state;
+ u64 bytecount;
+ u8 buf[SM3_BLOCK_SIZE] __aligned(__alignof__(__be64));
+};
+
+/**
+ * sm3_init() - Initialize an SM3 context for a new message
+ * @ctx: the context to initialize
+ *
+ * If you don't need incremental computation, consider sm3() instead.
+ *
+ * Context: Any context.
+ */
+void sm3_init(struct sm3_ctx *ctx);
+
+/**
+ * sm3_update() - Update an SM3 context with message data
+ * @ctx: the context to update; must have been initialized
+ * @data: the message data
+ * @len: the data length in bytes
+ *
+ * This can be called any number of times.
+ *
+ * Context: Any context.
+ */
+void sm3_update(struct sm3_ctx *ctx, const u8 *data, size_t len);
+
+/**
+ * sm3_final() - Finish computing an SM3 message digest
+ * @ctx: the context to finalize; must have been initialized
+ * @out: (output) the resulting SM3 message digest
+ *
+ * After finishing, this zeroizes @ctx. So the caller does not need to do it.
+ *
+ * Context: Any context.
+ */
+void sm3_final(struct sm3_ctx *ctx, u8 out[at_least SM3_DIGEST_SIZE]);
+
+/**
+ * sm3() - Compute SM3 message digest in one shot
+ * @data: the message data
+ * @len: the data length in bytes
+ * @out: (output) the resulting SM3 message digest
+ *
+ * Context: Any context.
+ */
+void sm3(const u8 *data, size_t len, u8 out[at_least SM3_DIGEST_SIZE]);
+
+#endif /* _CRYPTO_SM3_H */
diff --git a/include/crypto/sm4.h b/include/crypto/sm4.h
new file mode 100644
index 000000000..9656a9a40
--- /dev/null
+++ b/include/crypto/sm4.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Common values for the SM4 algorithm
+ * Copyright (C) 2018 ARM Limited or its affiliates.
+ * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#ifndef _CRYPTO_SM4_H
+#define _CRYPTO_SM4_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define SM4_KEY_SIZE 16
+#define SM4_BLOCK_SIZE 16
+#define SM4_RKEY_WORDS 32
+
+struct sm4_ctx {
+ u32 rkey_enc[SM4_RKEY_WORDS];
+ u32 rkey_dec[SM4_RKEY_WORDS];
+};
+
+extern const u32 crypto_sm4_fk[];
+extern const u32 crypto_sm4_ck[];
+extern const u8 crypto_sm4_sbox[];
+
+/**
+ * sm4_expandkey - Expands the SM4 key as described in GB/T 32907-2016
+ * @ctx: The location where the computed key will be stored.
+ * @in_key: The supplied key.
+ * @key_len: The length of the supplied key.
+ *
+ * Returns 0 on success. The function fails only if an invalid key size (or
+ * pointer) is supplied.
+ */
+int sm4_expandkey(struct sm4_ctx *ctx, const u8 *in_key,
+ unsigned int key_len);
+
+/**
+ * sm4_crypt_block - Encrypt or decrypt a single SM4 block
+ * @rk: The rkey_enc for encrypt or rkey_dec for decrypt
+ * @out: Buffer to store output data
+ * @in: Buffer containing the input data
+ */
+void sm4_crypt_block(const u32 *rk, u8 *out, const u8 *in);
+
+#endif
diff --git a/include/crypto/streebog.h b/include/crypto/streebog.h
new file mode 100644
index 000000000..570f720a1
--- /dev/null
+++ b/include/crypto/streebog.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause */
+/*
+ * Copyright (c) 2013 Alexey Degtyarev <alexey@renatasystems.org>
+ * Copyright (c) 2018 Vitaly Chikunov <vt@altlinux.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#ifndef _CRYPTO_STREEBOG_H_
+#define _CRYPTO_STREEBOG_H_
+
+#include <linux/types.h>
+
+#define STREEBOG256_DIGEST_SIZE 32
+#define STREEBOG512_DIGEST_SIZE 64
+#define STREEBOG_BLOCK_SIZE 64
+
+struct streebog_uint512 {
+ __le64 qword[8];
+};
+
+struct streebog_state {
+ struct streebog_uint512 hash;
+ struct streebog_uint512 h;
+ struct streebog_uint512 N;
+ struct streebog_uint512 Sigma;
+};
+
+#endif /* !_CRYPTO_STREEBOG_H_ */
diff --git a/include/crypto/twofish.h b/include/crypto/twofish.h
new file mode 100644
index 000000000..f6b307a58
--- /dev/null
+++ b/include/crypto/twofish.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_TWOFISH_H
+#define _CRYPTO_TWOFISH_H
+
+#include <linux/types.h>
+
+#define TF_MIN_KEY_SIZE 16
+#define TF_MAX_KEY_SIZE 32
+#define TF_BLOCK_SIZE 16
+
+struct crypto_tfm;
+
+/* Structure for an expanded Twofish key. s contains the key-dependent
+ * S-boxes composed with the MDS matrix; w contains the eight "whitening"
+ * subkeys, K[0] through K[7]. k holds the remaining, "round" subkeys. Note
+ * that k[i] corresponds to what the Twofish paper calls K[i+8]. */
+struct twofish_ctx {
+ u32 s[4][256], w[8], k[32];
+};
+
+int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
+ unsigned int key_len);
+int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len);
+
+#endif
diff --git a/include/crypto/utils.h b/include/crypto/utils.h
new file mode 100644
index 000000000..2594f4577
--- /dev/null
+++ b/include/crypto/utils.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cryptographic utilities
+ *
+ * Copyright (c) 2023 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_UTILS_H
+#define _CRYPTO_UTILS_H
+
+#include <linux/unaligned.h>
+#include <linux/compiler_attributes.h>
+#include <linux/types.h>
+
+void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int size);
+
+static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size)
+{
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
+ __builtin_constant_p(size) &&
+ (size % sizeof(unsigned long)) == 0) {
+ unsigned long *d = (unsigned long *)dst;
+ unsigned long *s = (unsigned long *)src;
+ unsigned long l;
+
+ while (size > 0) {
+ l = get_unaligned(d) ^ get_unaligned(s++);
+ put_unaligned(l, d++);
+ size -= sizeof(unsigned long);
+ }
+ } else {
+ __crypto_xor(dst, dst, src, size);
+ }
+}
+
+static inline void crypto_xor_cpy(u8 *dst, const u8 *src1, const u8 *src2,
+ unsigned int size)
+{
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
+ __builtin_constant_p(size) &&
+ (size % sizeof(unsigned long)) == 0) {
+ unsigned long *d = (unsigned long *)dst;
+ unsigned long *s1 = (unsigned long *)src1;
+ unsigned long *s2 = (unsigned long *)src2;
+ unsigned long l;
+
+ while (size > 0) {
+ l = get_unaligned(s1++) ^ get_unaligned(s2++);
+ put_unaligned(l, d++);
+ size -= sizeof(unsigned long);
+ }
+ } else {
+ __crypto_xor(dst, src1, src2, size);
+ }
+}
+
+noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
+
+/**
+ * crypto_memneq - Compare two areas of memory without leaking
+ * timing information.
+ *
+ * @a: One area of memory
+ * @b: Another area of memory
+ * @size: The size of the area.
+ *
+ * Returns 0 when data is equal, 1 otherwise.
+ */
+static inline int crypto_memneq(const void *a, const void *b, size_t size)
+{
+ return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
+}
+
+#endif /* _CRYPTO_UTILS_H */
diff --git a/include/crypto/xts.h b/include/crypto/xts.h
new file mode 100644
index 000000000..16aef89f0
--- /dev/null
+++ b/include/crypto/xts.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_XTS_H
+#define _CRYPTO_XTS_H
+
+#include <crypto/b128ops.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/fips.h>
+
+#define XTS_BLOCK_SIZE 16
+#define XTS_FORBID_WEAK_KEYS (1 << 0)
+
+static inline int __xts_verify_key(const u8 *key, size_t keylen, int flags)
+{
+ /*
+ * key consists of keys of equal size concatenated, therefore
+ * the length must be even.
+ */
+ if (keylen % 2)
+ return -EINVAL;
+
+ /*
+ * In FIPS mode only a combined key length of either 256 or
+ * 512 bits is allowed, c.f. FIPS 140-3 IG C.I.
+ */
+ if (fips_enabled && keylen != 32 && keylen != 64)
+ return -EINVAL;
+
+ /*
+ * Ensure that the AES and tweak key are not identical when
+ * in FIPS mode or the FORBID_WEAK_KEYS flag is set.
+ */
+ if ((fips_enabled || (flags & XTS_FORBID_WEAK_KEYS)) &&
+ !crypto_memneq(key, key + (keylen / 2), keylen / 2))
+ return -EINVAL;
+
+ return 0;
+}
+
+static inline int xts_verify_key(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ int flags = (crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_FORBID_WEAK_KEYS) ?
+ XTS_FORBID_WEAK_KEYS :
+ 0;
+
+ return __xts_verify_key(key, keylen, flags);
+}
+
+#endif /* _CRYPTO_XTS_H */