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| author | Sang-Heon Jeon <ekffu200098@gmail.com> | 2026-08-24 01:18:14 +0900 |
|---|---|---|
| committer | Julia Lawall <Julia.Lawall@inria.fr> | 2026-08-23 22:12:11 +0200 |
| commit | 2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch) | |
| tree | dcc4da1d99f17541c5590ac63c77da4bf372a4ab /include/crypto/sm3.h | |
| download | linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip | |
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by
commit 7968778914e5
("PCI: Remove the deprecated "pci-dma-compat.h" API")
- kmem_alloc() was removed by commit f078d4ea8276
("xfs: convert kmem_alloc() to kmalloc()")
- kmem_zalloc() was removed by commit 10634530f7ba
("xfs: convert kmem_zalloc() to kzalloc()")
- kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit
bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers")
So drop them from the rules.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'include/crypto/sm3.h')
| -rw-r--r-- | include/crypto/sm3.h | 87 |
1 files changed, 87 insertions, 0 deletions
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 */ |
