From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- include/crypto/mldsa.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 include/crypto/mldsa.h (limited to 'include/crypto/mldsa.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 + +/* 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 */ -- cgit v1.3.1