/* SPDX-License-Identifier: GPL-2.0-only */ /* * Common values for SM3 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_STATE_SIZE 40 #define SM3_T1 0x79CC4519 #define SM3_T2 0x7A879D8A #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 extern const u8 sm3_zero_message_hash[SM3_DIGEST_SIZE]; struct sm3_state { u32 state[SM3_DIGEST_SIZE / 4]; u64 count; u8 buffer[SM3_BLOCK_SIZE]; }; /* * Stand-alone implementation of the SM3 algorithm. It is designed to * have as little dependencies as possible so it can be used in the * kexec_file purgatory. In other cases you should generally use the * hash APIs from include/crypto/hash.h. Especially when hashing large * amounts of data as those APIs may be hw-accelerated. * * For details see lib/crypto/sm3.c */ static inline void sm3_init(struct sm3_state *sctx) { sctx->state[0] = SM3_IVA; sctx->state[1] = SM3_IVB; sctx->state[2] = SM3_IVC; sctx->state[3] = SM3_IVD; sctx->state[4] = SM3_IVE; sctx->state[5] = SM3_IVF; sctx->state[6] = SM3_IVG; sctx->state[7] = SM3_IVH; sctx->count = 0; } void sm3_block_generic(struct sm3_state *sctx, u8 const *data, int blocks); #endif