Current File : //usr/lib/modules/6.8.0-45-generic/build/include/crypto/sm3.h
/* 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_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_update(struct sm3_state *sctx, const u8 *data, unsigned int len);
void sm3_final(struct sm3_state *sctx, u8 *out);
#endif
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