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GmSSL/include/gmssl/sha2.h
2021-08-04 22:07:50 +08:00

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4.3 KiB
C
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/*
* Copyright (c) 2014 - 2021 The GmSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the GmSSL Project.
* (http://gmssl.org/)"
*
* 4. The name "GmSSL Project" must not be used to endorse or promote
* products derived from this software without prior written
* permission. For written permission, please contact
* guanzhi1980@gmail.com.
*
* 5. Products derived from this software may not be called "GmSSL"
* nor may "GmSSL" appear in their names without prior written
* permission of the GmSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the GmSSL Project
* (http://gmssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 GmSSL PROJECT OR
* ITS 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 GMSSL_SHA2_H
#define GMSSL_SHA2_H
#include <string.h>
#include <stdint.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#define SHA2_IS_BIG_ENDIAN 1
#define SHA224_DIGEST_SIZE 28
#define SHA224_BLOCK_SIZE 64
#define SHA224_STATE_WORDS 8
typedef struct {
uint32_t state[SHA224_STATE_WORDS];
uint64_t nblocks;
unsigned char block[SHA224_BLOCK_SIZE];
int num;
} SHA224_CTX;
void sha224_init(SHA224_CTX *ctx);
void sha224_update(SHA224_CTX *ctx, const unsigned char* data, size_t datalen);
void sha224_finish(SHA224_CTX *ctx, unsigned char dgst[SHA224_DIGEST_SIZE]);
void sha224_digest(const unsigned char *data, size_t datalen,
unsigned char dgst[SHA224_DIGEST_SIZE]);
#define SHA256_DIGEST_SIZE 32
#define SHA256_BLOCK_SIZE 64
#define SHA256_STATE_WORDS 8
typedef struct {
uint32_t state[8];
uint64_t nblocks;
unsigned char block[64];
int num;
} SHA256_CTX;
void sha256_init(SHA256_CTX *ctx);
void sha256_update(SHA256_CTX *ctx, const unsigned char* data, size_t datalen);
void sha256_finish(SHA256_CTX *ctx, unsigned char dgst[SHA256_DIGEST_SIZE]);
void sha256_digest(const unsigned char *data, size_t datalen,
unsigned char dgst[SHA256_DIGEST_SIZE]);
#define SHA384_DIGEST_SIZE 48
#define SHA384_BLOCK_SIZE 128
#define SHA384_STATE_WORDS 8
typedef struct {
uint64_t state[8];
uint64_t nblocks;
unsigned char block[128];
int num;
} SHA384_CTX;
void sha384_init(SHA384_CTX *ctx);
void sha384_update(SHA384_CTX *ctx, const unsigned char* data, size_t datalen);
void sha384_finish(SHA384_CTX *ctx, unsigned char dgst[SHA384_DIGEST_SIZE]);
void sha384_digest(const unsigned char *data, size_t datalen,
unsigned char dgst[SHA384_DIGEST_SIZE]);
#define SHA512_DIGEST_SIZE 64
#define SHA512_BLOCK_SIZE 128
#define SHA512_STATE_WORDS 8
typedef struct {
uint64_t state[8];
uint64_t nblocks;
unsigned char block[128];
int num;
} SHA512_CTX;
void sha512_init(SHA512_CTX *ctx);
void sha512_update(SHA512_CTX *ctx, const unsigned char* data, size_t datalen);
void sha512_finish(SHA512_CTX *ctx, unsigned char dgst[SHA512_DIGEST_SIZE]);
void sha512_digest(const unsigned char *data, size_t datalen,
unsigned char dgst[SHA512_DIGEST_SIZE]);
#ifdef __cplusplus
}
#endif
#endif