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Init commit of gmssl-v3

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Zhi Guan
2021-07-13 19:21:43 +08:00
commit 0af5775be3
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include/gmssl/hmac.h Normal file
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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_HMAC_H
#define GMSSL_HMAC_H
#include <string.h>
#include <gmssl/digest.h>
#ifdef __cplusplus
extern "C" {
#endif
#define HMAC_MAX_SIZE (DIGEST_MAX_SIZE)
typedef struct hmac_ctx_st {
const DIGEST *digest;
DIGEST_CTX digest_ctx;
DIGEST_CTX i_ctx;
DIGEST_CTX o_ctx;
} HMAC_CTX;
size_t hmac_size(const HMAC_CTX *ctx);
int hmac_init(HMAC_CTX *ctx, const DIGEST *digest, const unsigned char *key, size_t keylen);
int hmac_update(HMAC_CTX *ctx, const unsigned char *data, size_t datalen);
int hmac_finish(HMAC_CTX *ctx, unsigned char *mac, size_t *maclen);
int hmac_reset(HMAC_CTX *ctx);
int hmac(const DIGEST *md, const unsigned char *key, size_t keylen,
const unsigned char *data, size_t dlen,
unsigned char *mac, size_t *maclen);
#ifdef __cplusplus
}
#endif
#endif