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86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/*
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* Copyright (c) 2014 - 2021 The GmSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the GmSSL Project.
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* (http://gmssl.org/)"
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*
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* 4. The name "GmSSL Project" must not be used to endorse or promote
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* products derived from this software without prior written
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* permission. For written permission, please contact
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* guanzhi1980@gmail.com.
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*
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* 5. Products derived from this software may not be called "GmSSL"
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* nor may "GmSSL" appear in their names without prior written
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* permission of the GmSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the GmSSL Project
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* (http://gmssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GMSSL_HMAC_H
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#define GMSSL_HMAC_H
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#include <string.h>
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#include <gmssl/digest.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define HMAC_MAX_SIZE (DIGEST_MAX_SIZE)
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typedef struct hmac_ctx_st {
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const DIGEST *digest;
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DIGEST_CTX digest_ctx;
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DIGEST_CTX i_ctx;
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DIGEST_CTX o_ctx;
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} HMAC_CTX;
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size_t hmac_size(const HMAC_CTX *ctx);
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int hmac_init(HMAC_CTX *ctx, const DIGEST *digest, const uint8_t *key, size_t keylen);
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int hmac_update(HMAC_CTX *ctx, const uint8_t *data, size_t datalen);
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int hmac_finish(HMAC_CTX *ctx, uint8_t *mac, size_t *maclen);
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int hmac(const DIGEST *md, const uint8_t *key, size_t keylen,
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const uint8_t *data, size_t dlen,
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uint8_t *mac, size_t *maclen);
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#ifdef __cplusplus
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}
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#endif
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#endif
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