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1 /*
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2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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3 *
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4 * Licensed under the OpenSSL license (the "License"). You may not use
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5 * this file except in compliance with the License. You can obtain a copy
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6 * in the file LICENSE in the source distribution or at
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7 * https://www.openssl.org/source/license.html
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8 */
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9
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10 #ifndef HEADER_HMAC_H
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11 # define HEADER_HMAC_H
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12
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13 # include <openssl/opensslconf.h>
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14
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15 # include <openssl/evp.h>
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16
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17 # if OPENSSL_API_COMPAT < 0x10200000L
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18 # define HMAC_MAX_MD_CBLOCK 128 /* Deprecated */
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19 # endif
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20
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21 #ifdef __cplusplus
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22 extern "C" {
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23 #endif
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24
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25 size_t HMAC_size(const HMAC_CTX *e);
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26 HMAC_CTX *HMAC_CTX_new(void);
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27 int HMAC_CTX_reset(HMAC_CTX *ctx);
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28 void HMAC_CTX_free(HMAC_CTX *ctx);
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29
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30 DEPRECATEDIN_1_1_0(__owur int HMAC_Init(HMAC_CTX *ctx, const void *key, int len,
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31 const EVP_MD *md))
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32
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33 /*__owur*/ int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
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34 const EVP_MD *md, ENGINE *impl);
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35 /*__owur*/ int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data,
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36 size_t len);
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37 /*__owur*/ int HMAC_Final(HMAC_CTX *ctx, unsigned char *md,
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38 unsigned int *len);
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39 unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
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40 const unsigned char *d, size_t n, unsigned char *md,
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41 unsigned int *md_len);
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42 __owur int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx);
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43
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44 void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags);
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45 const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx);
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46
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47 #ifdef __cplusplus
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48 }
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49 #endif
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50
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51 #endif
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