c1eb9828f4
Add a pair of functions which can be used to allocate and free an HMAC_CTX structure on the heap. This means that the caller doesn't need to know the size of the underlying structure.
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/*
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* Copyright (c) 2005 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* 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 the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $Id$ */
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#ifndef HEIM_HMAC_H
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#define HEIM_HMAC_H 1
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#include <hcrypto/evp.h>
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/* symbol renaming */
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#define HMAC_CTX_new hc_HMAC_CTX_new
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#define HMAC_CTX_free hc_HMAC_CTX_free
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#define HMAC_CTX_init hc_HMAC_CTX_init
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#define HMAC_CTX_cleanup hc_HMAC_CTX_cleanup
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#define HMAC_size hc_HMAC_size
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#define HMAC_Init_ex hc_HMAC_Init_ex
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#define HMAC_Update hc_HMAC_Update
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#define HMAC_Final hc_HMAC_Final
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#define HMAC hc_HMAC
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/*
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*
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*/
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#define HMAC_MAX_MD_CBLOCK 64
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typedef struct hc_HMAC_CTX HMAC_CTX;
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struct hc_HMAC_CTX {
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const EVP_MD *md;
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ENGINE *engine;
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EVP_MD_CTX *ctx;
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size_t key_length;
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void *opad;
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void *ipad;
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void *buf;
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};
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void HMAC_CTX_init(HMAC_CTX *);
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void HMAC_CTX_cleanup(HMAC_CTX *ctx);
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HMAC_CTX *HMAC_CTX_new(void);
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void HMAC_CTX_free(HMAC_CTX *ctx);
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size_t HMAC_size(const HMAC_CTX *ctx);
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void HMAC_Init_ex(HMAC_CTX *, const void *, size_t,
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const EVP_MD *, ENGINE *);
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void HMAC_Update(HMAC_CTX *ctx, const void *data, size_t len);
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void HMAC_Final(HMAC_CTX *ctx, void *md, unsigned int *len);
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void * HMAC(const EVP_MD *evp_md, const void *key, size_t key_len,
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const void *data, size_t n, void *md, unsigned int *md_len);
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#endif /* HEIM_HMAC_H */
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