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94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
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/*
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* libEtPan! -- a mail stuff library
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*
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* Copyright (C) 2001, 2005 - DINH Viet Hoa
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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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* 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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* 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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* 3. Neither the name of the libEtPan! project nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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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/* hmac-md5.h -- HMAC_MD5 functions
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*/
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/*
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* $Id: hmac-md5.h,v 1.1.1.1 2005/03/18 20:17:28 zautrix Exp $
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*/
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#ifndef HMAC_MD5_H
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#define HMAC_MD5_H 1
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namespace md5
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{
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#define HMAC_MD5_SIZE 16
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/* intermediate MD5 context */
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typedef struct HMAC_MD5_CTX_s {
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MD5_CTX ictx, octx;
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} HMAC_MD5_CTX;
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/* intermediate HMAC state
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* values stored in network byte order (Big Endian)
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*/
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typedef struct HMAC_MD5_STATE_s {
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UINT4 istate[4];
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UINT4 ostate[4];
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} HMAC_MD5_STATE;
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/* One step hmac computation
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*
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* digest may be same as text or key
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*/
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void hmac_md5(const unsigned char *text, int text_len,
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const unsigned char *key, int key_len,
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unsigned char digest[HMAC_MD5_SIZE]);
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/* create context from key
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*/
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void hmac_md5_init(HMAC_MD5_CTX *hmac,
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const unsigned char *key, int key_len);
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/* precalculate intermediate state from key
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*/
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void hmac_md5_precalc(HMAC_MD5_STATE *hmac,
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const unsigned char *key, int key_len);
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/* initialize context from intermediate state
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*/
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void hmac_md5_import(HMAC_MD5_CTX *hmac, HMAC_MD5_STATE *state);
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#define hmac_md5_update(hmac, text, text_len) MD5Update(&(hmac)->ictx, (text), (text_len))
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/* finish hmac from intermediate result. Intermediate result is zeroed.
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*/
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void hmac_md5_final(unsigned char digest[HMAC_MD5_SIZE],
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HMAC_MD5_CTX *hmac);
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}
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#endif /* HMAC_MD5_H */
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