![Anders Broman](/assets/img/avatar_default.png)
Split md5_hmac for incremental use https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7680 svn path=/trunk/; revision=44710
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/* $Id$ */
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/*
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* Copyright (C) 2003-2005 Benny Prijono <benny@prijono.org>
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* Copyright (C) 2012 C Elston, Katalix Systems Ltd <celston@katalix.com>
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*
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* MD5 code from pjlib-util http://www.pjsip.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* 2012-08-21 - C Elston - Split md5_hmac function to allow incremental usage.
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*
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*/
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#ifndef __MD5_H__ /**@todo Should this be _CRYPT_MD5_H__ ?*/
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#define __MD5_H__
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/**
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* @file md5.h
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* @brief MD5 Functions
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*/
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/* Don't define this group for Wireshark
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* @defgroup PJLIB_UTIL_MD5 MD5 Functions
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* @ingroup PJLIB_UTIL
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* @{
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*/
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#define md5_byte_t guint8
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/** MD5 context. */
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typedef struct md5_state_s
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{
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guint32 buf[4];
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guint32 bits[2];
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guint32 in[16];
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} md5_state_t;
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/** Initialize the algorithm.
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* @param pms MD5 context.
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*/
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void md5_init(md5_state_t *pms);
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/** Append a string to the message.
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* @param pms MD5 context.
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* @param data Data.
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* @param nbytes Length of data.
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*/
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void md5_append( md5_state_t *pms,
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const guint8 *data, size_t nbytes);
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/** Finish the message and return the digest.
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* @param pms MD5 context.
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* @param digest 16 byte digest.
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*/
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void md5_finish(md5_state_t *pms, guint8 digest[16]);
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typedef struct md5_hmac_state_s
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{
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md5_state_t ctx;
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guint8 k_opad[65];
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} md5_hmac_state_t;
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void md5_hmac_init(md5_hmac_state_t *hctx,
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const guint8* key, size_t key_len);
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void md5_hmac_append(md5_hmac_state_t *hctx,
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const guint8* text, size_t text_len);
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void md5_hmac_finish(md5_hmac_state_t *hctx, guint8 digest[16]);
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void md5_hmac(const guint8* text, size_t text_len, const guint8* key,
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size_t key_len, guint8 digest[16]);
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/*
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* @}
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*/
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#endif /* _CRYPT_MD5_H__ */
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