/*
 * Copyright (C) 2017, University of the Basque Country (UPV/EHU)
 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://doubango.org>
 *
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DOUBANGO is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with DOUBANGO.
 *
 */
 
 /**@file tsk_md5.h
  * @brief Implements Message-Digest algorithm 5 (RFC 1321).
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #ifndef _TINYSAK_MD5_H_
 #define _TINYSAK_MD5_H_
 
 #include "tinysak_config.h"
 
 TSK_BEGIN_DECLS
 
 /**@ingroup tsk_md5_group
 * @def TSK_MD5_DIGEST_SIZE
 */
 /**@ingroup tsk_md5_group
 * @def TSK_MD5_BLOCK_SIZE
 */
 /**@ingroup tsk_md5_group
 * @def TSK_MD5_EMPTY
 */
 /**@ingroup tsk_md5_group
 * @def TSK_MD5_STRING_SIZE
 */
 /**@ingroup tsk_md5_group
 * @def tsk_md5string_t
 */
 /**@ingroup tsk_md5_group
 * @def tsk_md5digest_t
 */
 /**@ingroup TSK_MD5_DIGEST_CALC
 * @def tsk_md5digest_t
 */
 
 
 #define TSK_MD5_DIGEST_SIZE		16
 #define TSK_MD5_BLOCK_SIZE		64
 
 #define TSK_MD5_EMPTY			"d41d8cd98f00b204e9800998ecf8427e"
 
 #define TSK_MD5_STRING_SIZE		(TSK_MD5_DIGEST_SIZE*2)
 typedef char tsk_md5string_t[TSK_MD5_STRING_SIZE+1]; /**< Hexadecimal MD5 string. */
 typedef uint8_t tsk_md5digest_t[TSK_MD5_DIGEST_SIZE]; /**< MD5 digest bytes. */
 
 #define TSK_MD5_DIGEST_CALC(input, input_size, digest)		\
 	{														\
 		tsk_md5context_t ctx;								\
 		tsk_md5init(&ctx);									\
 		tsk_md5update(&ctx, (const uint8_t*)(input), (input_size));			\
 		tsk_md5final((digest), &ctx);						\
 	}
 
 typedef struct tsk_md5context_s
 {
 	uint32_t buf[4];
 	uint32_t bytes[2];
 	uint32_t in[16];
 }
 tsk_md5context_t;
 
 TINYSAK_API void tsk_md5init(tsk_md5context_t *context);
 TINYSAK_API void tsk_md5update(tsk_md5context_t *context, uint8_t const *buf, tsk_size_t len);
 TINYSAK_API void tsk_md5final(tsk_md5digest_t digest, tsk_md5context_t *context);
 TINYSAK_API void tsk_md5transform(uint32_t buf[4], uint32_t const in[TSK_MD5_DIGEST_SIZE]);
 TINYSAK_API int tsk_md5compute(const char* input, tsk_size_t size, tsk_md5string_t *result);
 
 TSK_END_DECLS
 
 #endif /* _TINYSAK_MD5_H_ */