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/* evp.h
*
* Copyright (C) 2011 Sawtooth Consulting Ltd.
*
* This file is part of CyaSSL.
*
* CyaSSL 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 2 of the License, or
* (at your option) any later version.
*
* CyaSSL 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/* evp.h defines mini evp openssl compatibility layer
*
*/
#ifndef CYASSL_EVP_H_
#define CYASSL_EVP_H_
#ifdef YASSL_PREFIX
#include "prefix_evp.h"
#endif
#include "md5.h"
#include "sha.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef char EVP_MD;
typedef char EVP_CIPHER;
const EVP_MD* EVP_md5(void);
const EVP_MD* EVP_sha1(void);
typedef union {
MD5_CTX md5;
SHA_CTX sha;
} Hasher;
typedef struct EVP_MD_CTX {
unsigned char macType; /* md5 or sha for now */
Hasher hash;
} EVP_MD_CTX;
void EVP_MD_CTX_init(EVP_MD_CTX* ctx);
int EVP_MD_CTX_cleanup(EVP_MD_CTX* ctx);
int EVP_DigestInit(EVP_MD_CTX* ctx, const EVP_MD* type);
int EVP_DigestUpdate(EVP_MD_CTX* ctx, const void* data, size_t sz);
int EVP_DigestFinal(EVP_MD_CTX* ctx, unsigned char* md, unsigned int* s);
int EVP_DigestFinal_ex(EVP_MD_CTX* ctx, unsigned char* md, unsigned int* s);
int EVP_BytesToKey(const EVP_CIPHER*, const EVP_MD*, const unsigned char*,
const unsigned char*, int, int, unsigned char*, unsigned char*);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* CYASSL_EVP_H_ */
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