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// ****************************************************************************
// Project: GUYMAGER
// ****************************************************************************
// Programmer: Guy Voncken
// Police Grand-Ducale
// Service de Police Judiciaire
// Section Nouvelles Technologies
// ****************************************************************************
// Module: Hash wrapper functions for uniform hash interface
// ****************************************************************************
// Copyright 2008, 2009, 2010, 2011, 2012 Guy Voncken
//
// This file is part of guymager.
//
// guymager 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.
//
// guymager 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 guymager. If not, see <http://www.gnu.org/licenses/>.
#include "common.h"
#include <QtCore>
#include "hash.h"
#ifdef USE_MD5_FROM_OPENSSL
#include <openssl/md5.h>
#endif
#ifdef USE_SHA256_FROM_OPENSSL
#include <openssl/sha.h>
#endif
// ------------------------------------
// MD5 Functions
// ------------------------------------
APIRET HashMD5Clear (t_pHashContextMD5 pContext)
{
memset (pContext, 0, sizeof(t_HashContextMD5));
return NO_ERROR;
}
APIRET HashMD5Init (t_pHashContextMD5 pContext)
{
#ifdef USE_MD5_FROM_OPENSSL
(void) MD5_Init (pContext); // strange, man page says that MD5_Init returns void, but header file says it's int
#else
MD5Init (pContext);
#endif
return NO_ERROR;
}
APIRET HashMD5Append (t_pHashContextMD5 pContext, const void *pData, int DataLen)
{
#ifdef USE_MD5_FROM_OPENSSL
(void) MD5_Update (pContext, pData, (unsigned long) DataLen); // Same remark as for MD5_Init
#else
MD5Append (pContext, pData, DataLen);
#endif
return NO_ERROR;
}
APIRET HashMD5Digest (t_pHashContextMD5 pContext, t_pHashMD5Digest pDigest)
{
#ifdef USE_MD5_FROM_OPENSSL
(void) MD5_Final (&pDigest->Buff[0], pContext); // Same remark as for MD5_Init
#else
MD5Finish (pContext, &pDigest->Buff[0]);
#endif
return NO_ERROR;
}
APIRET HashMD5DigestStr (t_pHashMD5Digest pDigest, QString &Str)
{
Str.clear();
for (int i=0; i<HASH_MD5_DIGEST_LENGTH; i++)
Str += QString ("%1") .arg ((int)(pDigest->Buff[i]), 2, 16, QChar('0'));
return NO_ERROR;
}
bool HashMD5Match (t_pHashMD5Digest pDigest1, t_pHashMD5Digest pDigest2)
{
return (memcmp (pDigest1, pDigest2, sizeof(t_HashMD5Digest)) == 0);
}
// ------------------------------------
// SHA256 Functions
// ------------------------------------
APIRET HashSHA256Clear (t_pHashContextSHA256 pContext)
{
memset (pContext, 0, sizeof(t_HashContextSHA256));
return NO_ERROR;
}
APIRET HashSHA256Init (t_pHashContextSHA256 pContext)
{
#ifdef USE_SHA256_FROM_OPENSSL
(void) SHA256_Init (pContext);
#else
SHA256Init (pContext);
#endif
return NO_ERROR;
}
APIRET HashSHA256Append (t_pHashContextSHA256 pContext, void *pData, int DataLen)
{
#ifdef USE_SHA256_FROM_OPENSSL
(void) SHA256_Update (pContext, pData, (unsigned long) DataLen);
#else
SHA256Append (pContext, (unsigned char *)pData, DataLen);
#endif
return NO_ERROR;
}
APIRET HashSHA256Digest (t_pHashContextSHA256 pContext, t_pHashSHA256Digest pDigest)
{
#ifdef USE_SHA256_FROM_OPENSSL
(void) SHA256_Final (&pDigest->Buff[0], pContext);
#else
SHA256Finish (pContext, (unsigned char *)pDigest);
#endif
return NO_ERROR;
}
APIRET HashSHA256DigestStr (t_pHashSHA256Digest pDigest, QString &Str)
{
Str.clear();
for (int i=0; i<HASH_SHA256_DIGEST_LENGTH; i++)
Str += QString ("%1") .arg ((int)(pDigest->Buff[i]), 2, 16, QChar('0'));
return NO_ERROR;
}
bool HashSHA256Match (t_pHashSHA256Digest pDigest1, t_pHashSHA256Digest pDigest2)
{
return (memcmp (pDigest1, pDigest2, sizeof(t_HashMD5Digest)) == 0);
}
// ------------------------------------
// Module initialisation
// ------------------------------------
APIRET HashInit (void)
{
CHK (TOOL_ERROR_REGISTER_CODE (ERROR_HASH_))
return NO_ERROR;
}
APIRET HashDeInit (void)
{
return NO_ERROR;
}
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