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/*
* Copyright (C) 2008-2017 TrinityCore <http://www.trinitycore.org/>
*
* This program 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.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*/
#include "SHA256.h"
#include "BigNumber.h"
#include <cstring>
#include <stdarg.h>
SHA256Hash::SHA256Hash()
{
SHA256_Init(&mC);
memset(mDigest, 0, SHA256_DIGEST_LENGTH * sizeof(uint8));
}
SHA256Hash::~SHA256Hash()
{
SHA256_Init(&mC);
}
void SHA256Hash::UpdateData(const uint8 *dta, int len)
{
SHA256_Update(&mC, dta, len);
}
void SHA256Hash::UpdateData(const std::string &str)
{
UpdateData((uint8 const*)str.c_str(), str.length());
}
void SHA256Hash::UpdateBigNumbers(BigNumber* bn0, ...)
{
va_list v;
BigNumber* bn;
va_start(v, bn0);
bn = bn0;
while (bn)
{
UpdateData(bn->AsByteArray().get(), bn->GetNumBytes());
bn = va_arg(v, BigNumber*);
}
va_end(v);
}
void SHA256Hash::Initialize()
{
SHA256_Init(&mC);
}
void SHA256Hash::Finalize(void)
{
SHA256_Final(mDigest, &mC);
}
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