/*
 * This file is part of the CMaNGOS Project. See AUTHORS file for Copyright information
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "Auth/Hmac.h"
#include "BigNumber.h"

HmacHash::HmacHash(const uint8* data, int length)
{
 HMAC_CTX_init(&m_ctx);
 HMAC_Init_ex(&m_ctx, data, length, EVP_sha1(), NULL);
}

HmacHash::~HmacHash()
{
 HMAC_CTX_cleanup(&m_ctx);
}

void HmacHash::UpdateBigNumber(BigNumber* bn)
{
 UpdateData(bn->AsByteArray());
}

void HmacHash::UpdateData(const std::vector<uint8>& data)
{
 HMAC_Update(&m_ctx, data.data(), data.size());
}

void HmacHash::UpdateData(const uint8* data, int length)
{
 HMAC_Update(&m_ctx, data, length);
}

void HmacHash::Finalize()
{
 uint32 length = 0;
 HMAC_Final(&m_ctx, m_digest, &length);
 // MANGOS_ASSERT(length == SHA_DIGEST_LENGTH);
}