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60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/*
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* This file is part of the CMaNGOS Project. See AUTHORS file for Copyright information
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "Auth/HMACSHA1.h"
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#include "BigNumber.h"
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HMACSHA1::HMACSHA1(uint32 len, uint8* seed)
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{
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HMAC_CTX_init(&m_ctx);
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HMAC_Init_ex(&m_ctx, seed, len, EVP_sha1(), NULL);
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}
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HMACSHA1::~HMACSHA1()
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{
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HMAC_CTX_cleanup(&m_ctx);
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}
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void HMACSHA1::UpdateBigNumber(BigNumber* bn)
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{
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UpdateData(bn->AsByteArray(), bn->GetNumBytes());
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}
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void HMACSHA1::UpdateData(const uint8* data, int length)
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{
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HMAC_Update(&m_ctx, data, length);
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}
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void HMACSHA1::UpdateData(const std::string& str)
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{
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UpdateData((uint8 const*)str.c_str(), str.length());
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}
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void HMACSHA1::Finalize()
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{
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uint32 length = 0;
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HMAC_Final(&m_ctx, (uint8*)m_digest, &length);
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MANGOS_ASSERT(length == SHA_DIGEST_LENGTH);
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}
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uint8* HMACSHA1::ComputeHash(BigNumber* bn)
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{
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HMAC_Update(&m_ctx, bn->AsByteArray(), bn->GetNumBytes());
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Finalize();
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return (uint8*)m_digest;
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}
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