82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/*
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* Copyright (C) 2008-2018 TrinityCore <https://www.trinitycore.org/>
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "HmacHash.h"
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#include "BigNumber.h"
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#include "Errors.h"
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#include <cstring>
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#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10100000L
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HMAC_CTX* HMAC_CTX_new()
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{
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HMAC_CTX *ctx = new HMAC_CTX();
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HMAC_CTX_init(ctx);
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return ctx;
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}
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void HMAC_CTX_free(HMAC_CTX* ctx)
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{
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HMAC_CTX_cleanup(ctx);
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delete ctx;
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}
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#endif
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template<HashCreateFn HashCreator, uint32 DigestLength>
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HmacHash<HashCreator, DigestLength>::HmacHash(uint32 len, uint8 const* seed) : _ctx(HMAC_CTX_new())
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{
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HMAC_Init_ex(_ctx, seed, len, HashCreator(), nullptr);
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memset(_digest, 0, DigestLength);
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}
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template<HashCreateFn HashCreator, uint32 DigestLength>
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HmacHash<HashCreator, DigestLength>::~HmacHash()
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{
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HMAC_CTX_free(_ctx);
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}
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template<HashCreateFn HashCreator, uint32 DigestLength>
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void HmacHash<HashCreator, DigestLength>::UpdateData(std::string const& str)
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{
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HMAC_Update(_ctx, reinterpret_cast<uint8 const*>(str.c_str()), str.length());
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}
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template<HashCreateFn HashCreator, uint32 DigestLength>
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void HmacHash<HashCreator, DigestLength>::UpdateData(uint8 const* data, size_t len)
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{
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HMAC_Update(_ctx, data, len);
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}
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template<HashCreateFn HashCreator, uint32 DigestLength>
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void HmacHash<HashCreator, DigestLength>::Finalize()
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{
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uint32 length = 0;
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HMAC_Final(_ctx, _digest, &length);
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ASSERT(length == DigestLength);
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}
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template<HashCreateFn HashCreator, uint32 DigestLength>
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uint8* HmacHash<HashCreator, DigestLength>::ComputeHash(BigNumber* bn)
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{
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HMAC_Update(_ctx, bn->AsByteArray().get(), bn->GetNumBytes());
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Finalize();
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return _digest;
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}
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template class TC_COMMON_API HmacHash<EVP_sha1, SHA_DIGEST_LENGTH>;
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template class TC_COMMON_API HmacHash<EVP_sha256, SHA256_DIGEST_LENGTH>;
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