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751d00c47e
- Replace SawTooth copyright header with MySQL's - Bug#19209 Test 'rpl_openssl' hangs on Windows - Spurious "2013 Connection to server lost" errors fixed yaSSL doesn't close socket anymore, that is left to the application
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
/*
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Copyright (C) 2000-2007 MySQL AB
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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; version 2 of the License.
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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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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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MA 02110-1301 USA.
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*/
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/* hash.hpp provides a base for digest types
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*/
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#ifndef TAO_CRYPT_HASH_HPP
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#define TAO_CRYPT_HASH_HPP
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#include "misc.hpp"
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namespace TaoCrypt {
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// HASH
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class HASH : public virtual_base {
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public:
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virtual ~HASH() {}
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virtual void Update(const byte*, word32) = 0;
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virtual void Final(byte*) = 0;
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virtual void Init() = 0;
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virtual word32 getBlockSize() const = 0;
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virtual word32 getDigestSize() const = 0;
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};
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// HASH with Transform
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class HASHwithTransform : public HASH {
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public:
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HASHwithTransform(word32 digSz, word32 buffSz);
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virtual ~HASHwithTransform() {}
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virtual ByteOrder getByteOrder() const = 0;
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virtual word32 getPadSize() const = 0;
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virtual void Update(const byte*, word32);
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virtual void Final(byte*);
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word32 GetBitCountLo() const { return loLen_ << 3; }
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word32 GetBitCountHi() const { return (loLen_ >> (8*sizeof(loLen_) - 3)) +
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(hiLen_ << 3); }
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enum { MaxDigestSz = 5, MaxBufferSz = 64 };
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protected:
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typedef word32 HashLengthType;
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word32 buffLen_; // in bytes
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HashLengthType loLen_; // length in bytes
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HashLengthType hiLen_; // length in bytes
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word32 digest_[MaxDigestSz];
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word32 buffer_[MaxBufferSz / sizeof(word32)];
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virtual void Transform() = 0;
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void AddLength(word32);
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};
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} // namespace
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#endif // TAO_CRYPT_HASH_HPP
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