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90 lines
2 KiB
C++
90 lines
2 KiB
C++
////////////////////////////////////////////////////////////////////////////////////////
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//
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// Nestopia - NES/Famicom emulator written in C++
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//
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// Copyright (C) 2003-2008 Martin Freij
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//
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// This file is part of Nestopia.
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//
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// Nestopia 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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// Nestopia 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 Nestopia; 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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////////////////////////////////////////////////////////////////////////////////////////
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#ifndef NST_SHA1_H
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#define NST_SHA1_H
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#ifdef NST_PRAGMA_ONCE
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#pragma once
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#endif
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namespace Nes
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{
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namespace Core
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{
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namespace Sha1
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{
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class Key;
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void NST_CALL Compute(Key&,const byte*,dword);
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class Key : public ImplicitBool<Key>
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{
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public:
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Key();
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enum
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{
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DIGEST_SIZE = 20
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};
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typedef const dword (&Digest)[5];
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void Clear();
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Digest GetDigest() const;
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bool operator == (const Key& key) const;
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private:
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friend void NST_CALL Compute(Key&,const byte*,dword);
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inline void Update() const;
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void Compute(const byte*,dword);
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void Finalize() const;
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qaword count;
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dword state[5];
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mutable ibool finalized;
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mutable dword final[5];
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byte buffer[64];
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public:
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bool operator != (const Key& key) const
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{
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return !(*this == key);
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}
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bool operator ! () const
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{
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return !count;
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}
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};
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}
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}
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}
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#endif
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