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fb9a8ff879
git-svn-id: http://encfs.googlecode.com/svn/trunk@92 db9cf616-1c43-0410-9cb8-a902689de0d6
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/*****************************************************************************
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* Author: Valient Gough <vgough@pobox.com>
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*
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*****************************************************************************
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* Copyright (c) 2004, Valient Gough
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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 Lesser General Public License as published by the
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* Free Software Foundation, either version 3 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 Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _BlockNameIO_incl_
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#define _BlockNameIO_incl_
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#include "cipher/CipherKey.h"
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#include "fs/NameIO.h"
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#include <memory>
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class Cipher;
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/*
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Implement NameIO interface for filename encoding. Uses cipher in block
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mode to encode filenames. The filenames are padded to be a multiple of the
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cipher block size.
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*/
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class BlockNameIO : public NameIO
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{
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public:
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static Interface CurrentInterface(bool caseSensitive = false);
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BlockNameIO( const Interface &iface,
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const shared_ptr<Cipher> &cipher,
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const CipherKey &key,
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bool caseSensitiveEncoding = false );
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virtual ~BlockNameIO();
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virtual Interface interface() const;
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virtual int maxEncodedNameLen( int plaintextNameLen ) const;
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virtual int maxDecodedNameLen( int encodedNameLen ) const;
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// hack to help with static builds
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static bool Enabled();
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protected:
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virtual int encodeName( const char *plaintextName, int length,
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uint64_t *iv, char *encodedName ) const;
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virtual int decodeName( const char *encodedName, int length,
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uint64_t *iv, char *plaintextName ) const;
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private:
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int _interface;
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int _bs;
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shared_ptr<Cipher> _cipher;
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CipherKey _key;
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bool _caseSensitive;
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};
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#endif
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