base34dec.h

研读AxCrypt对加解密的处理方法

#ifndef AXSIGLIB_BASE34DEC_H
#define AXSIGLIB_BASE34DEC_H
/*! \file
    \brief AxSigLib - Short Elliptic Curve Digital Signature Algorithm et. al.

    @(#) $Id$

    Decode Base34 strings. These are strings using A-N, P-Z, 1-9 as their digits,
    valued in that sequence, i.e. A is zero, 9 is thirty-two.

    Copyright (C) 2005 Svante Seleborg/Axon Data, All rights reserved.

    This program is free software; you can redistribute it and/or modify it under the terms
    of the GNU General Public License as published by the Free Software Foundation;
    either version 2 of the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
    without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    See the GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along with this program;
    if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
    Boston, MA 02111-1307 USA

    The author may be reached at mailto:[e-mail] and http://axcrypt.sourceforge.net
----
*/

#include "Base34.h"
#include "BaseMDec.h"

//! Decode base 34 data back to bytes
class CRYPTOPP_DLL Base34Decoder : public BaseM_Decoder {
public:
    Base34Decoder(int bits = 0, BufferedTransformation *attachment = NULL)
        : BaseM_Decoder(GetDefaultDecodingLookupArray(), 34, bits, attachment) {
        }

    void IsolatedInitialize(const NameValuePairs &parameters);

private:
    static const int *GetDefaultDecodingLookupArray();
};

#endif