gmd5.h

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//
// Copyright (C) 2001-2013 Graeme Walker <graeme_walker@users.sourceforge.net>
// 
// 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 3 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, see <http://www.gnu.org/licenses/>.
// ===

#ifndef G_MD5_H
#define G_MD5_H

#include "gdef.h"
#include "gexception.h"
#include <string>

namespace G
{
        class Md5 ;
}

class G::Md5 
{
public:
        G_EXCEPTION( InvalidMaskedKey , "invalid md5 key" ) ;
        G_EXCEPTION( Error , "internal md5 error" ) ;
        struct Masked  
                {} ;

        static std::string digest( const std::string & input ) ;

        static std::string digest( const std::string & input_1 , const std::string & input_2 ) ;

        static std::string printable( const std::string & input ) ;

        static std::string hmac( const std::string & key , const std::string & input ) ;

        static std::string hmac( const std::string & masked_key , const std::string & input , Masked ) ;

        static std::string mask( const std::string & key ) ;

private:
        static std::string digest( const std::string & input_1 , const std::string * input_2 ) ;
        static std::string mask( const std::string & k64 , const std::string & pad ) ;
        static std::string xor_( const std::string & , const std::string & ) ;
        static std::string key64( std::string ) ;
        static std::string ipad() ;
        static std::string opad() ;
        Md5() ;
} ;

#endif