pdigest.h

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/*
 *   P::Classes - Portable C++ Application Framework
 *   Copyright (C) 2000-2003  Christian Prochnow <cproch@seculogix.de>
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Lesser General Public
 *   License as published by the Free Software Foundation; either
 *   version 2 of the License, or (at your option) any later version.
 *
 *   This library 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
 *   Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _pdigest_h_
#define _pdigest_h_

#include <pclasses/pexport.h>
#include <string>
#include <iostream>

namespace P {


class PCRYPTO_EXPORT Digest {
  public:
    Digest();
    virtual ~Digest();


    virtual void update(const char* buff, size_t len) = 0;


    virtual std::string digest() const = 0;


    virtual void clear() = 0;

    Digest& operator<<(const std::string& str);

    friend PCRYPTO_EXPORT std::ostream& operator<<(std::ostream& os, const Digest& dig);

};

}

#endif

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