psha1.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 _psha1_h_
#define _psha1_h_

#include <pclasses/pexport.h>
#include <pclasses/pdigest.h>
#include <pclasses/ptypes.h>

namespace P {


class PCRYPTO_EXPORT SHA1Digest: public Digest {
  public:
    enum {
      DIGEST_SIZE = 20,
      BLOCK_SIZE  = 64
    };

    SHA1Digest();
    SHA1Digest(const SHA1Digest& dig);
    ~SHA1Digest();

    virtual void update(const char* buff, size_t len);
    virtual std::string digest() const;
    virtual void clear();

    SHA1Digest& operator=(const SHA1Digest& dig);

  private:
    void init();
    void transform(const uint8_t* buffer);

    uint64_t  m_byteCount;
    uint32_t  m_state[5];
    uint8_t   m_block[64];
};

}

#endif

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