libecc/sha.h

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//
//
// This file is part of the libecc package.
// Copyright (C) 2002, by
//
// Carlo Wood, Run on IRC <carlo@alinoe.com>
// RSA-1024 0x624ACAD5 1997-01-26                    Sign & Encrypt
// Fingerprint16 = 32 EC A7 B6 AC DB 65 A6  F6 F6 55 DD 1C DC FF 61
//
// 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.
//

#ifndef LIBECC_SHA_H
#define LIBECC_SHA_H

#include <libecc/bitset.h>

namespacelibecc {

classsha1 {
  private:
    uint32_t H0;
    uint32_t H1;
    uint32_t H2;
    uint32_t H3;
    uint32_t H4;
    uint32_t A;
    uint32_t B;
    uint32_t C;
    uint32_t D;
    uint32_t E;
    uint32_t W[80];

  public:
    sha1(void);

    void process_msg(bitset_digit_t const* message, size_t number_of_bits);

    template<unsigned int n> void process_msg(bitset<n> const& message, size_t number_of_bits = n)
        { process_msg(message.digits_ptr(), number_of_bits); }

    bitset<160> digest(void) const;

  protected:
    void reset();

    void process_block(bitset_digit_t const* block);
};

} // namespace libecc

#endif // LIBECC_SHA_H