source: psi/trunk/cutestuff/util/sha1.h@ 12

/*
 * sha1.h - Secure Hash Algorithm 1
 * Copyright (C) 2003  Justin Karneges
 *
 * 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 2.1 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 CS_SHA1_H
#define CS_SHA1_H

#include<qstring.h>

// CS_NAMESPACE_BEGIN

class SHA1
{
public:
        static QByteArray hash(const QByteArray &);
        static QByteArray hashString(const QCString &);
        static QString digest(const QString &);

private:
        SHA1();

        struct SHA1_CONTEXT
        {
                Q_UINT32 state[5];
                Q_UINT32 count[2];
                unsigned char buffer[64];
        };

        typedef union {
                unsigned char c[64];
                Q_UINT32 l[16];
        } CHAR64LONG16;

        void transform(Q_UINT32 state[5], unsigned char buffer[64]);
        void init(SHA1_CONTEXT* context);
        void update(SHA1_CONTEXT* context, unsigned char* data, Q_UINT32 len);
        void final(unsigned char digest[20], SHA1_CONTEXT* context);

        unsigned long blk0(Q_UINT32 i);
        bool bigEndian;

        CHAR64LONG16* block;
};

// CS_NAMESPACE_END

#endif