2014-11-15 04:16:00 +02:00
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/* This file is part of the KDE project
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Copyright (C) 2001 George Staikos <staikos@kde.org>
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Based heavily on SHA1 code from GPG 1.0.3 (C) 1998 FSF
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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2015-07-11 18:25:01 +03:00
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#ifndef SHA1__KO_H
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#define SHA1__KO_H
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2014-11-15 04:16:00 +02:00
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#include <kwallet_export.h>
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/* @internal
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*/
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class KWALLETBACKEND_EXPORT SHA1 {
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public:
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SHA1();
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~SHA1();
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/*
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* The number of bits in the hash generated.
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*/
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int size() const;
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/*
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* True if all settings are good and we are ready to hash.
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*/
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bool readyToGo() const;
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/*
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* Process a block of data for the hash function.
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*/
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int process(const void *block, int len);
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/*
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* Return the digest as a 20 byte array reference.
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* Calling this makes readyToGo() == false.
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*/
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const unsigned char *hash();
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/*
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* Reset the digest so a new one can be calculated.
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*/
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int reset();
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protected:
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int _hashlen;
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bool _init;
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long _h0, _h1, _h2, _h3, _h4;
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long _nblocks;
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int _count;
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unsigned char _buf[64];
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void transform(void *data);
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};
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#endif
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