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/*
* Baltisot
* Copyright (C) 1999-2008 Nicolas "Pixel" Noble
*
* 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 __HASHFUNCTION_H__
#define __HASHFUNCTION_H__
#include <Exceptions.h>
#include <Handle.h>
class HashFunction : public Base {
public:
HashFunction();
void Update(const String &);
void Update(const unsigned char * data, size_t len);
void Update(Handle *, ssize_t = -1);
String Finish();
size_t RFinish(Uint8 * digest);
protected:
size_t finish();
virtual void update(const unsigned char * data, size_t len) = 0;
virtual size_t finish(Uint8 * digest) = 0;
Uint8 digest[256];
size_t l;
private:
bool finished;
};
class SHA1 : public HashFunction {
public:
SHA1();
virtual ~SHA1();
size_t size();
protected:
virtual void update(const unsigned char * data, size_t len);
virtual size_t finish(Uint8 * digest);
private:
void * opaque;
};
class SHA256 : public HashFunction {
public:
SHA256();
virtual ~SHA256();
size_t size();
protected:
virtual void update(const unsigned char * data, size_t len);
virtual size_t finish(Uint8 * digest);
private:
void * opaque;
};
class MD5 : public HashFunction {
public:
MD5();
virtual ~MD5();
size_t size();
protected:
virtual void update(const unsigned char * data, size_t len);
virtual size_t finish(Uint8 * digest);
private:
void * opaque;
};
#endif
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