106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/*
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* Copyright (c) 1999, 2000, 2002 Virtual Unlimited B.V.
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*
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*!\file blowfish.h
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* \brief Blowfish block cipher.
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*
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* For more information on this blockcipher, see:
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* "Applied Cryptography", second edition
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* Bruce Schneier
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* Wiley & Sons
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*
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* Also see http://www.counterpane.com/blowfish.html
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*
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* \author Bob Deblier <bob.deblier@pandora.be>
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* \ingroup BC_m BC_blowfish_m
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*/
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#ifndef _BLOWFISH_H
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#define _BLOWFISH_H
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#include "beecrypt.h"
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#include "blowfishopt.h"
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#define BLOWFISHROUNDS 16
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#define BLOWFISHPSIZE (BLOWFISHROUNDS+2)
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/** \ingroup BC_blowfish_m
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*/
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typedef struct
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{
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uint32_t p[BLOWFISHPSIZE];
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uint32_t s[1024];
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uint32_t fdback[2];
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} blowfishParam;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \ingroup BC_blowfish_m
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*/
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/*@observer@*/ /*@checked@*/
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extern const BEECRYPTAPI blockCipher blowfish;
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/** \ingroup BC_blowfish_m
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*/
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/*@-exportlocal@*/
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BEECRYPTAPI
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int blowfishSetup (blowfishParam* bp, const byte* key, size_t keybits, cipherOperation op)
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/*@modifies bp @*/;
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/*@=exportlocal@*/
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/** \ingroup BC_blowfish_m
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*/
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/*@-exportlocal@*/
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BEECRYPTAPI
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int blowfishSetIV (blowfishParam* bp, const byte* iv)
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/*@modifies bp @*/;
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/*@=exportlocal@*/
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/** \ingroup BC_blowfish_m
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*/
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/*@-exportlocal@*/
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BEECRYPTAPI
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int blowfishEncrypt(blowfishParam* bp, uint32_t* dst, const uint32_t* src)
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/*@modifies bp, dst @*/;
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/*@=exportlocal@*/
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/** \ingroup BC_blowfish_m
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*/
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/*@-exportlocal@*/
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BEECRYPTAPI
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int blowfishDecrypt(blowfishParam* bp, uint32_t* dst, const uint32_t* src)
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/*@modifies bp, dst @*/;
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/*@=exportlocal@*/
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/** \ingroup BC_blowfish_m
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*/
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/*@-exportlocal@*/
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BEECRYPTAPI /*@observer@*/
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uint32_t* blowfishFeedback(blowfishParam* bp)
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/*@*/;
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/*@=exportlocal@*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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