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beecrypt/blowfish.h

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00001 
00007 /*
00008  * Copyright (c) 1999, 2000 Virtual Unlimited B.V.
00009  *
00010  * Author: Bob Deblier <bob@virtualunlimited.com>
00011  *
00012  * This library is free software; you can redistribute it and/or
00013  * modify it under the terms of the GNU Lesser General Public
00014  * License as published by the Free Software Foundation; either
00015  * version 2.1 of the License, or (at your option) any later version.
00016  *
00017  * This library is distributed in the hope that it will be useful,
00018  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00019  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00020  * Lesser General Public License for more details.
00021  *
00022  * You should have received a copy of the GNU Lesser General Public
00023  * License along with this library; if not, write to the Free Software
00024  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00025  *
00026  */
00027 
00028 #ifndef _BLOWFISH_H
00029 #define _BLOWFISH_H
00030 
00031 #include "beecrypt.h"
00032 #include "blowfishopt.h"
00033 
00034 #define BLOWFISHROUNDS  16
00035 #define BLOWFISHPSIZE   (BLOWFISHROUNDS+2)
00036 
00039 typedef struct
00040 {
00041         uint32 p[BLOWFISHPSIZE];
00042         uint32 s[1024];
00043         uint32 fdback[2];
00044 } blowfishParam;
00045 
00046 #ifdef __cplusplus
00047 extern "C" {
00048 #endif
00049 
00052 /*@observer@*/ /*@checked@*/
00053 extern const BEECRYPTAPI blockCipher blowfish;
00054 
00057 /*@-exportlocal@*/
00058 BEECRYPTAPI
00059 int blowfishSetup  (blowfishParam* bp, const uint32* key, int keybits, cipherOperation op)
00060         /*@modifies bp */;
00061 /*@=exportlocal@*/
00062 
00065 /*@-exportlocal@*/
00066 BEECRYPTAPI
00067 int blowfishSetIV  (blowfishParam* bp, const uint32* iv)
00068         /*@modifies bp */;
00069 /*@=exportlocal@*/
00070 
00073 /*@-exportlocal@*/
00074 BEECRYPTAPI
00075 int blowfishEncrypt(blowfishParam* bp, uint32* dst, const uint32* src)
00076         /*@modifies bp, dst */;
00077 /*@=exportlocal@*/
00078 
00081 /*@-exportlocal@*/
00082 BEECRYPTAPI
00083 int blowfishDecrypt(blowfishParam* bp, uint32* dst, const uint32* src)
00084         /*@modifies bp, dst */;
00085 /*@=exportlocal@*/
00086 
00089 /*@-exportlocal@*/
00090 BEECRYPTAPI
00091 int blowfishECBEncrypt(blowfishParam* bp, int count, uint32* dst, const uint32* src)
00092         /*@modifies bp, dst */;
00093 /*@=exportlocal@*/
00094 
00097 /*@-exportlocal@*/
00098 BEECRYPTAPI
00099 int blowfishECBDecrypt(blowfishParam* bp, int count, uint32* dst, const uint32* src)
00100         /*@modifies bp, dst */;
00101 /*@=exportlocal@*/
00102 
00105 /*@-exportlocal@*/
00106 BEECRYPTAPI
00107 int blowfishCBCEncrypt(blowfishParam* bp, int count, uint32* dst, const uint32* src)
00108         /*@modifies bp, dst */;
00109 /*@=exportlocal@*/
00110 
00113 /*@-exportlocal@*/
00114 BEECRYPTAPI
00115 int blowfishCBCDecrypt(blowfishParam* bp, int count, uint32* dst, const uint32* src)
00116         /*@modifies bp, dst */;
00117 /*@=exportlocal@*/
00118 
00119 #ifdef __cplusplus
00120 }
00121 #endif
00122 
00123 #endif

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