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blowfish.h

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00001 /*
00002  * Copyright (c) 1999, 2000, 2002 Virtual Unlimited B.V.
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017  *
00018  */
00019 
00034 #ifndef _BLOWFISH_H
00035 #define _BLOWFISH_H
00036 
00037 #include "beecrypt/beecrypt.h"
00038 #include "beecrypt/blowfishopt.h"
00039 
00040 #define BLOWFISHROUNDS  16
00041 #define BLOWFISHPSIZE   (BLOWFISHROUNDS+2)
00042 
00046 #ifdef __cplusplus
00047 struct BEECRYPTAPI blowfishParam
00048 #else
00049 struct _blowfishParam
00050 #endif
00051 {
00055     uint32_t p[BLOWFISHPSIZE];
00059     uint32_t s[1024];
00063     uint32_t fdback[2];
00064 };
00065 
00066 #ifndef __cplusplus
00067 typedef struct _blowfishParam blowfishParam;
00068 #endif
00069 
00070 #ifdef __cplusplus
00071 extern "C" {
00072 #endif
00073 
00077 extern const BEECRYPTAPI blockCipher blowfish;
00078 
00090 BEECRYPTAPI
00091 int     blowfishSetup   (blowfishParam*, const byte*, size_t, cipherOperation);
00092 
00100 BEECRYPTAPI
00101 int     blowfishSetIV   (blowfishParam*, const byte*);
00102 
00111 BEECRYPTAPI
00112 int     blowfishEncrypt (blowfishParam*, uint32_t*, const uint32_t*);
00113 
00122 BEECRYPTAPI
00123 int     blowfishDecrypt (blowfishParam*, uint32_t*, const uint32_t*);
00124 
00125 BEECRYPTAPI
00126 uint32_t*   blowfishFeedback(blowfishParam*);
00127 
00128 #ifdef __cplusplus
00129 }
00130 #endif
00131 
00132 #endif

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