9f16c2bf8e
* *
* update copyright headers with new FSF postal address
* COPYING.txt -> LICENSE.txt (rest of repo to be synced)
83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
/*
|
|
* This code implements BlowFish algorithm designed by Bruce Schneier.
|
|
* The description of BlowFish algorithm can be found at:
|
|
* http://www.schneier.com/paper-blowfish-fse.html
|
|
* This code uses for initial s-boxes and p-array values PI hex digits
|
|
* taken from tables public at:
|
|
* http://www.schneier.com/blowfish.html
|
|
* which can be downloaded from:
|
|
* http://www.schneier.com/code/constants.txt
|
|
*
|
|
* Copyright 2009 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
|
|
*
|
|
* 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, 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; see the file LICENSE.txt. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
|
|
*
|
|
* As a special exception, the Harbour Project gives permission for
|
|
* additional uses of the text contained in its release of Harbour.
|
|
*
|
|
* The exception is that, if you link the Harbour libraries with other
|
|
* files to produce an executable, this does not by itself cause the
|
|
* resulting executable to be covered by the GNU General Public License.
|
|
* Your use of that executable is in no way restricted on account of
|
|
* linking the Harbour library code into it.
|
|
*
|
|
* This exception does not however invalidate any other reasons why
|
|
* the executable file might be covered by the GNU General Public License.
|
|
*
|
|
* This exception applies only to the code released by the Harbour
|
|
* Project under the name Harbour. If you copy code from other
|
|
* Harbour Project or Free Software Foundation releases into a copy of
|
|
* Harbour, as the General Public License permits, the exception does
|
|
* not apply to the code that you add in this way. To avoid misleading
|
|
* anyone as to the status of such modified files, you must delete
|
|
* this exception notice from them.
|
|
*
|
|
* If you write modifications of your own for Harbour, it is your choice
|
|
* whether to permit this exception to apply to your modifications.
|
|
* If you do not wish that, delete this exception notice.
|
|
*
|
|
*/
|
|
|
|
#ifndef HB_BLOWFISH_H_
|
|
#define HB_BLOWFISH_H_
|
|
|
|
#include "hbdefs.h"
|
|
|
|
HB_EXTERN_BEGIN
|
|
|
|
#define HB_BF_CIPHERBLOCK 8
|
|
|
|
#define SUBKEYS_COUNT 18
|
|
#define SBOX_ENTRIES 256
|
|
|
|
typedef struct
|
|
{
|
|
HB_U32 P[ SUBKEYS_COUNT ];
|
|
HB_U32 S1[ SBOX_ENTRIES ];
|
|
HB_U32 S2[ SBOX_ENTRIES ];
|
|
HB_U32 S3[ SBOX_ENTRIES ];
|
|
HB_U32 S4[ SBOX_ENTRIES ];
|
|
}
|
|
HB_BLOWFISH;
|
|
|
|
extern HB_EXPORT void hb_blowfishInit( HB_BLOWFISH * bf, const void * keydata, int keylen );
|
|
extern HB_EXPORT void hb_blowfishEncrypt( const HB_BLOWFISH * bf, HB_U32 * xl, HB_U32 * xr );
|
|
extern HB_EXPORT void hb_blowfishDecrypt( const HB_BLOWFISH * bf, HB_U32 * xl, HB_U32 * xr );
|
|
|
|
HB_EXTERN_END
|
|
|
|
#endif /* HB_BLOWFISH_H_ */
|