database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

Replace 4-clause licensed blf.[ch] with blowfish implementation

Browse Source 
from PuTTY with is under minimal BSD/MIT license. Marko Kreen.
This commit is contained in:
Neil Conway
2007-03-28 22:48:58 +00:00
parent 7d4c9a5793
commit 74b667ad42
4 changed files with 492 additions and 721 deletions
Download Patch File Download Diff File Expand all files Collapse all files

111
contrib/pgcrypto/blf.h
View File

@ -1,83 +1,48 @@
/* $OpenBSD: blf.h,v 1.3 2001/05/15 02:40:35 deraadt Exp $ */
/* $PostgreSQL: pgsql/contrib/pgcrypto/blf.h,v 1.6 2007/03/28 22:48:58 neilc Exp $ */
/*
* Blowfish - a fast block cipher designed by Bruce Schneier
* PuTTY is copyright 1997-2007 Simon Tatham.
*
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
* Portions copyright Robert de Bath, Joris van Rantwijk, Delian
* Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
* Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, Markus
* Kuhn, and CORE SDI S.A.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _BLF_H_
#define _BLF_H_
/* Schneier states the maximum key length to be 56 bytes.
* The way how the subkeys are initalized by the key up
* to (N+2)*4 i.e. 72 bytes are utilized.
* Warning: For normal blowfish encryption only 56 bytes
* of the key affect all cipherbits.
*/
#define BLF_N 16 /* Number of Subkeys */
#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */
/* Blowfish context */
typedef struct BlowfishContext
typedef struct
{
uint32 S[4][256]; /* S-Boxes */
uint32 P[BLF_N + 2]; /* Subkeys */
} blf_ctx;
uint32 S0[256],
S1[256],
S2[256],
S3[256],
P[18];
uint32 iv0,
iv1; /* for CBC mode */
} BlowfishContext;
/* Raw access to customized Blowfish
* blf_key is just:
* Blowfish_initstate( state )
* Blowfish_expand0state( state, key, keylen )
*/
void blowfish_setkey(BlowfishContext *ctx, const uint8 *key, short keybytes);
void blowfish_setiv(BlowfishContext *ctx, const uint8 *iv);
void blowfish_encrypt_cbc(uint8 *blk, int len, BlowfishContext *ctx);
void blowfish_decrypt_cbc(uint8 *blk, int len, BlowfishContext *ctx);
void blowfish_encrypt_ecb(uint8 *blk, int len, BlowfishContext *ctx);
void blowfish_decrypt_ecb(uint8 *blk, int len, BlowfishContext *ctx);
void Blowfish_encipher(blf_ctx *, uint32 *);
void Blowfish_decipher(blf_ctx *, uint32 *);
void Blowfish_initstate(blf_ctx *);
void Blowfish_expand0state(blf_ctx *, const uint8 *, uint16);
void Blowfish_expandstate
(blf_ctx *, const uint8 *, uint16, const uint8 *, uint16);
/* Standard Blowfish */
void blf_key(blf_ctx *, const uint8 *, uint16);
void blf_enc(blf_ctx *, uint32 *, uint16);
void blf_dec(blf_ctx *, uint32 *, uint16);
/* Converts uint8 to uint32 */
uint32 Blowfish_stream2word(const uint8 *, uint16, uint16 *);
void blf_ecb_encrypt(blf_ctx *, uint8 *, uint32);
void blf_ecb_decrypt(blf_ctx *, uint8 *, uint32);
void blf_cbc_encrypt(blf_ctx *, uint8 *, uint8 *, uint32);
void blf_cbc_decrypt(blf_ctx *, uint8 *, uint8 *, uint32);
#endif