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Replace 4-clause licensed blf.[ch] with blowfish implementation
from PuTTY with is under minimal BSD/MIT license. Marko Kreen.
This commit is contained in:
Neil Conway
parent
7d4c9a5793
commit
74b667ad42
@ -639,7 +639,7 @@ I have used code from following sources:
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DES crypt() David Burren and others FreeBSD libcrypt
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MD5 crypt() Poul-Henning Kamp FreeBSD libcrypt
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Blowfish crypt() Solar Designer www.openwall.com
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Blowfish cipher Niels Provos OpenBSD sys/crypto
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Blowfish cipher Simon Tatham PuTTY
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Rijndael cipher Brian Gladman OpenBSD sys/crypto
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MD5 and SHA1 WIDE Project KAME kame/sys/crypto
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SHA256/384/512 Aaron D. Gifford OpenBSD sys/crypto
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@ -651,7 +651,6 @@ I have used code from following sources:
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-------------
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* I owe a beer to Poul-Henning.
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* This product includes software developed by Niels Provos.
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10. References/Links
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@ -707,4 +706,4 @@ http://www.cs.ut.ee/~helger/crypto/[]::
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Collection of cryptology pointers.
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// $PostgreSQL: pgsql/contrib/pgcrypto/README.pgcrypto,v 1.18 2006/09/05 21:26:48 tgl Exp $
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// $PostgreSQL: pgsql/contrib/pgcrypto/README.pgcrypto,v 1.19 2007/03/28 22:48:58 neilc Exp $
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File diff suppressed because it is too large
Load Diff
@ -1,83 +1,48 @@
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/* $OpenBSD: blf.h,v 1.3 2001/05/15 02:40:35 deraadt Exp $ */
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/* $PostgreSQL: pgsql/contrib/pgcrypto/blf.h,v 1.6 2007/03/28 22:48:58 neilc Exp $ */
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/*
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* Blowfish - a fast block cipher designed by Bruce Schneier
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* PuTTY is copyright 1997-2007 Simon Tatham.
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*
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* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
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* All rights reserved.
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* Portions copyright Robert de Bath, Joris van Rantwijk, Delian
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* Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
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* Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, Markus
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* Kuhn, and CORE SDI S.A.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Niels Provos.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
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* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _BLF_H_
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#define _BLF_H_
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/* Schneier states the maximum key length to be 56 bytes.
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* The way how the subkeys are initalized by the key up
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* to (N+2)*4 i.e. 72 bytes are utilized.
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* Warning: For normal blowfish encryption only 56 bytes
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* of the key affect all cipherbits.
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*/
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#define BLF_N 16 /* Number of Subkeys */
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#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */
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/* Blowfish context */
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typedef struct BlowfishContext
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typedef struct
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{
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uint32 S[4][256]; /* S-Boxes */
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uint32 P[BLF_N + 2]; /* Subkeys */
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} blf_ctx;
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uint32 S0[256],
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S1[256],
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S2[256],
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S3[256],
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P[18];
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uint32 iv0,
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iv1; /* for CBC mode */
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} BlowfishContext;
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/* Raw access to customized Blowfish
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* blf_key is just:
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* Blowfish_initstate( state )
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* Blowfish_expand0state( state, key, keylen )
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*/
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void blowfish_setkey(BlowfishContext *ctx, const uint8 *key, short keybytes);
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void blowfish_setiv(BlowfishContext *ctx, const uint8 *iv);
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void blowfish_encrypt_cbc(uint8 *blk, int len, BlowfishContext *ctx);
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void blowfish_decrypt_cbc(uint8 *blk, int len, BlowfishContext *ctx);
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void blowfish_encrypt_ecb(uint8 *blk, int len, BlowfishContext *ctx);
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void blowfish_decrypt_ecb(uint8 *blk, int len, BlowfishContext *ctx);
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void Blowfish_encipher(blf_ctx *, uint32 *);
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void Blowfish_decipher(blf_ctx *, uint32 *);
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void Blowfish_initstate(blf_ctx *);
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void Blowfish_expand0state(blf_ctx *, const uint8 *, uint16);
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void Blowfish_expandstate
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(blf_ctx *, const uint8 *, uint16, const uint8 *, uint16);
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/* Standard Blowfish */
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void blf_key(blf_ctx *, const uint8 *, uint16);
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void blf_enc(blf_ctx *, uint32 *, uint16);
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void blf_dec(blf_ctx *, uint32 *, uint16);
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/* Converts uint8 to uint32 */
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uint32 Blowfish_stream2word(const uint8 *, uint16, uint16 *);
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void blf_ecb_encrypt(blf_ctx *, uint8 *, uint32);
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void blf_ecb_decrypt(blf_ctx *, uint8 *, uint32);
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void blf_cbc_encrypt(blf_ctx *, uint8 *, uint8 *, uint32);
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void blf_cbc_decrypt(blf_ctx *, uint8 *, uint8 *, uint32);
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#endif
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@ -26,7 +26,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $PostgreSQL: pgsql/contrib/pgcrypto/internal.c,v 1.25 2006/10/04 00:29:46 momjian Exp $
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* $PostgreSQL: pgsql/contrib/pgcrypto/internal.c,v 1.26 2007/03/28 22:48:58 neilc Exp $
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*/
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#include "postgres.h"
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@ -251,7 +251,7 @@ struct int_ctx
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uint8 iv[INT_MAX_IV];
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union
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{
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blf_ctx bf;
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BlowfishContext bf;
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rijndael_ctx rj;
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} ctx;
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unsigned keylen;
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@ -426,7 +426,7 @@ bf_block_size(PX_Cipher * c)
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static unsigned
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bf_key_size(PX_Cipher * c)
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{
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return BLF_MAXKEYLEN;
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return 448/8;
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}
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static unsigned
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@ -440,9 +440,9 @@ bf_init(PX_Cipher * c, const uint8 *key, unsigned klen, const uint8 *iv)
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{
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struct int_ctx *cx = (struct int_ctx *) c->ptr;
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blf_key(&cx->ctx.bf, key, klen);
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blowfish_setkey(&cx->ctx.bf, key, klen);
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if (iv)
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memcpy(cx->iv, iv, 8);
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blowfish_setiv(&cx->ctx.bf, iv);
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return 0;
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}
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@ -451,6 +451,7 @@ static int
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bf_encrypt(PX_Cipher * c, const uint8 *data, unsigned dlen, uint8 *res)
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{
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struct int_ctx *cx = (struct int_ctx *) c->ptr;
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BlowfishContext *bfctx = &cx->ctx.bf;
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if (dlen == 0)
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return 0;
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@ -462,11 +463,11 @@ bf_encrypt(PX_Cipher * c, const uint8 *data, unsigned dlen, uint8 *res)
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switch (cx->mode)
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{
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case MODE_ECB:
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blf_ecb_encrypt(&cx->ctx.bf, res, dlen);
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blowfish_encrypt_ecb(res, dlen, bfctx);
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break;
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case MODE_CBC:
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blf_cbc_encrypt(&cx->ctx.bf, cx->iv, res, dlen);
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memcpy(cx->iv, res + dlen - 8, 8);
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blowfish_encrypt_cbc(res, dlen, bfctx);
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break;
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}
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return 0;
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}
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@ -475,6 +476,7 @@ static int
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bf_decrypt(PX_Cipher * c, const uint8 *data, unsigned dlen, uint8 *res)
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{
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struct int_ctx *cx = (struct int_ctx *) c->ptr;
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BlowfishContext *bfctx = &cx->ctx.bf;
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if (dlen == 0)
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return 0;
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@ -486,11 +488,11 @@ bf_decrypt(PX_Cipher * c, const uint8 *data, unsigned dlen, uint8 *res)
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switch (cx->mode)
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{
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case MODE_ECB:
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blf_ecb_decrypt(&cx->ctx.bf, res, dlen);
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blowfish_decrypt_ecb(res, dlen, bfctx);
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break;
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case MODE_CBC:
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blf_cbc_decrypt(&cx->ctx.bf, cx->iv, res, dlen);
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memcpy(cx->iv, data + dlen - 8, 8);
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blowfish_decrypt_cbc(res, dlen, bfctx);
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break;
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}
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return 0;
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}
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