X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=crypto%2Fbf%2Fbf_skey.c;h=a4903a2a71de58a6643693d69c4642b44eba0fb1;hb=cc4e37f1e4af060dc41a3c84041a183ecd7aa80e;hp=f6c45535e112862e87ef04a95c3b843a5e4aa30e;hpb=6b691a5c85ddc4e407e32781841fee5c029506cd;p=openssl.git diff --git a/crypto/bf/bf_skey.c b/crypto/bf/bf_skey.c index f6c45535e1..a4903a2a71 100644 --- a/crypto/bf/bf_skey.c +++ b/crypto/bf/bf_skey.c @@ -1,116 +1,67 @@ -/* crypto/bf/bf_skey.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * 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 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 cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 OR CONTRIBUTORS 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 licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include #include -#include "blowfish.h" +#include #include "bf_locl.h" #include "bf_pi.h" -void BF_set_key(BF_KEY *key, int len, unsigned char *data) - { - int i; - BF_LONG *p,ri,in[2]; - unsigned char *d,*end; +void BF_set_key(BF_KEY *key, int len, const unsigned char *data) +{ + int i; + BF_LONG *p, ri, in[2]; + const unsigned char *d, *end; + memcpy(key, &bf_init, sizeof(BF_KEY)); + p = key->P; - memcpy((char *)key,(char *)&bf_init,sizeof(BF_KEY)); - p=key->P; + if (len > ((BF_ROUNDS + 2) * 4)) + len = (BF_ROUNDS + 2) * 4; - if (len > ((BF_ROUNDS+2)*4)) len=(BF_ROUNDS+2)*4; + d = data; + end = &(data[len]); + for (i = 0; i < (BF_ROUNDS + 2); i++) { + ri = *(d++); + if (d >= end) + d = data; - d=data; - end= &(data[len]); - for (i=0; i<(BF_ROUNDS+2); i++) - { - ri= *(d++); - if (d >= end) d=data; + ri <<= 8; + ri |= *(d++); + if (d >= end) + d = data; - ri<<=8; - ri|= *(d++); - if (d >= end) d=data; + ri <<= 8; + ri |= *(d++); + if (d >= end) + d = data; - ri<<=8; - ri|= *(d++); - if (d >= end) d=data; + ri <<= 8; + ri |= *(d++); + if (d >= end) + d = data; - ri<<=8; - ri|= *(d++); - if (d >= end) d=data; + p[i] ^= ri; + } - p[i]^=ri; - } - - in[0]=0L; - in[1]=0L; - for (i=0; i<(BF_ROUNDS+2); i+=2) - { - BF_encrypt(in,key); - p[i ]=in[0]; - p[i+1]=in[1]; - } - - p=key->S; - for (i=0; i<4*256; i+=2) - { - BF_encrypt(in,key); - p[i ]=in[0]; - p[i+1]=in[1]; - } - } + in[0] = 0L; + in[1] = 0L; + for (i = 0; i < (BF_ROUNDS + 2); i += 2) { + BF_encrypt(in, key); + p[i] = in[0]; + p[i + 1] = in[1]; + } + p = key->S; + for (i = 0; i < 4 * 256; i += 2) { + BF_encrypt(in, key); + p[i] = in[0]; + p[i + 1] = in[1]; + } +}