155714Skris/* crypto/bf/bf_skey.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8296341Sdelphij * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15296341Sdelphij * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22296341Sdelphij * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37296341Sdelphij * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40296341Sdelphij * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52296341Sdelphij * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include <string.h> 61238405Sjkim#include <openssl/crypto.h> 6255714Skris#include <openssl/blowfish.h> 6355714Skris#include "bf_locl.h" 6455714Skris#include "bf_pi.h" 6555714Skris 66238405Sjkimvoid BF_set_key(BF_KEY *key, int len, const unsigned char *data) 67238405Sjkim#ifdef OPENSSL_FIPS 68296341Sdelphij{ 69296341Sdelphij fips_cipher_abort(BLOWFISH); 70296341Sdelphij private_BF_set_key(key, len, data); 71296341Sdelphij} 72296341Sdelphij 73238405Sjkimvoid private_BF_set_key(BF_KEY *key, int len, const unsigned char *data) 74238405Sjkim#endif 75296341Sdelphij{ 76296341Sdelphij int i; 77296341Sdelphij BF_LONG *p, ri, in[2]; 78296341Sdelphij const unsigned char *d, *end; 7955714Skris 80296341Sdelphij memcpy(key, &bf_init, sizeof(BF_KEY)); 81296341Sdelphij p = key->P; 8255714Skris 83296341Sdelphij if (len > ((BF_ROUNDS + 2) * 4)) 84296341Sdelphij len = (BF_ROUNDS + 2) * 4; 8555714Skris 86296341Sdelphij d = data; 87296341Sdelphij end = &(data[len]); 88296341Sdelphij for (i = 0; i < (BF_ROUNDS + 2); i++) { 89296341Sdelphij ri = *(d++); 90296341Sdelphij if (d >= end) 91296341Sdelphij d = data; 9255714Skris 93296341Sdelphij ri <<= 8; 94296341Sdelphij ri |= *(d++); 95296341Sdelphij if (d >= end) 96296341Sdelphij d = data; 9755714Skris 98296341Sdelphij ri <<= 8; 99296341Sdelphij ri |= *(d++); 100296341Sdelphij if (d >= end) 101296341Sdelphij d = data; 10255714Skris 103296341Sdelphij ri <<= 8; 104296341Sdelphij ri |= *(d++); 105296341Sdelphij if (d >= end) 106296341Sdelphij d = data; 10755714Skris 108296341Sdelphij p[i] ^= ri; 109296341Sdelphij } 11055714Skris 111296341Sdelphij in[0] = 0L; 112296341Sdelphij in[1] = 0L; 113296341Sdelphij for (i = 0; i < (BF_ROUNDS + 2); i += 2) { 114296341Sdelphij BF_encrypt(in, key); 115296341Sdelphij p[i] = in[0]; 116296341Sdelphij p[i + 1] = in[1]; 117296341Sdelphij } 11855714Skris 119296341Sdelphij p = key->S; 120296341Sdelphij for (i = 0; i < 4 * 256; i += 2) { 121296341Sdelphij BF_encrypt(in, key); 122296341Sdelphij p[i] = in[0]; 123296341Sdelphij p[i + 1] = in[1]; 124296341Sdelphij } 125296341Sdelphij} 126