1c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org/* crypto/bf/bf_skey.c */ 2c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * All rights reserved. 4c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 5c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This package is an SSL implementation written 6c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * by Eric Young (eay@cryptsoft.com). 7c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The implementation was written so as to conform with Netscapes SSL. 8c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 9c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This library is free for commercial and non-commercial use as long as 10c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the following conditions are aheared to. The following conditions 11c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * apply to all code found in this distribution, be it the RC4, RSA, 12c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * included with this distribution is covered by the same copyright terms 14c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 16c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Copyright remains Eric Young's, and as such any Copyright notices in 17c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the code are not to be removed. 18c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * If this package is used in a product, Eric Young should be given attribution 19c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * as the author of the parts of the library used. 20c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This can be in the form of a textual message at program startup or 21c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * in documentation (online or textual) provided with the package. 22c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 23c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Redistribution and use in source and binary forms, with or without 24c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * modification, are permitted provided that the following conditions 25c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * are met: 26c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 1. Redistributions of source code must retain the copyright 27c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * notice, this list of conditions and the following disclaimer. 28c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 2. Redistributions in binary form must reproduce the above copyright 29c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * notice, this list of conditions and the following disclaimer in the 30c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * documentation and/or other materials provided with the distribution. 31c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 3. All advertising materials mentioning features or use of this software 32c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * must display the following acknowledgement: 33c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * "This product includes cryptographic software written by 34c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Eric Young (eay@cryptsoft.com)" 35c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The word 'cryptographic' can be left out if the rouines from the library 36c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * being used are not cryptographic related :-). 37c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 4. If you include any Windows specific code (or a derivative thereof) from 38c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the apps directory (application code) you must include an acknowledgement: 39c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 41c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * SUCH DAMAGE. 52c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 53c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The licence and distribution terms for any publically available version or 54c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * derivative of this code cannot be changed. i.e. this code cannot simply be 55c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * copied and put under another distribution licence 56c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * [including the GNU Public Licence.] 57c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org */ 58c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 59c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <stdio.h> 60c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <string.h> 612c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org#include <openssl/crypto.h> 62c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/blowfish.h> 63c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include "bf_locl.h" 64c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include "bf_pi.h" 65c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 66480da75abf485e7e2a6be5acc0f71842368792c0jnd@chromium.orgvoid BF_set_key(BF_KEY *key, int len, const unsigned char *data) 672c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org#ifdef OPENSSL_FIPS 682c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org { 692c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org fips_cipher_abort(BLOWFISH); 702c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org private_BF_set_key(key, len, data); 712c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org } 722c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.orgvoid private_BF_set_key(BF_KEY *key, int len, const unsigned char *data) 732c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org#endif 74c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 75c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int i; 76c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org BF_LONG *p,ri,in[2]; 77c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org const unsigned char *d,*end; 78c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 79c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 80c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org memcpy(key,&bf_init,sizeof(BF_KEY)); 81c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p=key->P; 82c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 83c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (len > ((BF_ROUNDS+2)*4)) len=(BF_ROUNDS+2)*4; 84c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 85c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org d=data; 86c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org end= &(data[len]); 87c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (i=0; i<(BF_ROUNDS+2); i++) 88c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 89c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri= *(d++); 90c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (d >= end) d=data; 91c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 92c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri<<=8; 93c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri|= *(d++); 94c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (d >= end) d=data; 95c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 96c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri<<=8; 97c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri|= *(d++); 98c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (d >= end) d=data; 99c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 100c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri<<=8; 101c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ri|= *(d++); 102c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (d >= end) d=data; 103c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 104c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p[i]^=ri; 105c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 106c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 107c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org in[0]=0L; 108c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org in[1]=0L; 109c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (i=0; i<(BF_ROUNDS+2); i+=2) 110c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 111c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org BF_encrypt(in,key); 112c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p[i ]=in[0]; 113c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p[i+1]=in[1]; 114c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 115c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 116c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p=key->S; 117c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org for (i=0; i<4*256; i+=2) 118c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 119c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org BF_encrypt(in,key); 120c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p[i ]=in[0]; 121c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org p[i+1]=in[1]; 122c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 123c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 124c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 125