X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Fcrypto%2Fbf%2Fbf_cbc.c;fp=lib%2Fopenssl%2Fcrypto%2Fbf%2Fbf_cbc.c;h=6ed62578ace3cba54c37dffd6958ded723b77dc8;hb=02ed66432c92de70694700164f986190aad3cbc5;hp=f949629dc67609229b6a1aa136cade467ef09b7b;hpb=89016837dcbf2775cd15dc8cbaba00dc6379f86e;p=cassiopeia.git diff --git a/lib/openssl/crypto/bf/bf_cbc.c b/lib/openssl/crypto/bf/bf_cbc.c index f949629..6ed6257 100644 --- a/lib/openssl/crypto/bf/bf_cbc.c +++ b/lib/openssl/crypto/bf/bf_cbc.c @@ -1,143 +1,86 @@ -/* crypto/bf/bf_cbc.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 "bf_locl.h" void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, - const BF_KEY *schedule, unsigned char *ivec, int encrypt) - { - register BF_LONG tin0,tin1; - register BF_LONG tout0,tout1,xor0,xor1; - register long l=length; - BF_LONG tin[2]; - - if (encrypt) - { - n2l(ivec,tout0); - n2l(ivec,tout1); - ivec-=8; - for (l-=8; l>=0; l-=8) - { - n2l(in,tin0); - n2l(in,tin1); - tin0^=tout0; - tin1^=tout1; - tin[0]=tin0; - tin[1]=tin1; - BF_encrypt(tin,schedule); - tout0=tin[0]; - tout1=tin[1]; - l2n(tout0,out); - l2n(tout1,out); - } - if (l != -8) - { - n2ln(in,tin0,tin1,l+8); - tin0^=tout0; - tin1^=tout1; - tin[0]=tin0; - tin[1]=tin1; - BF_encrypt(tin,schedule); - tout0=tin[0]; - tout1=tin[1]; - l2n(tout0,out); - l2n(tout1,out); - } - l2n(tout0,ivec); - l2n(tout1,ivec); - } - else - { - n2l(ivec,xor0); - n2l(ivec,xor1); - ivec-=8; - for (l-=8; l>=0; l-=8) - { - n2l(in,tin0); - n2l(in,tin1); - tin[0]=tin0; - tin[1]=tin1; - BF_decrypt(tin,schedule); - tout0=tin[0]^xor0; - tout1=tin[1]^xor1; - l2n(tout0,out); - l2n(tout1,out); - xor0=tin0; - xor1=tin1; - } - if (l != -8) - { - n2l(in,tin0); - n2l(in,tin1); - tin[0]=tin0; - tin[1]=tin1; - BF_decrypt(tin,schedule); - tout0=tin[0]^xor0; - tout1=tin[1]^xor1; - l2nn(tout0,tout1,out,l+8); - xor0=tin0; - xor1=tin1; - } - l2n(xor0,ivec); - l2n(xor1,ivec); - } - tin0=tin1=tout0=tout1=xor0=xor1=0; - tin[0]=tin[1]=0; - } + const BF_KEY *schedule, unsigned char *ivec, int encrypt) +{ + register BF_LONG tin0, tin1; + register BF_LONG tout0, tout1, xor0, xor1; + register long l = length; + BF_LONG tin[2]; + if (encrypt) { + n2l(ivec, tout0); + n2l(ivec, tout1); + ivec -= 8; + for (l -= 8; l >= 0; l -= 8) { + n2l(in, tin0); + n2l(in, tin1); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + BF_encrypt(tin, schedule); + tout0 = tin[0]; + tout1 = tin[1]; + l2n(tout0, out); + l2n(tout1, out); + } + if (l != -8) { + n2ln(in, tin0, tin1, l + 8); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + BF_encrypt(tin, schedule); + tout0 = tin[0]; + tout1 = tin[1]; + l2n(tout0, out); + l2n(tout1, out); + } + l2n(tout0, ivec); + l2n(tout1, ivec); + } else { + n2l(ivec, xor0); + n2l(ivec, xor1); + ivec -= 8; + for (l -= 8; l >= 0; l -= 8) { + n2l(in, tin0); + n2l(in, tin1); + tin[0] = tin0; + tin[1] = tin1; + BF_decrypt(tin, schedule); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2n(tout0, out); + l2n(tout1, out); + xor0 = tin0; + xor1 = tin1; + } + if (l != -8) { + n2l(in, tin0); + n2l(in, tin1); + tin[0] = tin0; + tin[1] = tin1; + BF_decrypt(tin, schedule); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2nn(tout0, tout1, out, l + 8); + xor0 = tin0; + xor1 = tin1; + } + l2n(xor0, ivec); + l2n(xor1, ivec); + } + tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; + tin[0] = tin[1] = 0; +}