X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Fcrypto%2Fdes%2Fncbc_enc.c;h=244f15ca2a9600f15524760ca56bc06a3d81cb76;hb=02ed66432c92de70694700164f986190aad3cbc5;hp=fda23d522f3fc32c458ce201ecd53dcbdee1cc18;hpb=89016837dcbf2775cd15dc8cbaba00dc6379f86e;p=cassiopeia.git diff --git a/lib/openssl/crypto/des/ncbc_enc.c b/lib/openssl/crypto/des/ncbc_enc.c index fda23d5..244f15c 100644 --- a/lib/openssl/crypto/des/ncbc_enc.c +++ b/lib/openssl/crypto/des/ncbc_enc.c @@ -1,148 +1,106 @@ -/* crypto/des/ncbc_enc.c */ /* + * Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * 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 + */ + +/*- * #included by: * cbc_enc.c (DES_cbc_encrypt) * des_enc.c (DES_ncbc_encrypt) */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * 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.] - */ #include "des_locl.h" #ifdef CBC_ENC_C__DONT_UPDATE_IV void DES_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, - DES_key_schedule *_schedule, DES_cblock *ivec, int enc) + DES_key_schedule *_schedule, DES_cblock *ivec, int enc) #else -void DES_ncbc_encrypt(const unsigned char *in, unsigned char *out, long length, - DES_key_schedule *_schedule, DES_cblock *ivec, int enc) +void DES_ncbc_encrypt(const unsigned char *in, unsigned char *out, + long length, DES_key_schedule *_schedule, + DES_cblock *ivec, int enc) #endif - { - register DES_LONG tin0,tin1; - register DES_LONG tout0,tout1,xor0,xor1; - register long l=length; - DES_LONG tin[2]; - unsigned char *iv; +{ + register DES_LONG tin0, tin1; + register DES_LONG tout0, tout1, xor0, xor1; + register long l = length; + DES_LONG tin[2]; + unsigned char *iv; - iv = &(*ivec)[0]; + iv = &(*ivec)[0]; - if (enc) - { - c2l(iv,tout0); - c2l(iv,tout1); - for (l-=8; l>=0; l-=8) - { - c2l(in,tin0); - c2l(in,tin1); - tin0^=tout0; tin[0]=tin0; - tin1^=tout1; tin[1]=tin1; - DES_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT); - tout0=tin[0]; l2c(tout0,out); - tout1=tin[1]; l2c(tout1,out); - } - if (l != -8) - { - c2ln(in,tin0,tin1,l+8); - tin0^=tout0; tin[0]=tin0; - tin1^=tout1; tin[1]=tin1; - DES_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT); - tout0=tin[0]; l2c(tout0,out); - tout1=tin[1]; l2c(tout1,out); - } + if (enc) { + c2l(iv, tout0); + c2l(iv, tout1); + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + c2l(in, tin1); + tin0 ^= tout0; + tin[0] = tin0; + tin1 ^= tout1; + tin[1] = tin1; + DES_encrypt1((DES_LONG *)tin, _schedule, DES_ENCRYPT); + tout0 = tin[0]; + l2c(tout0, out); + tout1 = tin[1]; + l2c(tout1, out); + } + if (l != -8) { + c2ln(in, tin0, tin1, l + 8); + tin0 ^= tout0; + tin[0] = tin0; + tin1 ^= tout1; + tin[1] = tin1; + DES_encrypt1((DES_LONG *)tin, _schedule, DES_ENCRYPT); + tout0 = tin[0]; + l2c(tout0, out); + tout1 = tin[1]; + l2c(tout1, out); + } #ifndef CBC_ENC_C__DONT_UPDATE_IV - iv = &(*ivec)[0]; - l2c(tout0,iv); - l2c(tout1,iv); + iv = &(*ivec)[0]; + l2c(tout0, iv); + l2c(tout1, iv); #endif - } - else - { - c2l(iv,xor0); - c2l(iv,xor1); - for (l-=8; l>=0; l-=8) - { - c2l(in,tin0); tin[0]=tin0; - c2l(in,tin1); tin[1]=tin1; - DES_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT); - tout0=tin[0]^xor0; - tout1=tin[1]^xor1; - l2c(tout0,out); - l2c(tout1,out); - xor0=tin0; - xor1=tin1; - } - if (l != -8) - { - c2l(in,tin0); tin[0]=tin0; - c2l(in,tin1); tin[1]=tin1; - DES_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT); - tout0=tin[0]^xor0; - tout1=tin[1]^xor1; - l2cn(tout0,tout1,out,l+8); + } else { + c2l(iv, xor0); + c2l(iv, xor1); + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + tin[0] = tin0; + c2l(in, tin1); + tin[1] = tin1; + DES_encrypt1((DES_LONG *)tin, _schedule, DES_DECRYPT); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2c(tout0, out); + l2c(tout1, out); + xor0 = tin0; + xor1 = tin1; + } + if (l != -8) { + c2l(in, tin0); + tin[0] = tin0; + c2l(in, tin1); + tin[1] = tin1; + DES_encrypt1((DES_LONG *)tin, _schedule, DES_DECRYPT); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2cn(tout0, tout1, out, l + 8); #ifndef CBC_ENC_C__DONT_UPDATE_IV - xor0=tin0; - xor1=tin1; + xor0 = tin0; + xor1 = tin1; #endif - } -#ifndef CBC_ENC_C__DONT_UPDATE_IV - iv = &(*ivec)[0]; - l2c(xor0,iv); - l2c(xor1,iv); + } +#ifndef CBC_ENC_C__DONT_UPDATE_IV + iv = &(*ivec)[0]; + l2c(xor0, iv); + l2c(xor1, iv); #endif - } - tin0=tin1=tout0=tout1=xor0=xor1=0; - tin[0]=tin[1]=0; - } + } + tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; + tin[0] = tin[1] = 0; +}