-/* crypto/des/xcbc_enc.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 "des_locl.h"
/* RSA's DESX */
-static unsigned char desx_white_in2out[256]={
-0xBD,0x56,0xEA,0xF2,0xA2,0xF1,0xAC,0x2A,0xB0,0x93,0xD1,0x9C,0x1B,0x33,0xFD,0xD0,
-0x30,0x04,0xB6,0xDC,0x7D,0xDF,0x32,0x4B,0xF7,0xCB,0x45,0x9B,0x31,0xBB,0x21,0x5A,
-0x41,0x9F,0xE1,0xD9,0x4A,0x4D,0x9E,0xDA,0xA0,0x68,0x2C,0xC3,0x27,0x5F,0x80,0x36,
-0x3E,0xEE,0xFB,0x95,0x1A,0xFE,0xCE,0xA8,0x34,0xA9,0x13,0xF0,0xA6,0x3F,0xD8,0x0C,
-0x78,0x24,0xAF,0x23,0x52,0xC1,0x67,0x17,0xF5,0x66,0x90,0xE7,0xE8,0x07,0xB8,0x60,
-0x48,0xE6,0x1E,0x53,0xF3,0x92,0xA4,0x72,0x8C,0x08,0x15,0x6E,0x86,0x00,0x84,0xFA,
-0xF4,0x7F,0x8A,0x42,0x19,0xF6,0xDB,0xCD,0x14,0x8D,0x50,0x12,0xBA,0x3C,0x06,0x4E,
-0xEC,0xB3,0x35,0x11,0xA1,0x88,0x8E,0x2B,0x94,0x99,0xB7,0x71,0x74,0xD3,0xE4,0xBF,
-0x3A,0xDE,0x96,0x0E,0xBC,0x0A,0xED,0x77,0xFC,0x37,0x6B,0x03,0x79,0x89,0x62,0xC6,
-0xD7,0xC0,0xD2,0x7C,0x6A,0x8B,0x22,0xA3,0x5B,0x05,0x5D,0x02,0x75,0xD5,0x61,0xE3,
-0x18,0x8F,0x55,0x51,0xAD,0x1F,0x0B,0x5E,0x85,0xE5,0xC2,0x57,0x63,0xCA,0x3D,0x6C,
-0xB4,0xC5,0xCC,0x70,0xB2,0x91,0x59,0x0D,0x47,0x20,0xC8,0x4F,0x58,0xE0,0x01,0xE2,
-0x16,0x38,0xC4,0x6F,0x3B,0x0F,0x65,0x46,0xBE,0x7E,0x2D,0x7B,0x82,0xF9,0x40,0xB5,
-0x1D,0x73,0xF8,0xEB,0x26,0xC7,0x87,0x97,0x25,0x54,0xB1,0x28,0xAA,0x98,0x9D,0xA5,
-0x64,0x6D,0x7A,0xD4,0x10,0x81,0x44,0xEF,0x49,0xD6,0xAE,0x2E,0xDD,0x76,0x5C,0x2F,
-0xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB,
- };
+void DES_xcbc_encrypt(const unsigned char *in, unsigned char *out,
+ long length, DES_key_schedule *schedule,
+ DES_cblock *ivec, const_DES_cblock *inw,
+ const_DES_cblock *outw, int enc)
+{
+ register DES_LONG tin0, tin1;
+ register DES_LONG tout0, tout1, xor0, xor1;
+ register DES_LONG inW0, inW1, outW0, outW1;
+ register const unsigned char *in2;
+ register long l = length;
+ DES_LONG tin[2];
+ unsigned char *iv;
-void des_xwhite_in2out(const_des_cblock *des_key, const_des_cblock *in_white,
- des_cblock *out_white)
- {
- int out0,out1;
- int i;
- const unsigned char *key = &(*des_key)[0];
- const unsigned char *in = &(*in_white)[0];
- unsigned char *out = &(*out_white)[0];
+ in2 = &(*inw)[0];
+ c2l(in2, inW0);
+ c2l(in2, inW1);
+ in2 = &(*outw)[0];
+ c2l(in2, outW0);
+ c2l(in2, outW1);
- out[0]=out[1]=out[2]=out[3]=out[4]=out[5]=out[6]=out[7]=0;
- out0=out1=0;
- for (i=0; i<8; i++)
- {
- out[i]=key[i]^desx_white_in2out[out0^out1];
- out0=out1;
- out1=(int)out[i&0x07];
- }
+ iv = &(*ivec)[0];
- out0=out[0];
- out1=out[i];
- for (i=0; i<8; i++)
- {
- out[i]=in[i]^desx_white_in2out[out0^out1];
- out0=out1;
- out1=(int)out[i&0x07];
- }
- }
-
-void des_xcbc_encrypt(const unsigned char *in, unsigned char *out,
- long length, des_key_schedule schedule, des_cblock *ivec,
- const_des_cblock *inw, const_des_cblock *outw, int enc)
- {
- register DES_LONG tin0,tin1;
- register DES_LONG tout0,tout1,xor0,xor1;
- register DES_LONG inW0,inW1,outW0,outW1;
- register const unsigned char *in2;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *iv;
-
- in2 = &(*inw)[0];
- c2l(in2,inW0);
- c2l(in2,inW1);
- in2 = &(*outw)[0];
- c2l(in2,outW0);
- c2l(in2,outW1);
-
- 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^inW0; tin[0]=tin0;
- tin1^=tout1^inW1; tin[1]=tin1;
- des_encrypt1(tin,schedule,DES_ENCRYPT);
- tout0=tin[0]^outW0; l2c(tout0,out);
- tout1=tin[1]^outW1; l2c(tout1,out);
- }
- if (l != -8)
- {
- c2ln(in,tin0,tin1,l+8);
- tin0^=tout0^inW0; tin[0]=tin0;
- tin1^=tout1^inW1; tin[1]=tin1;
- des_encrypt1(tin,schedule,DES_ENCRYPT);
- tout0=tin[0]^outW0; l2c(tout0,out);
- tout1=tin[1]^outW1; l2c(tout1,out);
- }
- iv = &(*ivec)[0];
- l2c(tout0,iv);
- l2c(tout1,iv);
- }
- else
- {
- c2l(iv,xor0);
- c2l(iv,xor1);
- for (l-=8; l>0; l-=8)
- {
- c2l(in,tin0); tin[0]=tin0^outW0;
- c2l(in,tin1); tin[1]=tin1^outW1;
- des_encrypt1(tin,schedule,DES_DECRYPT);
- tout0=tin[0]^xor0^inW0;
- tout1=tin[1]^xor1^inW1;
- l2c(tout0,out);
- l2c(tout1,out);
- xor0=tin0;
- xor1=tin1;
- }
- if (l != -8)
- {
- c2l(in,tin0); tin[0]=tin0^outW0;
- c2l(in,tin1); tin[1]=tin1^outW1;
- des_encrypt1(tin,schedule,DES_DECRYPT);
- tout0=tin[0]^xor0^inW0;
- tout1=tin[1]^xor1^inW1;
- l2cn(tout0,tout1,out,l+8);
- xor0=tin0;
- xor1=tin1;
- }
-
- iv = &(*ivec)[0];
- l2c(xor0,iv);
- l2c(xor1,iv);
- }
- tin0=tin1=tout0=tout1=xor0=xor1=0;
- inW0=inW1=outW0=outW1=0;
- tin[0]=tin[1]=0;
- }
+ if (enc) {
+ c2l(iv, tout0);
+ c2l(iv, tout1);
+ for (l -= 8; l >= 0; l -= 8) {
+ c2l(in, tin0);
+ c2l(in, tin1);
+ tin0 ^= tout0 ^ inW0;
+ tin[0] = tin0;
+ tin1 ^= tout1 ^ inW1;
+ tin[1] = tin1;
+ DES_encrypt1(tin, schedule, DES_ENCRYPT);
+ tout0 = tin[0] ^ outW0;
+ l2c(tout0, out);
+ tout1 = tin[1] ^ outW1;
+ l2c(tout1, out);
+ }
+ if (l != -8) {
+ c2ln(in, tin0, tin1, l + 8);
+ tin0 ^= tout0 ^ inW0;
+ tin[0] = tin0;
+ tin1 ^= tout1 ^ inW1;
+ tin[1] = tin1;
+ DES_encrypt1(tin, schedule, DES_ENCRYPT);
+ tout0 = tin[0] ^ outW0;
+ l2c(tout0, out);
+ tout1 = tin[1] ^ outW1;
+ l2c(tout1, out);
+ }
+ iv = &(*ivec)[0];
+ l2c(tout0, iv);
+ l2c(tout1, iv);
+ } else {
+ c2l(iv, xor0);
+ c2l(iv, xor1);
+ for (l -= 8; l > 0; l -= 8) {
+ c2l(in, tin0);
+ tin[0] = tin0 ^ outW0;
+ c2l(in, tin1);
+ tin[1] = tin1 ^ outW1;
+ DES_encrypt1(tin, schedule, DES_DECRYPT);
+ tout0 = tin[0] ^ xor0 ^ inW0;
+ tout1 = tin[1] ^ xor1 ^ inW1;
+ l2c(tout0, out);
+ l2c(tout1, out);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ if (l != -8) {
+ c2l(in, tin0);
+ tin[0] = tin0 ^ outW0;
+ c2l(in, tin1);
+ tin[1] = tin1 ^ outW1;
+ DES_encrypt1(tin, schedule, DES_DECRYPT);
+ tout0 = tin[0] ^ xor0 ^ inW0;
+ tout1 = tin[1] ^ xor1 ^ inW1;
+ l2cn(tout0, tout1, out, l + 8);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ iv = &(*ivec)[0];
+ l2c(xor0, iv);
+ l2c(xor1, iv);
+ }
+ tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
+ inW0 = inW1 = outW0 = outW1 = 0;
+ tin[0] = tin[1] = 0;
+}
projects / openssl.git / blobdiff