1 /* crypto/des/xcbc_enc.c */
\r/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
\r * All rights reserved.
\r *
\r * This package is an SSL implementation written
\r * by Eric Young (eay@mincom.oz.au).
\r * The implementation was written so as to conform with Netscapes SSL.
\r *
\r * This library is free for commercial and non-commercial use as long as
\r * the following conditions are aheared to. The following conditions
\r * apply to all code found in this distribution, be it the RC4, RSA,
\r * lhash, DES, etc., code; not just the SSL code. The SSL documentation
\r * included with this distribution is covered by the same copyright terms
\r * except that the holder is Tim Hudson (tjh@mincom.oz.au).
\r *
\r * Copyright remains Eric Young's, and as such any Copyright notices in
\r * the code are not to be removed.
\r * If this package is used in a product, Eric Young should be given attribution
\r * as the author of the parts of the library used.
\r * This can be in the form of a textual message at program startup or
\r * in documentation (online or textual) provided with the package.
\r *
\r * Redistribution and use in source and binary forms, with or without
\r * modification, are permitted provided that the following conditions
\r * are met:
\r * 1. Redistributions of source code must retain the copyright
\r * notice, this list of conditions and the following disclaimer.
\r * 2. Redistributions in binary form must reproduce the above copyright
\r * notice, this list of conditions and the following disclaimer in the
\r * documentation and/or other materials provided with the distribution.
\r * 3. All advertising materials mentioning features or use of this software
\r * must display the following acknowledgement:
\r * "This product includes cryptographic software written by
\r * Eric Young (eay@mincom.oz.au)"
\r * The word 'cryptographic' can be left out if the rouines from the library
\r * being used are not cryptographic related :-).
\r * 4. If you include any Windows specific code (or a derivative thereof) from
\r * the apps directory (application code) you must include an acknowledgement:
\r * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
\r *
\r * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
\r * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\r * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\r * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\r * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\r * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\r * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\r * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\r * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\r * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\r * SUCH DAMAGE.
\r *
\r * The licence and distribution terms for any publically available version or
\r * derivative of this code cannot be changed. i.e. this code cannot simply be
\r * copied and put under another distribution licence
\r * [including the GNU Public Licence.]
\r */
\r\r#include "des_locl.h"
\r\r/* RSA's DESX */
\r\rstatic unsigned char desx_white_in2out[256]={
\r0xBD,0x56,0xEA,0xF2,0xA2,0xF1,0xAC,0x2A,0xB0,0x93,0xD1,0x9C,0x1B,0x33,0xFD,0xD0,
\r0x30,0x04,0xB6,0xDC,0x7D,0xDF,0x32,0x4B,0xF7,0xCB,0x45,0x9B,0x31,0xBB,0x21,0x5A,
\r0x41,0x9F,0xE1,0xD9,0x4A,0x4D,0x9E,0xDA,0xA0,0x68,0x2C,0xC3,0x27,0x5F,0x80,0x36,
\r0x3E,0xEE,0xFB,0x95,0x1A,0xFE,0xCE,0xA8,0x34,0xA9,0x13,0xF0,0xA6,0x3F,0xD8,0x0C,
\r0x78,0x24,0xAF,0x23,0x52,0xC1,0x67,0x17,0xF5,0x66,0x90,0xE7,0xE8,0x07,0xB8,0x60,
\r0x48,0xE6,0x1E,0x53,0xF3,0x92,0xA4,0x72,0x8C,0x08,0x15,0x6E,0x86,0x00,0x84,0xFA,
\r0xF4,0x7F,0x8A,0x42,0x19,0xF6,0xDB,0xCD,0x14,0x8D,0x50,0x12,0xBA,0x3C,0x06,0x4E,
\r0xEC,0xB3,0x35,0x11,0xA1,0x88,0x8E,0x2B,0x94,0x99,0xB7,0x71,0x74,0xD3,0xE4,0xBF,
\r0x3A,0xDE,0x96,0x0E,0xBC,0x0A,0xED,0x77,0xFC,0x37,0x6B,0x03,0x79,0x89,0x62,0xC6,
\r0xD7,0xC0,0xD2,0x7C,0x6A,0x8B,0x22,0xA3,0x5B,0x05,0x5D,0x02,0x75,0xD5,0x61,0xE3,
\r0x18,0x8F,0x55,0x51,0xAD,0x1F,0x0B,0x5E,0x85,0xE5,0xC2,0x57,0x63,0xCA,0x3D,0x6C,
\r0xB4,0xC5,0xCC,0x70,0xB2,0x91,0x59,0x0D,0x47,0x20,0xC8,0x4F,0x58,0xE0,0x01,0xE2,
\r0x16,0x38,0xC4,0x6F,0x3B,0x0F,0x65,0x46,0xBE,0x7E,0x2D,0x7B,0x82,0xF9,0x40,0xB5,
\r0x1D,0x73,0xF8,0xEB,0x26,0xC7,0x87,0x97,0x25,0x54,0xB1,0x28,0xAA,0x98,0x9D,0xA5,
\r0x64,0x6D,0x7A,0xD4,0x10,0x81,0x44,0xEF,0x49,0xD6,0xAE,0x2E,0xDD,0x76,0x5C,0x2F,
\r0xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB,
\r };
\r\rvoid des_xwhite_in2out(des_key,in_white,out_white)
\rdes_cblock (*des_key);
\rdes_cblock (*in_white);
\rdes_cblock (*out_white);
\r {
\r unsigned char *key,*in,*out;
\r int out0,out1;
\r int i;
\r\r key=(unsigned char *)des_key;
\r in=(unsigned char *)in_white;
\r out=(unsigned char *)out_white;
\r\r out[0]=out[1]=out[2]=out[3]=out[4]=out[5]=out[6]=out[7]=0;
\r out0=out1=0;
\r for (i=0; i<8; i++)
\r {
\r out[i]=key[i]^desx_white_in2out[out0^out1];
\r out0=out1;
\r out1=(int)out[i&0x07];
\r }
\r\r out0=out[0];
\r out1=out[i];
\r for (i=0; i<8; i++)
\r {
\r out[i]=in[i]^desx_white_in2out[out0^out1];
\r out0=out1;
\r out1=(int)out[i&0x07];
\r }
\r }
\r\rvoid des_xcbc_encrypt(input, output, length, schedule, ivec, inw,outw,encrypt)
\rdes_cblock (*input);
\rdes_cblock (*output);
\rlong length;
\rdes_key_schedule schedule;
\rdes_cblock (*ivec);
\rdes_cblock (*inw);
\rdes_cblock (*outw);
\rint encrypt;
\r {
\r register DES_LONG tin0,tin1;
\r register DES_LONG tout0,tout1,xor0,xor1;
\r register DES_LONG inW0,inW1,outW0,outW1;
\r register unsigned char *in,*out;
\r register long l=length;
\r DES_LONG tin[2];
\r unsigned char *iv;
\r\r in=(unsigned char *)inw;
\r c2l(in,inW0);
\r c2l(in,inW1);
\r in=(unsigned char *)outw;
\r c2l(in,outW0);
\r c2l(in,outW1);
\r\r in=(unsigned char *)input;
\r out=(unsigned char *)output;
\r iv=(unsigned char *)ivec;
\r\r if (encrypt)
\r {
\r c2l(iv,tout0);
\r c2l(iv,tout1);
\r for (l-=8; l>=0; l-=8)
\r {
\r c2l(in,tin0);
\r c2l(in,tin1);
\r tin0^=tout0^inW0; tin[0]=tin0;
\r tin1^=tout1^inW1; tin[1]=tin1;
\r des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
\r tout0=tin[0]^outW0; l2c(tout0,out);
\r tout1=tin[1]^outW1; l2c(tout1,out);
\r }
\r if (l != -8)
\r {
\r c2ln(in,tin0,tin1,l+8);
\r tin0^=tout0^inW0; tin[0]=tin0;
\r tin1^=tout1^inW1; tin[1]=tin1;
\r des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
\r tout0=tin[0]^outW0; l2c(tout0,out);
\r tout1=tin[1]^outW1; l2c(tout1,out);
\r }
\r iv=(unsigned char *)ivec;
\r l2c(tout0,iv);
\r l2c(tout1,iv);
\r }
\r else
\r {
\r c2l(iv,xor0);
\r c2l(iv,xor1);
\r for (l-=8; l>0; l-=8)
\r {
\r c2l(in,tin0); tin[0]=tin0^outW0;
\r c2l(in,tin1); tin[1]=tin1^outW1;
\r des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
\r tout0=tin[0]^xor0^inW0;
\r tout1=tin[1]^xor1^inW1;
\r l2c(tout0,out);
\r l2c(tout1,out);
\r xor0=tin0;
\r xor1=tin1;
\r }
\r if (l != -8)
\r {
\r c2l(in,tin0); tin[0]=tin0^outW0;
\r c2l(in,tin1); tin[1]=tin1^outW1;
\r des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
\r tout0=tin[0]^xor0^inW0;
\r tout1=tin[1]^xor1^inW1;
\r l2cn(tout0,tout1,out,l+8);
\r xor0=tin0;
\r xor1=tin1;
\r }
\r\r iv=(unsigned char *)ivec;
\r l2c(xor0,iv);
\r l2c(xor1,iv);
\r }
\r tin0=tin1=tout0=tout1=xor0=xor1=0;
\r inW0=inW1=outW0=outW1=0;
\r tin[0]=tin[1]=0;
\r }
\r\r
projects / cyrus-sasl.git / blob