/* *	NB - This file is a modified version of one by Eric Young. *  It was modifed by Systemics Ltd (http://www.systemics.com/) *//* Copyright (C) 1995 Eric Young (eay@mincom.oz.au)* All rights reserved.** This file is part of an SSL implementation written* by Eric Young (eay@mincom.oz.au).* The implementation was written so as to conform with Netscapes SSL* specification.  This library and applications are* FREE FOR COMMERCIAL AND NON-COMMERCIAL USE* as long as the following conditions are aheared to.** Copyright remains Eric Young's, and as such any Copyright notices in* the code are not to be removed.  If this code is used in a product,* Eric Young should be given attribution as the author of the parts 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 software developed by Eric Young (eay@mincom.oz.au)** 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.h"#define c2l(c,l)	(l =((unsigned long)(*((c)++))), \			 l|=((unsigned long)(*((c)++)))<< 8, \			 l|=((unsigned long)(*((c)++)))<<16, \			 l|=((unsigned long)(*((c)++)))<<24)#define l2c(l,c)	(*((c)++)=(unsigned char)(((l)    )&0xff), \			 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \			 *((c)++)=(unsigned char)(((l)>>16)&0xff), \			 *((c)++)=(unsigned char)(((l)>>24)&0xff))#define ITERATIONS 16#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\	(a)=(a)^(t)^(t>>(16-(n))))unsigned long des_SPtrans[8][64]={/* nibble 0 */0x00820200, 0x00020000, 0x80800000, 0x80820200,0x00800000, 0x80020200, 0x80020000, 0x80800000,0x80020200, 0x00820200, 0x00820000, 0x80000200,0x80800200, 0x00800000, 0x00000000, 0x80020000,0x00020000, 0x80000000, 0x00800200, 0x00020200,0x80820200, 0x00820000, 0x80000200, 0x00800200,0x80000000, 0x00000200, 0x00020200, 0x80820000,0x00000200, 0x80800200, 0x80820000, 0x00000000,0x00000000, 0x80820200, 0x00800200, 0x80020000,0x00820200, 0x00020000, 0x80000200, 0x00800200,0x80820000, 0x00000200, 0x00020200, 0x80800000,0x80020200, 0x80000000, 0x80800000, 0x00820000,0x80820200, 0x00020200, 0x00820000, 0x80800200,0x00800000, 0x80000200, 0x80020000, 0x00000000,0x00020000, 0x00800000, 0x80800200, 0x00820200,0x80000000, 0x80820000, 0x00000200, 0x80020200,/* nibble 1 */0x10042004, 0x00000000, 0x00042000, 0x10040000,0x10000004, 0x00002004, 0x10002000, 0x00042000,0x00002000, 0x10040004, 0x00000004, 0x10002000,0x00040004, 0x10042000, 0x10040000, 0x00000004,0x00040000, 0x10002004, 0x10040004, 0x00002000,0x00042004, 0x10000000, 0x00000000, 0x00040004,0x10002004, 0x00042004, 0x10042000, 0x10000004,0x10000000, 0x00040000, 0x00002004, 0x10042004,0x00040004, 0x10042000, 0x10002000, 0x00042004,0x10042004, 0x00040004, 0x10000004, 0x00000000,0x10000000, 0x00002004, 0x00040000, 0x10040004,0x00002000, 0x10000000, 0x00042004, 0x10002004,0x10042000, 0x00002000, 0x00000000, 0x10000004,0x00000004, 0x10042004, 0x00042000, 0x10040000,0x10040004, 0x00040000, 0x00002004, 0x10002000,0x10002004, 0x00000004, 0x10040000, 0x00042000,/* nibble 2 */0x41000000, 0x01010040, 0x00000040, 0x41000040,0x40010000, 0x01000000, 0x41000040, 0x00010040,0x01000040, 0x00010000, 0x01010000, 0x40000000,0x41010040, 0x40000040, 0x40000000, 0x41010000,0x00000000, 0x40010000, 0x01010040, 0x00000040,0x40000040, 0x41010040, 0x00010000, 0x41000000,0x41010000, 0x01000040, 0x40010040, 0x01010000,0x00010040, 0x00000000, 0x01000000, 0x40010040,0x01010040, 0x00000040, 0x40000000, 0x00010000,0x40000040, 0x40010000, 0x01010000, 0x41000040,0x00000000, 0x01010040, 0x00010040, 0x41010000,0x40010000, 0x01000000, 0x41010040, 0x40000000,0x40010040, 0x41000000, 0x01000000, 0x41010040,0x00010000, 0x01000040, 0x41000040, 0x00010040,0x01000040, 0x00000000, 0x41010000, 0x40000040,0x41000000, 0x40010040, 0x00000040, 0x01010000,/* nibble 3 */0x00100402, 0x04000400, 0x00000002, 0x04100402,0x00000000, 0x04100000, 0x04000402, 0x00100002,0x04100400, 0x04000002, 0x04000000, 0x00000402,0x04000002, 0x00100402, 0x00100000, 0x04000000,0x04100002, 0x00100400, 0x00000400, 0x00000002,0x00100400, 0x04000402, 0x04100000, 0x00000400,0x00000402, 0x00000000, 0x00100002, 0x04100400,0x04000400, 0x04100002, 0x04100402, 0x00100000,0x04100002, 0x00000402, 0x00100000, 0x04000002,0x00100400, 0x04000400, 0x00000002, 0x04100000,0x04000402, 0x00000000, 0x00000400, 0x00100002,0x00000000, 0x04100002, 0x04100400, 0x00000400,0x04000000, 0x04100402, 0x00100402, 0x00100000,0x04100402, 0x00000002, 0x04000400, 0x00100402,0x00100002, 0x00100400, 0x04100000, 0x04000402,0x00000402, 0x04000000, 0x04000002, 0x04100400,/* nibble 4 */0x02000000, 0x00004000, 0x00000100, 0x02004108,0x02004008, 0x02000100, 0x00004108, 0x02004000,0x00004000, 0x00000008, 0x02000008, 0x00004100,0x02000108, 0x02004008, 0x02004100, 0x00000000,0x00004100, 0x02000000, 0x00004008, 0x00000108,0x02000100, 0x00004108, 0x00000000, 0x02000008,0x00000008, 0x02000108, 0x02004108, 0x00004008,0x02004000, 0x00000100, 0x00000108, 0x02004100,0x02004100, 0x02000108, 0x00004008, 0x02004000,0x00004000, 0x00000008, 0x02000008, 0x02000100,0x02000000, 0x00004100, 0x02004108, 0x00000000,0x00004108, 0x02000000, 0x00000100, 0x00004008,0x02000108, 0x00000100, 0x00000000, 0x02004108,0x02004008, 0x02004100, 0x00000108, 0x00004000,0x00004100, 0x02004008, 0x02000100, 0x00000108,0x00000008, 0x00004108, 0x02004000, 0x02000008,/* nibble 5 */0x20000010, 0x00080010, 0x00000000, 0x20080800,0x00080010, 0x00000800, 0x20000810, 0x00080000,0x00000810, 0x20080810, 0x00080800, 0x20000000,0x20000800, 0x20000010, 0x20080000, 0x00080810,0x00080000, 0x20000810, 0x20080010, 0x00000000,0x00000800, 0x00000010, 0x20080800, 0x20080010,0x20080810, 0x20080000, 0x20000000, 0x00000810,0x00000010, 0x00080800, 0x00080810, 0x20000800,0x00000810, 0x20000000, 0x20000800, 0x00080810,0x20080800, 0x00080010, 0x00000000, 0x20000800,0x20000000, 0x00000800, 0x20080010, 0x00080000,0x00080010, 0x20080810, 0x00080800, 0x00000010,0x20080810, 0x00080800, 0x00080000, 0x20000810,0x20000010, 0x20080000, 0x00080810, 0x00000000,0x00000800, 0x20000010, 0x20000810, 0x20080800,0x20080000, 0x00000810, 0x00000010, 0x20080010,/* nibble 6 */0x00001000, 0x00000080, 0x00400080, 0x00400001,0x00401081, 0x00001001, 0x00001080, 0x00000000,0x00400000, 0x00400081, 0x00000081, 0x00401000,0x00000001, 0x00401080, 0x00401000, 0x00000081,0x00400081, 0x00001000, 0x00001001, 0x00401081,0x00000000, 0x00400080, 0x00400001, 0x00001080,0x00401001, 0x00001081, 0x00401080, 0x00000001,0x00001081, 0x00401001, 0x00000080, 0x00400000,0x00001081, 0x00401000, 0x00401001, 0x00000081,0x00001000, 0x00000080, 0x00400000, 0x00401001,0x00400081, 0x00001081, 0x00001080, 0x00000000,0x00000080, 0x00400001, 0x00000001, 0x00400080,0x00000000, 0x00400081, 0x00400080, 0x00001080,0x00000081, 0x00001000, 0x00401081, 0x00400000,0x00401080, 0x00000001, 0x00001001, 0x00401081,0x00400001, 0x00401080, 0x00401000, 0x00001001,/* nibble 7 */0x08200020, 0x08208000, 0x00008020, 0x00000000,0x08008000, 0x00200020, 0x08200000, 0x08208020,0x00000020, 0x08000000, 0x00208000, 0x00008020,0x00208020, 0x08008020, 0x08000020, 0x08200000,0x00008000, 0x00208020, 0x00200020, 0x08008000,0x08208020, 0x08000020, 0x00000000, 0x00208000,0x08000000, 0x00200000, 0x08008020, 0x08200020,0x00200000, 0x00008000, 0x08208000, 0x00000020,0x00200000, 0x00008000, 0x08000020, 0x08208020,0x00008020, 0x08000000, 0x00000000, 0x00208000,0x08200020, 0x08008020, 0x08008000, 0x00200020,0x08208000, 0x00000020, 0x00200020, 0x08008000,0x08208020, 0x00200000, 0x08200000, 0x08000020,0x00208000, 0x00008020, 0x08008020, 0x08200000,0x00000020, 0x08208000, 0x00208020, 0x00000000,0x08000000, 0x08200020, 0x00008000, 0x00208020};unsigned long des_skb[8][64]={/* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */0x00000000,0x00000010,0x20000000,0x20000010,0x00010000,0x00010010,0x20010000,0x20010010,0x00000800,0x00000810,0x20000800,0x20000810,0x00010800,0x00010810,0x20010800,0x20010810,0x00000020,0x00000030,0x20000020,0x20000030,0x00010020,0x00010030,0x20010020,0x20010030,0x00000820,0x00000830,0x20000820,0x20000830,0x00010820,0x00010830,0x20010820,0x20010830,0x00080000,0x00080010,0x20080000,0x20080010,0x00090000,0x00090010,0x20090000,0x20090010,0x00080800,0x00080810,0x20080800,0x20080810,0x00090800,0x00090810,0x20090800,0x20090810,0x00080020,0x00080030,0x20080020,0x20080030,0x00090020,0x00090030,0x20090020,0x20090030,0x00080820,0x00080830,0x20080820,0x20080830,0x00090820,0x00090830,0x20090820,0x20090830,/* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */0x00000000,0x02000000,0x00002000,0x02002000,0x00200000,0x02200000,0x00202000,0x02202000,0x00000004,0x02000004,0x00002004,0x02002004,0x00200004,0x02200004,0x00202004,0x02202004,0x00000400,0x02000400,0x00002400,0x02002400,0x00200400,0x02200400,0x00202400,0x02202400,0x00000404,0x02000404,0x00002404,0x02002404,0x00200404,0x02200404,0x00202404,0x02202404,0x10000000,0x12000000,0x10002000,0x12002000,0x10200000,0x12200000,0x10202000,0x12202000,0x10000004,0x12000004,0x10002004,0x12002004,0x10200004,0x12200004,0x10202004,0x12202004,0x10000400,0x12000400,0x10002400,0x12002400,0x10200400,0x12200400,0x10202400,0x12202400,0x10000404,0x12000404,0x10002404,0x12002404,0x10200404,0x12200404,0x10202404,0x12202404,/* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */0x00000000,0x00000001,0x00040000,0x00040001,0x01000000,0x01000001,0x01040000,0x01040001,0x00000002,0x00000003,0x00040002,0x00040003,0x01000002,0x01000003,0x01040002,0x01040003,0x00000200,0x00000201,0x00040200,0x00040201,0x01000200,0x01000201,0x01040200,0x01040201,0x00000202,0x00000203,0x00040202,0x00040203,0x01000202,0x01000203,0x01040202,0x01040203,0x08000000,0x08000001,0x08040000,0x08040001,0x09000000,0x09000001,0x09040000,0x09040001,0x08000002,0x08000003,0x08040002,0x08040003,0x09000002,0x09000003,0x09040002,0x09040003,0x08000200,0x08000201,0x08040200,0x08040201,0x09000200,0x09000201,0x09040200,0x09040201,0x08000202,0x08000203,0x08040202,0x08040203,0x09000202,0x09000203,0x09040202,0x09040203,/* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */0x00000000,0x00100000,0x00000100,0x00100100,0x00000008,0x00100008,0x00000108,0x00100108,0x00001000,0x00101000,0x00001100,0x00101100,0x00001008,0x00101008,0x00001108,0x00101108,0x04000000,0x04100000,0x04000100,0x04100100,0x04000008,0x04100008,0x04000108,0x04100108,0x04001000,0x04101000,0x04001100,0x04101100,0x04001008,0x04101008,0x04001108,0x04101108,0x00020000,0x00120000,0x00020100,0x00120100,0x00020008,0x00120008,0x00020108,0x00120108,0x00021000,0x00121000,0x00021100,0x00121100,0x00021008,0x00121008,0x00021108,0x00121108,0x04020000,0x04120000,0x04020100,0x04120100,0x04020008,0x04120008,0x04020108,0x04120108,0x04021000,0x04121000,0x04021100,0x04121100,0x04021008,0x04121008,0x04021108,0x04121108,/* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */0x00000000,0x10000000,0x00010000,0x10010000,0x00000004,0x10000004,0x00010004,0x10010004,0x20000000,0x30000000,0x20010000,0x30010000,0x20000004,0x30000004,0x20010004,0x30010004,0x00100000,0x10100000,0x00110000,0x10110000,0x00100004,0x10100004,0x00110004,0x10110004,0x20100000,0x30100000,0x20110000,0x30110000,0x20100004,0x30100004,0x20110004,0x30110004,