des_opts.c

本软件是根据DES加密算法

/* crypto/des/des_opts.c */
/* Copyright (C) 1995-1997 Eric Young ([e-mail])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([e-mail]).
 * 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 ([e-mail]).
 * 
 * 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 ([e-mail])"
 *    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 ([e-mail])"
 * 
 * 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.]
 */

/* define PART1, PART2, PART3 or PART4 to build only with a few of the options.
 * This is for machines with 64k code segment size restrictions. */

#ifndef MSDOS
#define TIMES
#endif

#include <stdio.h>
#ifndef MSDOS
#include <unistd.h>
#else
#include <io.h>
extern void exit();
#endif
#include <signal.h>
#ifndef VMS
#ifndef _IRIX
#include <time.h>
#endif
#ifdef TIMES
#include <sys/types.h>
#include <sys/times.h>
#endif
#else /* VMS */
#include <types.h>
struct tms {
	time_t tms_utime;
	time_t tms_stime;
	time_t tms_uchild;	/* I dunno...  */
	time_t tms_uchildsys;	/* so these names are a guess :-) */
	}
#endif
#ifndef TIMES
#include <sys/timeb.h>
#endif

#ifdef sun
#include <limits.h>
#include <sys/param.h>
#endif

#include "des.h"
#include "spr.h"

#define DES_DEFAULT_OPTIONS

#if !defined(PART1) && !defined(PART2) && !defined(PART3) && !defined(PART4)
#define PART1
#define PART2
#define PART3
#define PART4
#endif

#ifdef PART1

#undef DES_UNROLL
#undef DES_RISC1
#undef DES_RISC2
#undef DES_PTR
#undef D_ENCRYPT
#define des_encrypt  des_encrypt_u4_cisc_idx
#define des_encrypt2 des_encrypt2_u4_cisc_idx
#define des_encrypt3 des_encrypt3_u4_cisc_idx
#define des_decrypt3 des_decrypt3_u4_cisc_idx
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#define DES_UNROLL
#undef DES_RISC1
#undef DES_RISC2
#undef DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u16_cisc_idx
#define des_encrypt2 des_encrypt2_u16_cisc_idx
#define des_encrypt3 des_encrypt3_u16_cisc_idx
#define des_decrypt3 des_decrypt3_u16_cisc_idx
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#undef DES_UNROLL
#define DES_RISC1
#undef DES_RISC2
#undef DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u4_risc1_idx
#define des_encrypt2 des_encrypt2_u4_risc1_idx
#define des_encrypt3 des_encrypt3_u4_risc1_idx
#define des_decrypt3 des_decrypt3_u4_risc1_idx
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#endif

#ifdef PART2

#undef DES_UNROLL
#undef DES_RISC1
#define DES_RISC2
#undef DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u4_risc2_idx
#define des_encrypt2 des_encrypt2_u4_risc2_idx
#define des_encrypt3 des_encrypt3_u4_risc2_idx
#define des_decrypt3 des_decrypt3_u4_risc2_idx
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#define DES_UNROLL
#define DES_RISC1
#undef DES_RISC2
#undef DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u16_risc1_idx
#define des_encrypt2 des_encrypt2_u16_risc1_idx
#define des_encrypt3 des_encrypt3_u16_risc1_idx
#define des_decrypt3 des_decrypt3_u16_risc1_idx
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#define DES_UNROLL
#undef DES_RISC1
#define DES_RISC2
#undef DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u16_risc2_idx
#define des_encrypt2 des_encrypt2_u16_risc2_idx
#define des_encrypt3 des_encrypt3_u16_risc2_idx
#define des_decrypt3 des_decrypt3_u16_risc2_idx
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#endif

#ifdef PART3

#undef DES_UNROLL
#undef DES_RISC1
#undef DES_RISC2
#define DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u4_cisc_ptr
#define des_encrypt2 des_encrypt2_u4_cisc_ptr
#define des_encrypt3 des_encrypt3_u4_cisc_ptr
#define des_decrypt3 des_decrypt3_u4_cisc_ptr
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#define DES_UNROLL
#undef DES_RISC1
#undef DES_RISC2
#define DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u16_cisc_ptr
#define des_encrypt2 des_encrypt2_u16_cisc_ptr
#define des_encrypt3 des_encrypt3_u16_cisc_ptr
#define des_decrypt3 des_decrypt3_u16_cisc_ptr
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#undef DES_UNROLL
#define DES_RISC1
#undef DES_RISC2
#define DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u4_risc1_ptr
#define des_encrypt2 des_encrypt2_u4_risc1_ptr
#define des_encrypt3 des_encrypt3_u4_risc1_ptr
#define des_decrypt3 des_decrypt3_u4_risc1_ptr
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#endif

#ifdef PART4

#undef DES_UNROLL
#undef DES_RISC1
#define DES_RISC2
#define DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u4_risc2_ptr
#define des_encrypt2 des_encrypt2_u4_risc2_ptr
#define des_encrypt3 des_encrypt3_u4_risc2_ptr
#define des_decrypt3 des_decrypt3_u4_risc2_ptr
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#define DES_UNROLL
#define DES_RISC1
#undef DES_RISC2
#define DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u16_risc1_ptr
#define des_encrypt2 des_encrypt2_u16_risc1_ptr
#define des_encrypt3 des_encrypt3_u16_risc1_ptr
#define des_decrypt3 des_decrypt3_u16_risc1_ptr
#undef HEADER_DES_LOCL_H
#include "des_enc.c"

#define DES_UNROLL
#undef DES_RISC1
#define DES_RISC2
#define DES_PTR
#undef D_ENCRYPT
#undef des_encrypt
#undef des_encrypt2
#undef des_encrypt3
#undef des_decrypt3
#define des_encrypt  des_encrypt_u16_risc2_ptr
#define des_encrypt2 des_encrypt2_u16_risc2_ptr
#define des_encrypt3 des_encrypt3_u16_risc2_ptr
#define des_decrypt3 des_decrypt3_u16_risc2_ptr
#undef HEADER_DES_LOCL_H