1/* $FreeBSD: src/sys/crypto/des/des.h,v 1.1.2.3 2002/03/26 10:12:24 ume Exp $ */ 2/* $KAME: des.h,v 1.8 2001/09/10 04:03:57 itojun Exp $ */ 3 4/* lib/des/des.h */ 5/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) 6 * All rights reserved. 7 * 8 * This file is part of an SSL implementation written 9 * by Eric Young (eay@mincom.oz.au). 10 * The implementation was written so as to conform with Netscapes SSL 11 * specification. This library and applications are 12 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE 13 * as long as the following conditions are aheared to. 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. If this code is used in a product, 17 * Eric Young should be given attribution as the author of the parts used. 18 * This can be in the form of a textual message at program startup or 19 * in documentation (online or textual) provided with the package. 20 * 21 * Redistribution and use in source and binary forms, with or without 22 * modification, are permitted provided that the following conditions 23 * are met: 24 * 1. Redistributions of source code must retain the copyright 25 * notice, this list of conditions and the following disclaimer. 26 * 2. Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in the 28 * documentation and/or other materials provided with the distribution. 29 * 3. All advertising materials mentioning features or use of this software 30 * must display the following acknowledgement: 31 * This product includes software developed by Eric Young (eay@mincom.oz.au) 32 * 33 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 36 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 43 * SUCH DAMAGE. 44 * 45 * The licence and distribution terms for any publically available version or 46 * derivative of this code cannot be changed. i.e. this code cannot simply be 47 * copied and put under another distribution licence 48 * [including the GNU Public Licence.] 49 */ 50 51#ifndef HEADER_DES_H 52#define HEADER_DES_H 53 54#ifdef __cplusplus 55extern "C" { 56#endif 57 58/* must be 32bit quantity */ 59#define DES_LONG u_int32_t 60 61typedef unsigned char des_cblock[8]; 62typedef struct des_ks_struct 63 { 64 union { 65 des_cblock cblock; 66 /* make sure things are correct size on machines with 67 * 8 byte longs */ 68 DES_LONG deslong[2]; 69 } ks; 70 int weak_key; 71} des_key_schedule[16]; 72 73#define DES_KEY_SZ (sizeof(des_cblock)) 74#define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 75 76#define DES_ENCRYPT 1 77#define DES_DECRYPT 0 78 79#define DES_CBC_MODE 0 80#define DES_PCBC_MODE 1 81 82extern int des_check_key; /* defaults to false */ 83 84char *des_options(void); 85void des_ecb_encrypt(des_cblock *, des_cblock *, des_key_schedule, int); 86 87void des_encrypt1(DES_LONG *, des_key_schedule, int); 88void des_encrypt2(DES_LONG *, des_key_schedule, int); 89void des_encrypt3(DES_LONG *, des_key_schedule, des_key_schedule, 90 des_key_schedule); 91void des_decrypt3(DES_LONG *, des_key_schedule, des_key_schedule, 92 des_key_schedule); 93 94void des_ecb3_encrypt(des_cblock *, des_cblock *, des_key_schedule, 95 des_key_schedule, des_key_schedule, int); 96 97void des_ncbc_encrypt(const unsigned char *, unsigned char *, long, 98 des_key_schedule, des_cblock *, int); 99 100void des_ede3_cbc_encrypt(const unsigned char *, unsigned char *, long, 101 des_key_schedule, des_key_schedule, 102 des_key_schedule, des_cblock *, int); 103 104void des_set_odd_parity(des_cblock *); 105void des_fixup_key_parity(des_cblock *); 106int des_is_weak_key(des_cblock *); 107int des_set_key(des_cblock *, des_key_schedule); 108int des_key_sched(des_cblock *, des_key_schedule); 109int des_set_key_checked(des_cblock *, des_key_schedule); 110void des_set_key_unchecked(des_cblock *, des_key_schedule); 111int des_check_key_parity(des_cblock *); 112 113#ifdef __cplusplus 114} 115#endif 116 117#endif 118