1 /* $FreeBSD: src/sys/crypto/des/des.h,v 1.1.2.3 2002/03/26 10:12:24 ume Exp $ */ 2 /* $DragonFly: src/sys/crypto/des/des.h,v 1.2 2003/06/17 04:28:20 dillon Exp $ */ 3 /* $KAME: des.h,v 1.8 2001/09/10 04:03:57 itojun Exp $ */ 4 5 /* lib/des/des.h */ 6 /* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) 7 * All rights reserved. 8 * 9 * This file is part of an SSL implementation written 10 * by Eric Young (eay@mincom.oz.au). 11 * The implementation was written so as to conform with Netscapes SSL 12 * specification. This library and applications are 13 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE 14 * as long as the following conditions are aheared to. 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. If this code is used in a product, 18 * Eric Young should be given attribution as the author of the parts used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * This product includes software developed by Eric Young (eay@mincom.oz.au) 33 * 34 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 35 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 36 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 37 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 39 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 40 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 42 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 43 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 44 * SUCH DAMAGE. 45 * 46 * The licence and distribution terms for any publically available version or 47 * derivative of this code cannot be changed. i.e. this code cannot simply be 48 * copied and put under another distribution licence 49 * [including the GNU Public Licence.] 50 */ 51 52 #ifndef HEADER_DES_H 53 #define HEADER_DES_H 54 55 #ifdef __cplusplus 56 extern "C" { 57 #endif 58 59 /* must be 32bit quantity */ 60 #define DES_LONG u_int32_t 61 62 typedef unsigned char des_cblock[8]; 63 typedef struct des_ks_struct 64 { 65 union { 66 des_cblock cblock; 67 /* make sure things are correct size on machines with 68 * 8 byte longs */ 69 DES_LONG deslong[2]; 70 } ks; 71 int weak_key; 72 } des_key_schedule[16]; 73 74 #define DES_KEY_SZ (sizeof(des_cblock)) 75 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 76 77 #define DES_ENCRYPT 1 78 #define DES_DECRYPT 0 79 80 #define DES_CBC_MODE 0 81 #define DES_PCBC_MODE 1 82 83 extern int des_check_key; /* defaults to false */ 84 85 char *des_options __P((void)); 86 void des_ecb_encrypt __P((des_cblock *, des_cblock *, 87 des_key_schedule, int)); 88 89 void des_encrypt1 __P((DES_LONG *, des_key_schedule, int)); 90 void des_encrypt2 __P((DES_LONG *, des_key_schedule, int)); 91 void des_encrypt3 __P((DES_LONG *, des_key_schedule, des_key_schedule, 92 des_key_schedule)); 93 void des_decrypt3 __P((DES_LONG *, des_key_schedule, des_key_schedule, 94 des_key_schedule)); 95 96 void des_ecb3_encrypt __P((des_cblock *, des_cblock *, des_key_schedule, 97 des_key_schedule, des_key_schedule, int)); 98 99 void des_ncbc_encrypt __P((const unsigned char *, unsigned char *, long, 100 des_key_schedule, des_cblock *, int)); 101 102 void des_ede3_cbc_encrypt(const unsigned char *, unsigned char *, long, 103 des_key_schedule, des_key_schedule, 104 des_key_schedule, des_cblock *, int); 105 106 void des_set_odd_parity __P((des_cblock *)); 107 void des_fixup_key_parity __P((des_cblock *)); 108 int des_is_weak_key __P((des_cblock *)); 109 int des_set_key __P((des_cblock *, des_key_schedule)); 110 int des_key_sched __P((des_cblock *, des_key_schedule)); 111 int des_set_key_checked __P((des_cblock *, des_key_schedule)); 112 void des_set_key_unchecked __P((des_cblock *, des_key_schedule)); 113 int des_check_key_parity __P((des_cblock *)); 114 115 #ifdef __cplusplus 116 } 117 #endif 118 119 #endif 120