1 | /* $NetBSD: des.h,v 1.8 2009/03/14 14:46:08 dsl Exp $ */ |
2 | /* $KAME: des.h,v 1.7 2000/09/18 20:59:21 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 |
53 | |
54 | #ifdef __cplusplus |
55 | extern "C" { |
56 | #endif |
57 | |
58 | /* must be 32bit quantity */ |
59 | #define DES_LONG u_int32_t |
60 | |
61 | typedef unsigned char des_cblock[8]; |
62 | typedef 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 | |
82 | extern int des_check_key; /* defaults to false */ |
83 | |
84 | char *des_options(void); |
85 | void des_ecb_encrypt(des_cblock *, des_cblock *, |
86 | des_key_schedule, int); |
87 | |
88 | void des_encrypt1(DES_LONG *, des_key_schedule, int); |
89 | void des_encrypt2(DES_LONG *, des_key_schedule, int); |
90 | void des_encrypt3(DES_LONG *, des_key_schedule, des_key_schedule, |
91 | des_key_schedule); |
92 | void des_decrypt3(DES_LONG *, des_key_schedule, des_key_schedule, |
93 | des_key_schedule); |
94 | |
95 | void des_ecb3_encrypt(des_cblock *, des_cblock *, des_key_schedule, |
96 | des_key_schedule, des_key_schedule, int); |
97 | |
98 | void des_ncbc_encrypt(const unsigned char *, unsigned char *, long, |
99 | des_key_schedule, des_cblock *, int); |
100 | |
101 | void des_ede3_cbc_encrypt(const unsigned char *, unsigned char *, long, |
102 | des_key_schedule, des_key_schedule, |
103 | des_key_schedule, des_cblock *, int); |
104 | |
105 | void des_set_odd_parity(des_cblock *); |
106 | void des_fixup_key_parity(des_cblock *); |
107 | int des_is_weak_key(des_cblock *); |
108 | int des_set_key(des_cblock *, des_key_schedule); |
109 | int des_key_sched(des_cblock *, des_key_schedule); |
110 | int des_set_key_checked(des_cblock *, des_key_schedule); |
111 | void des_set_key_unchecked(des_cblock *, des_key_schedule); |
112 | int des_check_key_parity(des_cblock *); |
113 | |
114 | #ifdef __cplusplus |
115 | } |
116 | #endif |
117 | |
118 | #endif |
119 | |