1 /* $OpenBSD: ecb3_enc.c,v 1.2 2002/10/27 13:24:26 miod Exp $ */
2
3 /* lib/des/ecb3_enc.c */
4 /* Copyright (C) 1995 Eric Young (eay@mincom.oz.au)
5 * All rights reserved.
6 *
7 * This file is part of an SSL implementation written
8 * by Eric Young (eay@mincom.oz.au).
9 * The implementation was written so as to conform with Netscapes SSL
10 * specification. This library and applications are
11 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
12 * as long as the following conditions are aheared to.
13 *
14 * Copyright remains Eric Young's, and as such any Copyright notices in
15 * the code are not to be removed. If this code is used in a product,
16 * Eric Young should be given attribution as the author of the parts used.
17 * This can be in the form of a textual message at program startup or
18 * in documentation (online or textual) provided with the package.
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 * 3. All advertising materials mentioning features or use of this software
29 * must display the following acknowledgement:
30 * This product includes software developed by Eric Young (eay@mincom.oz.au)
31 *
32 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 * SUCH DAMAGE.
43 *
44 * The licence and distribution terms for any publically available version or
45 * derivative of this code cannot be changed. i.e. this code cannot simply be
46 * copied and put under another distribution licence
47 * [including the GNU Public Licence.]
48 */
49
50 #include "des_locl.h"
51
52 void des_ecb3_encrypt(input, output, ks1, ks2, ks3, encrypt)
53 des_cblock (*input);
54 des_cblock (*output);
55 des_key_schedule ks1;
56 des_key_schedule ks2;
57 des_key_schedule ks3;
58 int encrypt;
59 {
60 register u_int32_t l0,l1;
61 register unsigned char *in,*out;
62 u_int32_t ll[2];
63
64 in=(unsigned char *)input;
65 out=(unsigned char *)output;
66 c2l(in,l0);
67 c2l(in,l1);
68 IP(l0,l1);
69 ll[0]=l0;
70 ll[1]=l1;
71 des_encrypt2(ll,ks1,encrypt);
72 des_encrypt2(ll,ks2,!encrypt);
73 des_encrypt2(ll,ks3,encrypt);
74 l0=ll[0];
75 l1=ll[1];
76 FP(l1,l0);
77 l2c(l0,out);
78 l2c(l1,out);
79 }