1/*	$OpenBSD: ecb3_enc.c,v 1.3 2013/11/18 18:49:53 brad 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
52void
53des_ecb3_encrypt(des_cblock (*input), des_cblock (*output),
54    des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3,
55    int encrypt)
56{
57	register u_int32_t l0, l1;
58	register unsigned char *in, *out;
59	u_int32_t ll[2];
60
61	in = (unsigned char *) input;
62	out = (unsigned char *) output;
63	c2l(in, l0);
64	c2l(in, l1);
65	IP(l0, l1);
66	ll[0] = l0;
67	ll[1] = l1;
68	des_encrypt2(ll, ks1, encrypt);
69	des_encrypt2(ll, ks2, !encrypt);
70	des_encrypt2(ll, ks3, encrypt);
71	l0 = ll[0];
72	l1 = ll[1];
73	FP(l1, l0);
74	l2c(l0, out);
75	l2c(l1, out);
76}
77