1 /* $NetBSD: esp_rijndael.c,v 1.20 2006/11/16 01:33:45 christos Exp $ */
2 /* $KAME: esp_rijndael.c,v 1.4 2001/03/02 05:53:05 itojun Exp $ */
3
4 /*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: esp_rijndael.c,v 1.20 2006/11/16 01:33:45 christos Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/socket.h>
39 #include <sys/queue.h>
40
41 #include <net/if.h>
42 #include <net/route.h>
43 #include <netinet/in.h>
44
45 #include <netinet6/ipsec.h>
46 #include <netinet6/esp.h>
47 #include <netinet6/esp_rijndael.h>
48
49 #include <crypto/rijndael/rijndael.h>
50
51 #include <net/net_osdep.h>
52
53 size_t
54 esp_rijndael_schedlen(const struct esp_algorithm *algo)
55 {
56
57 return sizeof(rijndael_ctx);
58 }
59
60 int
61 esp_rijndael_schedule(const struct esp_algorithm *algo,
62 struct secasvar *sav)
63 {
64 rijndael_ctx *ctx;
65
66 ctx = (rijndael_ctx *)sav->sched;
67 rijndael_set_key(ctx,
68 (u_char *)_KEYBUF(sav->key_enc), _KEYLEN(sav->key_enc) * 8);
69 return 0;
70 }
71
72 int
73 esp_rijndael_blockdecrypt(const struct esp_algorithm *algo,
74 struct secasvar *sav, u_int8_t *s, u_int8_t *d)
75 {
76 rijndael_ctx *ctx;
77
78 ctx = (rijndael_ctx *)sav->sched;
79 rijndael_decrypt(ctx, s, d);
80 return 0;
81 }
82
83 int
84 esp_rijndael_blockencrypt(const struct esp_algorithm *algo,
85 struct secasvar *sav, u_int8_t *s, u_int8_t *d)
86 {
87 rijndael_ctx *ctx;
88
89 ctx = (rijndael_ctx *)sav->sched;
90 rijndael_encrypt(ctx, s, d);
91 return 0;
92 }
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