blob: a95fa674781efb0009e8fc858092b845988ae44f [file] [log] [blame]
Damien Miller4f0fe682004-01-27 21:19:21 +11001/*
2 * Copyright (c) 2004 The OpenBSD project
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "includes.h"
18#include <openssl/evp.h>
19
Damien Miller94cf4c82005-07-17 17:04:47 +100020RCSID("$Id: cipher-acss.c,v 1.3 2005/07/17 07:04:47 djm Exp $");
Damien Miller4f0fe682004-01-27 21:19:21 +110021
Darren Tucker6977fe72004-02-06 15:26:10 +110022#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)
Damien Miller4f0fe682004-01-27 21:19:21 +110023
24#include "acss.h"
25
26#define data(ctx) ((EVP_ACSS_KEY *)(ctx)->cipher_data)
27
28typedef struct {
29 ACSS_KEY ks;
30} EVP_ACSS_KEY;
31
32#define EVP_CTRL_SET_ACSS_MODE 0xff06
33#define EVP_CTRL_SET_ACSS_SUBKEY 0xff07
34
35static int
Damien Miller94cf4c82005-07-17 17:04:47 +100036acss_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
Damien Miller4f0fe682004-01-27 21:19:21 +110037 const unsigned char *iv, int enc)
38{
39 acss_setkey(&data(ctx)->ks,key,enc,ACSS_DATA);
40 return 1;
41}
42
43static int
Damien Miller94cf4c82005-07-17 17:04:47 +100044acss_ciph(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in,
Damien Miller4f0fe682004-01-27 21:19:21 +110045 unsigned int inl)
46{
47 acss(&data(ctx)->ks,inl,in,out);
48 return 1;
49}
50
51static int
52acss_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
53{
54 switch(type) {
55 case EVP_CTRL_SET_ACSS_MODE:
56 data(ctx)->ks.mode = arg;
57 return 1;
58 case EVP_CTRL_SET_ACSS_SUBKEY:
59 acss_setsubkey(&data(ctx)->ks,(unsigned char *)ptr);
60 return 1;
61 default:
62 return -1;
63 }
64}
65
66const EVP_CIPHER *
67evp_acss(void)
68{
69 static EVP_CIPHER acss_cipher;
70
71 memset(&acss_cipher, 0, sizeof(EVP_CIPHER));
72
73 acss_cipher.nid = NID_undef;
74 acss_cipher.block_size = 1;
75 acss_cipher.key_len = 5;
76 acss_cipher.init = acss_init_key;
77 acss_cipher.do_cipher = acss_ciph;
78 acss_cipher.ctx_size = sizeof(EVP_ACSS_KEY);
79 acss_cipher.ctrl = acss_ctrl;
80
81 return (&acss_cipher);
82}
83#endif
84