e_camellia.c revision 296465 
1/* crypto/evp/e_camellia.c -*- mode:C; c-file-style: "eay" -*- */
2/* ====================================================================
3 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in
14 *    the documentation and/or other materials provided with the
15 *    distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 *    software must display the following acknowledgment:
19 *    "This product includes software developed by the OpenSSL Project
20 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 *    endorse or promote products derived from this software without
24 *    prior written permission. For written permission, please contact
25 *    openssl-core@openssl.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 *    nor may "OpenSSL" appear in their names without prior written
29 *    permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 *    acknowledgment:
33 *    "This product includes software developed by the OpenSSL Project
34 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com).  This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55
56#include <openssl/opensslconf.h>
57#ifndef OPENSSL_NO_CAMELLIA
58# include <openssl/evp.h>
59# include <openssl/err.h>
60# include <string.h>
61# include <assert.h>
62# include <openssl/camellia.h>
63# include "evp_locl.h"
64
65static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
66                             const unsigned char *iv, int enc);
67
68/* Camellia subkey Structure */
69typedef struct {
70    CAMELLIA_KEY ks;
71} EVP_CAMELLIA_KEY;
72
73/* Attribute operation for Camellia */
74# define data(ctx)       EVP_C_DATA(EVP_CAMELLIA_KEY,ctx)
75
76IMPLEMENT_BLOCK_CIPHER(camellia_128, ks, Camellia, EVP_CAMELLIA_KEY,
77                       NID_camellia_128, 16, 16, 16, 128,
78                       0, camellia_init_key, NULL,
79                       EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
80    IMPLEMENT_BLOCK_CIPHER(camellia_192, ks, Camellia, EVP_CAMELLIA_KEY,
81                       NID_camellia_192, 16, 24, 16, 128,
82                       0, camellia_init_key, NULL,
83                       EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
84    IMPLEMENT_BLOCK_CIPHER(camellia_256, ks, Camellia, EVP_CAMELLIA_KEY,
85                       NID_camellia_256, 16, 32, 16, 128,
86                       0, camellia_init_key, NULL,
87                       EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
88# define IMPLEMENT_CAMELLIA_CFBR(ksize,cbits)    IMPLEMENT_CFBR(camellia,Camellia,EVP_CAMELLIA_KEY,ks,ksize,cbits,16,0)
89    IMPLEMENT_CAMELLIA_CFBR(128, 1)
90    IMPLEMENT_CAMELLIA_CFBR(192, 1)
91    IMPLEMENT_CAMELLIA_CFBR(256, 1)
92
93    IMPLEMENT_CAMELLIA_CFBR(128, 8)
94    IMPLEMENT_CAMELLIA_CFBR(192, 8)
95    IMPLEMENT_CAMELLIA_CFBR(256, 8)
96
97/* The subkey for Camellia is generated. */
98static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
99                             const unsigned char *iv, int enc)
100{
101    int ret;
102
103    ret = Camellia_set_key(key, ctx->key_len * 8, ctx->cipher_data);
104
105    if (ret < 0) {
106        EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
107        return 0;
108    }
109
110    return 1;
111}
112
113#else
114
115# ifdef PEDANTIC
116static void *dummy = &dummy;
117# endif
118
119#endif
120