1/* crypto/evp/e_idea.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
| 1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
|
4 *
| 3 *
|
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
| 4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
|
57 */
58
59#include <stdio.h>
| 8 */
9
10#include <stdio.h>
|
60#include "cryptlib.h"
| 11#include "internal/cryptlib.h"
|
61
62#ifndef OPENSSL_NO_IDEA
63# include <openssl/evp.h>
64# include <openssl/objects.h>
| 12
13#ifndef OPENSSL_NO_IDEA
14# include <openssl/evp.h>
15# include <openssl/objects.h>
|
65# include "evp_locl.h"
| 16# include "internal/evp_int.h"
|
66# include <openssl/idea.h>
67
| 17# include <openssl/idea.h>
18
|
| 19/* Can't use IMPLEMENT_BLOCK_CIPHER because IDEA_ecb_encrypt is different */
20
21typedef struct {
22 IDEA_KEY_SCHEDULE ks;
23} EVP_IDEA_KEY;
24
|
68static int idea_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
69 const unsigned char *iv, int enc);
70
71/*
| 25static int idea_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
26 const unsigned char *iv, int enc);
27
28/*
|
72 * NB idea_ecb_encrypt doesn't take an 'encrypt' argument so we treat it as a
| 29 * NB IDEA_ecb_encrypt doesn't take an 'encrypt' argument so we treat it as a
|
73 * special case
74 */
75
76static int idea_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
77 const unsigned char *in, size_t inl)
78{
79 BLOCK_CIPHER_ecb_loop()
| 30 * special case
31 */
32
33static int idea_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
34 const unsigned char *in, size_t inl)
35{
36 BLOCK_CIPHER_ecb_loop()
|
80 idea_ecb_encrypt(in + i, out + i, ctx->cipher_data);
| 37 IDEA_ecb_encrypt(in + i, out + i, &EVP_C_DATA(EVP_IDEA_KEY,ctx)->ks);
|
81 return 1;
82}
83
| 38 return 1;
39}
40
|
84/* Can't use IMPLEMENT_BLOCK_CIPHER because idea_ecb_encrypt is different */
| 41BLOCK_CIPHER_func_cbc(idea, IDEA, EVP_IDEA_KEY, ks)
42BLOCK_CIPHER_func_ofb(idea, IDEA, 64, EVP_IDEA_KEY, ks)
43BLOCK_CIPHER_func_cfb(idea, IDEA, 64, EVP_IDEA_KEY, ks)
|
85
| 44
|
86typedef struct {
87 IDEA_KEY_SCHEDULE ks;
88} EVP_IDEA_KEY;
89
90BLOCK_CIPHER_func_cbc(idea, idea, EVP_IDEA_KEY, ks)
91 BLOCK_CIPHER_func_ofb(idea, idea, 64, EVP_IDEA_KEY, ks)
92 BLOCK_CIPHER_func_cfb(idea, idea, 64, EVP_IDEA_KEY, ks)
93
94 BLOCK_CIPHER_defs(idea, IDEA_KEY_SCHEDULE, NID_idea, 8, 16, 8, 64,
| 45BLOCK_CIPHER_defs(idea, IDEA_KEY_SCHEDULE, NID_idea, 8, 16, 8, 64,
|
95 0, idea_init_key, NULL,
96 EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
97
98static int idea_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
99 const unsigned char *iv, int enc)
100{
101 if (!enc) {
102 if (EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_OFB_MODE)
103 enc = 1;
104 else if (EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_CFB_MODE)
105 enc = 1;
106 }
107 if (enc)
| 46 0, idea_init_key, NULL,
47 EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
48
49static int idea_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
50 const unsigned char *iv, int enc)
51{
52 if (!enc) {
53 if (EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_OFB_MODE)
54 enc = 1;
55 else if (EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_CFB_MODE)
56 enc = 1;
57 }
58 if (enc)
|
108 idea_set_encrypt_key(key, ctx->cipher_data);
| 59 IDEA_set_encrypt_key(key, &EVP_C_DATA(EVP_IDEA_KEY,ctx)->ks);
|
109 else {
110 IDEA_KEY_SCHEDULE tmp;
111
| 60 else {
61 IDEA_KEY_SCHEDULE tmp;
62
|
112 idea_set_encrypt_key(key, &tmp);
113 idea_set_decrypt_key(&tmp, ctx->cipher_data);
| 63 IDEA_set_encrypt_key(key, &tmp);
64 IDEA_set_decrypt_key(&tmp, &EVP_C_DATA(EVP_IDEA_KEY,ctx)->ks);
|
114 OPENSSL_cleanse((unsigned char *)&tmp, sizeof(IDEA_KEY_SCHEDULE));
115 }
116 return 1;
117}
118
119#endif
| 65 OPENSSL_cleanse((unsigned char *)&tmp, sizeof(IDEA_KEY_SCHEDULE));
66 }
67 return 1;
68}
69
70#endif
|