1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#include <openssl/cipher.h>
58
59#include <assert.h>
60#include <string.h>
61
62#include <openssl/err.h>
63#include <openssl/mem.h>
64#include <openssl/nid.h>
65
66#include "internal.h"
67#include "../internal.h"
68
69
70const EVP_CIPHER *EVP_get_cipherbynid(int nid) {
71 switch (nid) {
72 case NID_rc2_cbc:
73 return EVP_rc2_cbc();
74 case NID_rc2_40_cbc:
75 return EVP_rc2_40_cbc();
76 case NID_des_ede3_cbc:
77 return EVP_des_ede3_cbc();
78 case NID_des_ede_cbc:
79 return EVP_des_cbc();
80 case NID_aes_128_cbc:
81 return EVP_aes_128_cbc();
82 case NID_aes_192_cbc:
83 return EVP_aes_192_cbc();
84 case NID_aes_256_cbc:
85 return EVP_aes_256_cbc();
86 default:
87 return NULL;
88 }
89}
90
91const EVP_CIPHER *EVP_get_cipherbyname(const char *name) {
92 if (OPENSSL_strcasecmp(name, "rc4") == 0) {
93 return EVP_rc4();
94 } else if (OPENSSL_strcasecmp(name, "des-cbc") == 0) {
95 return EVP_des_cbc();
96 } else if (OPENSSL_strcasecmp(name, "des-ede3-cbc") == 0 ||
97 // This is not a name used by OpenSSL, but tcpdump registers it
98 // with |EVP_add_cipher_alias|. Our |EVP_add_cipher_alias| is a
99 // no-op, so we support the name here.
100 OPENSSL_strcasecmp(name, "3des") == 0) {
101 return EVP_des_ede3_cbc();
102 } else if (OPENSSL_strcasecmp(name, "aes-128-cbc") == 0) {
103 return EVP_aes_128_cbc();
104 } else if (OPENSSL_strcasecmp(name, "aes-192-cbc") == 0) {
105 return EVP_aes_192_cbc();
106 } else if (OPENSSL_strcasecmp(name, "aes-256-cbc") == 0) {
107 return EVP_aes_256_cbc();
108 } else if (OPENSSL_strcasecmp(name, "aes-128-ctr") == 0) {
109 return EVP_aes_128_ctr();
110 } else if (OPENSSL_strcasecmp(name, "aes-192-ctr") == 0) {
111 return EVP_aes_192_ctr();
112 } else if (OPENSSL_strcasecmp(name, "aes-256-ctr") == 0) {
113 return EVP_aes_256_ctr();
114 } else if (OPENSSL_strcasecmp(name, "aes-128-ecb") == 0) {
115 return EVP_aes_128_ecb();
116 } else if (OPENSSL_strcasecmp(name, "aes-192-ecb") == 0) {
117 return EVP_aes_192_ecb();
118 } else if (OPENSSL_strcasecmp(name, "aes-256-ecb") == 0) {
119 return EVP_aes_256_ecb();
120 } else if (OPENSSL_strcasecmp(name, "aes-128-gcm") == 0) {
121 return EVP_aes_128_gcm();
122 } else if (OPENSSL_strcasecmp(name, "aes-192-gcm") == 0) {
123 return EVP_aes_192_gcm();
124 } else if (OPENSSL_strcasecmp(name, "aes-256-gcm") == 0) {
125 return EVP_aes_256_gcm();
126 } else if (OPENSSL_strcasecmp(name, "aes-128-ofb") == 0) {
127 return EVP_aes_128_ofb();
128 } else if (OPENSSL_strcasecmp(name, "aes-192-ofb") == 0) {
129 return EVP_aes_192_ofb();
130 } else if (OPENSSL_strcasecmp(name, "aes-256-ofb") == 0) {
131 return EVP_aes_256_ofb();
132 } else if (OPENSSL_strcasecmp(name, "des-ecb") == 0) {
133 return EVP_des_ecb();
134 } else if (OPENSSL_strcasecmp(name, "des-ede") == 0) {
135 return EVP_des_ede();
136 } else if (OPENSSL_strcasecmp(name, "des-ede-cbc") == 0) {
137 return EVP_des_ede_cbc();
138 } else if (OPENSSL_strcasecmp(name, "rc2-cbc") == 0) {
139 return EVP_rc2_cbc();
140 }
141
142 return NULL;
143}
144