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0f113f3e MC |
1 | /* |
2 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project | |
3 | * 1999. | |
4a61a64f DSH |
4 | */ |
5 | /* ==================================================================== | |
6 | * Copyright (c) 1999 The OpenSSL Project. 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 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 13 | * notice, this list of conditions and the following disclaimer. |
4a61a64f DSH |
14 | * |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
0d64ea89 | 54 | * (eay@cryptsoft.com). This product includes software written by Tim |
4a61a64f DSH |
55 | * Hudson (tjh@cryptsoft.com). |
56 | * | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
b39fc560 | 60 | #include "internal/cryptlib.h" |
4a61a64f DSH |
61 | #include <openssl/bn.h> |
62 | #include <openssl/rsa.h> | |
63 | #include <openssl/rand.h> | |
64 | ||
0f113f3e MC |
65 | /* |
66 | * This is a dummy RSA implementation that just returns errors when called. | |
4a61a64f DSH |
67 | * It is designed to allow some RSA functions to work while stopping those |
68 | * covered by the RSA patent. That is RSA, encryption, decryption, signing | |
69 | * and verify is not allowed but RSA key generation, key checking and other | |
70 | * operations (like storing RSA keys) are permitted. | |
71 | */ | |
72 | ||
29c1f061 | 73 | static int RSA_null_public_encrypt(int flen, const unsigned char *from, |
0f113f3e | 74 | unsigned char *to, RSA *rsa, int padding); |
29c1f061 | 75 | static int RSA_null_private_encrypt(int flen, const unsigned char *from, |
0f113f3e | 76 | unsigned char *to, RSA *rsa, int padding); |
29c1f061 | 77 | static int RSA_null_public_decrypt(int flen, const unsigned char *from, |
0f113f3e | 78 | unsigned char *to, RSA *rsa, int padding); |
29c1f061 | 79 | static int RSA_null_private_decrypt(int flen, const unsigned char *from, |
0f113f3e | 80 | unsigned char *to, RSA *rsa, int padding); |
4a61a64f DSH |
81 | static int RSA_null_init(RSA *rsa); |
82 | static int RSA_null_finish(RSA *rsa); | |
0f113f3e MC |
83 | static RSA_METHOD rsa_null_meth = { |
84 | "Null RSA", | |
85 | RSA_null_public_encrypt, | |
86 | RSA_null_public_decrypt, | |
87 | RSA_null_private_encrypt, | |
88 | RSA_null_private_decrypt, | |
89 | NULL, | |
90 | NULL, | |
91 | RSA_null_init, | |
92 | RSA_null_finish, | |
93 | 0, | |
94 | NULL, | |
95 | NULL, | |
96 | NULL, | |
97 | NULL | |
98 | }; | |
4a61a64f | 99 | |
7be7c2ed | 100 | const RSA_METHOD *RSA_null_method(void) |
0f113f3e MC |
101 | { |
102 | return (&rsa_null_meth); | |
103 | } | |
4a61a64f | 104 | |
29c1f061 | 105 | static int RSA_null_public_encrypt(int flen, const unsigned char *from, |
0f113f3e MC |
106 | unsigned char *to, RSA *rsa, int padding) |
107 | { | |
108 | RSAerr(RSA_F_RSA_NULL_PUBLIC_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); | |
109 | return -1; | |
110 | } | |
4a61a64f | 111 | |
29c1f061 | 112 | static int RSA_null_private_encrypt(int flen, const unsigned char *from, |
0f113f3e MC |
113 | unsigned char *to, RSA *rsa, int padding) |
114 | { | |
115 | RSAerr(RSA_F_RSA_NULL_PRIVATE_ENCRYPT, | |
116 | RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); | |
117 | return -1; | |
118 | } | |
4a61a64f | 119 | |
29c1f061 | 120 | static int RSA_null_private_decrypt(int flen, const unsigned char *from, |
0f113f3e MC |
121 | unsigned char *to, RSA *rsa, int padding) |
122 | { | |
123 | RSAerr(RSA_F_RSA_NULL_PRIVATE_DECRYPT, | |
124 | RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); | |
125 | return -1; | |
126 | } | |
4a61a64f | 127 | |
29c1f061 | 128 | static int RSA_null_public_decrypt(int flen, const unsigned char *from, |
0f113f3e MC |
129 | unsigned char *to, RSA *rsa, int padding) |
130 | { | |
131 | RSAerr(RSA_F_RSA_NULL_PUBLIC_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); | |
132 | return -1; | |
133 | } | |
4a61a64f | 134 | |
4a61a64f | 135 | static int RSA_null_init(RSA *rsa) |
0f113f3e MC |
136 | { |
137 | return (1); | |
138 | } | |
4a61a64f DSH |
139 | |
140 | static int RSA_null_finish(RSA *rsa) | |
0f113f3e MC |
141 | { |
142 | return (1); | |
143 | } |