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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/rsa.h>
58 
59 #include <assert.h>
60 
61 #include <openssl/bn.h>
62 
63 
RSA_generate_key(int bits,unsigned long e_value,void * callback,void * cb_arg)64 RSA *RSA_generate_key(int bits, unsigned long e_value, void *callback,
65                       void *cb_arg) {
66   assert(callback == NULL);
67   assert(cb_arg == NULL);
68 
69   RSA *rsa = RSA_new();
70   BIGNUM *e = BN_new();
71 
72   if (rsa == NULL ||
73       e == NULL ||
74       !BN_set_word(e, e_value) ||
75       !RSA_generate_key_ex(rsa, bits, e, NULL)) {
76     goto err;
77   }
78 
79   BN_free(e);
80   return rsa;
81 
82 err:
83   BN_free(e);
84   RSA_free(rsa);
85   return NULL;
86 }
87 
RSA_padding_add_PKCS1_PSS(RSA * rsa,uint8_t * EM,const uint8_t * mHash,const EVP_MD * Hash,int sLen)88 int RSA_padding_add_PKCS1_PSS(RSA *rsa, uint8_t *EM, const uint8_t *mHash,
89                               const EVP_MD *Hash, int sLen) {
90   return RSA_padding_add_PKCS1_PSS_mgf1(rsa, EM, mHash, Hash, NULL, sLen);
91 }
92 
RSA_verify_PKCS1_PSS(RSA * rsa,const uint8_t * mHash,const EVP_MD * Hash,const uint8_t * EM,int sLen)93 int RSA_verify_PKCS1_PSS(RSA *rsa, const uint8_t *mHash, const EVP_MD *Hash,
94                          const uint8_t *EM, int sLen) {
95   return RSA_verify_PKCS1_PSS_mgf1(rsa, mHash, Hash, NULL, EM, sLen);
96 }
97 
RSA_padding_add_PKCS1_OAEP(uint8_t * to,size_t to_len,const uint8_t * from,size_t from_len,const uint8_t * param,size_t param_len)98 int RSA_padding_add_PKCS1_OAEP(uint8_t *to, size_t to_len,
99                                const uint8_t *from, size_t from_len,
100                                const uint8_t *param, size_t param_len) {
101   return RSA_padding_add_PKCS1_OAEP_mgf1(to, to_len, from, from_len, param,
102                                          param_len, NULL, NULL);
103 }
104