1 /* $OpenBSD: rsa_depr.c,v 1.9 2021/12/04 16:08:32 tb Exp $ */
2 /* ====================================================================
3  * Copyright (c) 1998-2002 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 /* NB: This file contains deprecated functions (compatibility wrappers to the
57  * "new" versions). */
58 
59 #include <stdio.h>
60 #include <time.h>
61 
62 #include <openssl/opensslconf.h>
63 
64 #include <openssl/bn.h>
65 #include <openssl/rsa.h>
66 
67 #include "bn_lcl.h"
68 
69 #ifndef OPENSSL_NO_DEPRECATED
70 
71 RSA *
72 RSA_generate_key(int bits, unsigned long e_value,
73     void (*callback)(int, int, void *), void *cb_arg)
74 {
75 	BN_GENCB cb;
76 	int i;
77 	RSA *rsa = RSA_new();
78 	BIGNUM *e = BN_new();
79 
80 	if (!rsa || !e)
81 		goto err;
82 
83 	/* The problem is when building with 8, 16, or 32 BN_ULONG,
84 	 * unsigned long can be larger */
85 	for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) {
86 		if (e_value & (1UL << i))
87 			if (BN_set_bit(e, i) == 0)
88 				goto err;
89 	}
90 
91 	BN_GENCB_set_old(&cb, callback, cb_arg);
92 
93 	if (RSA_generate_key_ex(rsa, bits, e, &cb)) {
94 		BN_free(e);
95 		return rsa;
96 	}
97 err:
98 	BN_free(e);
99 	RSA_free(rsa);
100 
101 	return 0;
102 }
103 #endif
104