xref: /dflybsd-src/crypto/libressl/crypto/rsa/rsa_depr.c (revision 961e30ea7dc61d1112b778ea4981eac68129fb86)

/* $OpenBSD: rsa_depr.c,v 1.9 2021/12/04 16:08:32 tb Exp $ */
/* ====================================================================
 * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

/* NB: This file contains deprecated functions (compatibility wrappers to the
 * "new" versions). */

#include <stdio.h>
#include <time.h>

#include <openssl/opensslconf.h>

#include <openssl/bn.h>
#include <openssl/rsa.h>

#include "bn_lcl.h"

#ifndef OPENSSL_NO_DEPRECATED

RSA *
RSA_generate_key(int bits, unsigned long e_value,
    void (*callback)(int, int, void *), void *cb_arg)
{
	BN_GENCB cb;
	int i;
	RSA *rsa = RSA_new();
	BIGNUM *e = BN_new();

	if (!rsa || !e)
		goto err;

	/* The problem is when building with 8, 16, or 32 BN_ULONG,
	 * unsigned long can be larger */
	for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) {
		if (e_value & (1UL << i))
			if (BN_set_bit(e, i) == 0)
				goto err;
	}

	BN_GENCB_set_old(&cb, callback, cb_arg);

	if (RSA_generate_key_ex(rsa, bits, e, &cb)) {
		BN_free(e);
		return rsa;
	}
err:
	BN_free(e);
	RSA_free(rsa);

	return 0;
}
#endif