openssl/crypto/rsa/rsa_depr.c

/* crypto/rsa/rsa_depr.c */
/* ====================================================================
 * 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 "internal/cryptlib.h"
#include <openssl/opensslconf.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>

#if OPENSSL_API_COMPAT >= 0x00908000L

static void *dummy = &dummy;

#else

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

    if (cb == NULL || rsa == NULL || e == NULL)
        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);
        BN_GENCB_free(cb);
        return rsa;
    }
 err:
    BN_free(e);
    RSA_free(rsa);
    BN_GENCB_free(cb);
    return 0;
}
#endif