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openssl/crypto/rsa/rsa_depr.c

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This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
/* 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
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
* notice, this list of conditions and the following disclaimer.
This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
*
* 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).
*
*/
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
/*
* NB: This file contains deprecated functions (compatibility wrappers to the
* "new" versions).
*/
This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
Allow RSA key-generation to specify an arbitrary public exponent. Jelte proposed the change and submitted the patch, I jiggled it slightly and adjusted the other parts of openssl that were affected. PR: 867 Submitted by: Jelte Jansen Reviewed by: Geoff Thorpe
2004-04-26 23:31:35 +08:00
#ifdef OPENSSL_NO_DEPRECATED
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
static void *dummy = &dummy;
When OPENSSL_NO_DEPRECATED is defined, deprecated functions are (or should be) precompiled out in the API headers. This change is to ensure that if it is defined when compiling openssl, the deprecated functions aren't implemented either.
2003-10-29 12:06:50 +08:00
Allow RSA key-generation to specify an arbitrary public exponent. Jelte proposed the change and submitted the patch, I jiggled it slightly and adjusted the other parts of openssl that were affected. PR: 867 Submitted by: Jelte Jansen Reviewed by: Geoff Thorpe
2004-04-26 23:31:35 +08:00
#else
This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
RSA *RSA_generate_key(int bits, unsigned long e_value,
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
void (*callback) (int, int, void *), void *cb_arg)
{
int i;
BN_GENCB *cb = BN_GENCB_new();
RSA *rsa = RSA_new();
BIGNUM *e = BN_new();
This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
if (!cb || !rsa || !e)
goto err;
Allow RSA key-generation to specify an arbitrary public exponent. Jelte proposed the change and submitted the patch, I jiggled it slightly and adjusted the other parts of openssl that were affected. PR: 867 Submitted by: Jelte Jansen Reviewed by: Geoff Thorpe
2004-04-26 23:31:35 +08:00
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
/*
* 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;
}
This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
BN_GENCB_set_old(cb, callback, cb_arg);
This is a first-cut at improving the callback mechanisms used in key-generation and prime-checking functions. Rather than explicitly passing callback functions and caller-defined context data for the callbacks, a new structure BN_GENCB is defined that encapsulates this; a pointer to the structure is passed to all such functions instead. This wrapper structure allows the encapsulation of "old" and "new" style callbacks - "new" callbacks return a boolean result on the understanding that returning FALSE should terminate keygen/primality processing. The BN_GENCB abstraction will allow future callback modifications without needing to break binary compatibility nor change the API function prototypes. The new API functions have been given names ending in "_ex" and the old functions are implemented as wrappers to the new ones. The OPENSSL_NO_DEPRECATED symbol has been introduced so that, if defined, declaration of the older functions will be skipped. NB: Some openssl-internal code will stick with the older callbacks for now, so appropriate "#undef" logic will be put in place - this is in case the user is *building* openssl (rather than *including* its headers) with this symbol defined. There is another change in the new _ex functions; the key-generation functions do not return key structures but operate on structures passed by the caller, the return value is a boolean. This will allow for a smoother transition to having key-generation as "virtual function" in the various ***_METHOD tables.
2002-12-08 13:24:31 +08:00
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
if (RSA_generate_key_ex(rsa, bits, e, cb)) {
BN_free(e);
BN_GENCB_free(cb);
return rsa;
}
err:
if (e)
BN_free(e);
free NULL cleanup Start ensuring all OpenSSL "free" routines allow NULL, and remove any if check before calling them. This gets DH_free, DSA_free, RSA_free Reviewed-by: Matt Caswell <matt@openssl.org>
2015-03-24 22:17:37 +08:00
RSA_free(rsa);
Run util/openssl-format-source -v -c . Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 11:40:55 +08:00
if (cb)
BN_GENCB_free(cb);
return 0;
}
When OPENSSL_NO_DEPRECATED is defined, deprecated functions are (or should be) precompiled out in the API headers. This change is to ensure that if it is defined when compiling openssl, the deprecated functions aren't implemented either.
2003-10-29 12:06:50 +08:00
#endif