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openssl/crypto/rsa/rsa_null.c

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This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
/* rsa_null.c */
Update obsolete email address...
2008-11-05 18:39:08 +00:00
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
* project 1999.
*/
/* ====================================================================
* Copyright (c) 1999 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
* licensing@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
Fix typo.
1999-09-08 20:01:28 +00:00
* (eay@cryptsoft.com). This product includes software written by Tim
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
/* This is a dummy RSA implementation that just returns errors when called.
* It is designed to allow some RSA functions to work while stopping those
* covered by the RSA patent. That is RSA, encryption, decryption, signing
* and verify is not allowed but RSA key generation, key checking and other
* operations (like storing RSA keys) are permitted.
*/
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_public_encrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa,int padding);
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_private_encrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa,int padding);
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_public_decrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa,int padding);
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_private_decrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa,int padding);
Correct warnings.
1999-09-09 20:15:17 +00:00
#if 0 /* not currently used */
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_mod_exp(const BIGNUM *r0, const BIGNUM *i, RSA *rsa);
Correct warnings.
1999-09-09 20:15:17 +00:00
#endif
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
static int RSA_null_init(RSA *rsa);
static int RSA_null_finish(RSA *rsa);
static RSA_METHOD rsa_null_meth={
"Null RSA",
RSA_null_public_encrypt,
RSA_null_public_decrypt,
RSA_null_private_encrypt,
RSA_null_private_decrypt,
Constify the RSA library.
2000-11-06 22:34:17 +00:00
NULL,
NULL,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
RSA_null_init,
RSA_null_finish,
0,
NULL,
This is the first step in allowing RSA_METHODs to implement their own key generation. This prototype matches the new API function RSA_generate_key_ex(), though both may be subject to change during development before 0.9.8.
2003-01-07 05:51:39 +00:00
NULL,
NULL,
NULL
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
};
A few more constifications of some RSA routines that I forgot yesterday.
2000-11-07 13:49:46 +00:00
const RSA_METHOD *RSA_null_method(void)
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
{
return(&rsa_null_meth);
}
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_public_encrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa, int padding)
{
Fix more error codes. (Also improve util/ck_errf.pl script, and occasionally fix source code formatting.)
2005-05-11 03:45:39 +00:00
RSAerr(RSA_F_RSA_NULL_PUBLIC_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
return -1;
}
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_private_encrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa, int padding)
{
Fix more error codes. (Also improve util/ck_errf.pl script, and occasionally fix source code formatting.)
2005-05-11 03:45:39 +00:00
RSAerr(RSA_F_RSA_NULL_PRIVATE_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
return -1;
}
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_private_decrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa, int padding)
{
Fix more error codes. (Also improve util/ck_errf.pl script, and occasionally fix source code formatting.)
2005-05-11 03:45:39 +00:00
RSAerr(RSA_F_RSA_NULL_PRIVATE_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
return -1;
}
Constify the RSA library.
2000-11-06 22:34:17 +00:00
static int RSA_null_public_decrypt(int flen, const unsigned char *from,
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
unsigned char *to, RSA *rsa, int padding)
{
Fix more error codes. (Also improve util/ck_errf.pl script, and occasionally fix source code formatting.)
2005-05-11 03:45:39 +00:00
RSAerr(RSA_F_RSA_NULL_PUBLIC_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
return -1;
}
Correct warnings.
1999-09-09 20:15:17 +00:00
#if 0 /* not currently used */
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
static int RSA_null_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa)
{
Fix more error codes. (Also improve util/ck_errf.pl script, and occasionally fix source code formatting.)
2005-05-11 03:45:39 +00:00
...err(RSA_F_RSA_NULL_MOD_EXP, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
return -1;
}
Correct warnings.
1999-09-09 20:15:17 +00:00
#endif
This is preliminary support for an "RSA null" cipher. Unfortunately when OpenSSL is compiled with NO_RSA, no RSA operations can be used: including key generation storage and display of RSA keys. Since these operations are not covered by the RSA patent (my understanding is it only covers encrypt, decrypt, sign and verify) they can be included: this is an often requested feature, attempts to use the patented operations return an error code. This is enabled by setting RSA_NULL. This means that if a particular application has its own legal US RSA implementation then it can use that instead by setting it as the default RSA method. Still experimental and needs some fiddling of the other libraries so they have some options that don't attempt to use RSA if it isn't allowed.
1999-09-08 18:02:25 +00:00
static int RSA_null_init(RSA *rsa)
{
return(1);
}
static int RSA_null_finish(RSA *rsa)
{
return(1);
}
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