| /* rsa_null.c */ |
| /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| * 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 |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * 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. |
| */ |
| |
| static int RSA_null_public_encrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa,int padding); |
| static int RSA_null_private_encrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa,int padding); |
| static int RSA_null_public_decrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa,int padding); |
| static int RSA_null_private_decrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa,int padding); |
| #if 0 /* not currently used */ |
| static int RSA_null_mod_exp(const BIGNUM *r0, const BIGNUM *i, RSA *rsa); |
| #endif |
| 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, |
| NULL, |
| NULL, |
| RSA_null_init, |
| RSA_null_finish, |
| 0, |
| NULL, |
| NULL, |
| NULL, |
| NULL |
| }; |
| |
| const RSA_METHOD *RSA_null_method(void) |
| { |
| return(&rsa_null_meth); |
| } |
| |
| static int RSA_null_public_encrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa, int padding) |
| { |
| RSAerr(RSA_F_RSA_NULL_PUBLIC_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); |
| return -1; |
| } |
| |
| static int RSA_null_private_encrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa, int padding) |
| { |
| RSAerr(RSA_F_RSA_NULL_PRIVATE_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); |
| return -1; |
| } |
| |
| static int RSA_null_private_decrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa, int padding) |
| { |
| RSAerr(RSA_F_RSA_NULL_PRIVATE_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); |
| return -1; |
| } |
| |
| static int RSA_null_public_decrypt(int flen, const unsigned char *from, |
| unsigned char *to, RSA *rsa, int padding) |
| { |
| RSAerr(RSA_F_RSA_NULL_PUBLIC_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); |
| return -1; |
| } |
| |
| #if 0 /* not currently used */ |
| static int RSA_null_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa) |
| { |
| ...err(RSA_F_RSA_NULL_MOD_EXP, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED); |
| return -1; |
| } |
| #endif |
| |
| static int RSA_null_init(RSA *rsa) |
| { |
| return(1); |
| } |
| |
| static int RSA_null_finish(RSA *rsa) |
| { |
| return(1); |
| } |