diff options
Diffstat (limited to 'openssl/crypto/rsa/rsa_null.c')
| -rw-r--r-- | openssl/crypto/rsa/rsa_null.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/openssl/crypto/rsa/rsa_null.c b/openssl/crypto/rsa/rsa_null.c new file mode 100644 index 00000000..2f2202f1 --- /dev/null +++ b/openssl/crypto/rsa/rsa_null.c @@ -0,0 +1,151 @@ +/* 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); + } |