823146d65f
Reviewed-by: Kurt Roeckx <kurt@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1168)
93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
/*
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* Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/bn.h>
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#include "rsa_locl.h"
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/*
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* This is a dummy RSA implementation that just returns errors when called.
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* It is designed to allow some RSA functions to work while stopping those
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* covered by the RSA patent. That is RSA, encryption, decryption, signing
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* and verify is not allowed but RSA key generation, key checking and other
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* operations (like storing RSA keys) are permitted.
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*/
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static int RSA_null_public_encrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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static int RSA_null_private_encrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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static int RSA_null_public_decrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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static int RSA_null_private_decrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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static int RSA_null_init(RSA *rsa);
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static int RSA_null_finish(RSA *rsa);
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static RSA_METHOD rsa_null_meth = {
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"Null RSA",
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RSA_null_public_encrypt,
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RSA_null_public_decrypt,
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RSA_null_private_encrypt,
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RSA_null_private_decrypt,
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NULL,
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NULL,
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RSA_null_init,
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RSA_null_finish,
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0,
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NULL,
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NULL,
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NULL,
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NULL
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};
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const RSA_METHOD *RSA_null_method(void)
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{
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return (&rsa_null_meth);
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}
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static int RSA_null_public_encrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding)
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{
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RSAerr(RSA_F_RSA_NULL_PUBLIC_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
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return -1;
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}
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static int RSA_null_private_encrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding)
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{
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RSAerr(RSA_F_RSA_NULL_PRIVATE_ENCRYPT,
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RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
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return -1;
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}
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static int RSA_null_private_decrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding)
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{
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RSAerr(RSA_F_RSA_NULL_PRIVATE_DECRYPT,
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RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
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return -1;
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}
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static int RSA_null_public_decrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding)
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{
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RSAerr(RSA_F_RSA_NULL_PUBLIC_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
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return -1;
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}
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static int RSA_null_init(RSA *rsa)
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{
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return (1);
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}
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static int RSA_null_finish(RSA *rsa)
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{
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return (1);
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}
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