diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/rsa/rsa_null.c')
-rw-r--r-- | openssl-1.1.0h/crypto/rsa/rsa_null.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/rsa/rsa_null.c b/openssl-1.1.0h/crypto/rsa/rsa_null.c new file mode 100644 index 0000000..d339494 --- /dev/null +++ b/openssl-1.1.0h/crypto/rsa/rsa_null.c @@ -0,0 +1,93 @@ +/* + * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/bn.h> +#include "rsa_locl.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); +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; +} + +static int RSA_null_init(RSA *rsa) +{ + return (1); +} + +static int RSA_null_finish(RSA *rsa) +{ + return (1); +} |