| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| |
| /** |
| * @file rsa_support.h |
| * @author Mike Scott |
| * @brief RSA Support Header File |
| * |
| */ |
| |
| #ifndef RSA_SUPPORT_H |
| #define RSA_SUPPORT_H |
| |
| #include "amcl.h" |
| |
| #define MAX_RSA_BYTES 512 /**< Maximum of 4096 */ |
| |
| /** @brief PKCS V1.5 padding of a message prior to RSA signature |
| * |
| @param h is the hash type |
| @param M is the input message |
| @param W is the output encoding, ready for RSA signature |
| @return 1 if OK, else 0 |
| */ |
| extern int PKCS15(int h,octet *M,octet *W); |
| /** @brief OAEP padding of a message prior to RSA encryption |
| * |
| @param h is the hash type |
| @param M is the input message |
| @param R is a pointer to a cryptographically secure random number generator |
| @param P are input encoding parameter string (could be NULL) |
| @param F is the output encoding, ready for RSA encryption |
| @return 1 if OK, else 0 |
| */ |
| extern int OAEP_ENCODE(int h,octet *M,csprng *R,octet *P,octet *F); |
| /** @brief OAEP unpadding of a message after RSA decryption |
| * |
| Unpadding is done in-place |
| @param h is the hash type |
| @param P are input encoding parameter string (could be NULL) |
| @param F is input padded message, unpadded on output |
| @return 1 if OK, else 0 |
| */ |
| extern int OAEP_DECODE(int h,octet *P,octet *F); |
| |
| #endif |