| /** |
| * Copyright 2018 Google Inc. |
| * |
| * Licensed 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. |
| * |
| ************************************************************************** |
| */ |
| |
| #import <Foundation/Foundation.h> |
| |
| NS_ASSUME_NONNULL_BEGIN |
| |
| /** |
| * Protocol for public key signing. |
| * Digital Signatures provide functionality of signing data and verification of the signatures. |
| * They are represented by a pair of primitives PublicKeySign for signing of data, and |
| * PublicKeyVerify for verification of signatures. Implementations of these interfaces are secure |
| * against adaptive chosen-message attacks. Signing data ensures the authenticity and the integrity |
| * of that data, but not its secrecy. |
| */ |
| @protocol TINKPublicKeySign <NSObject> |
| |
| /** |
| * Computes the signature for @c data. |
| * |
| * @param data The data to compute the signature of. |
| * @param error non-nil in case of error. |
| * @return The signature of data. |
| */ |
| - (nullable NSData *)signatureForData:(NSData *)data error:(NSError **)error; |
| |
| @end |
| |
| NS_ASSUME_NONNULL_END |
