| # Copyright 2019 Google LLC. |
| # |
| # 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. |
| |
| from "tink/python/util/clif.h" import * # StatusOr |
| |
| from "tink/cc/public_key_sign.h": |
| namespace `crypto::tink`: |
| # Interface for public key signing. |
| # Digital Signatures provide functionality of signing data and verification |
| # of the signatures. They are represented by a pair of primitives |
| # (interfaces) '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. |
| class PublicKeySign: |
| # Computes the signature for 'data'. |
| def `Sign` as sign(self, data: bytes) -> StatusOr<bytes> |