| // Copyright 2019 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. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include "tink/aead.h" |
| |
| #include "pybind11/pybind11.h" |
| #include "tink/util/statusor.h" |
| #include "tink/cc/pybind/status_casters.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| void PybindRegisterAead(pybind11::module* module) { |
| namespace py = pybind11; |
| py::module& m = *module; |
| |
| // TODO(b/146492561): Reduce the number of complicated lambdas. |
| py::class_<Aead>( |
| m, "Aead", |
| "The interface for authenticated encryption with associated data. " |
| "Implementations of this interface are secure against adaptive " |
| "chosen ciphertext attacks. Encryption with associated data ensures " |
| "authenticity and integrity of that data, but not its secrecy. " |
| "(see RFC 5116, https://tools.ietf.org/html/rfc5116)") |
| |
| .def( |
| "encrypt", |
| [](const Aead& self, const py::bytes& plaintext, |
| const py::bytes& associated_data) -> util::StatusOr<py::bytes> { |
| // TODO(b/145925674) |
| return self.Encrypt(std::string(plaintext), |
| std::string(associated_data)); |
| }, |
| py::arg("plaintext"), py::arg("associated_data"), |
| "Encrypts 'plaintext' with 'associated_data' as associated data, " |
| "and returns the resulting ciphertext. " |
| "The ciphertext allows for checking authenticity and integrity " |
| "of the associated data, but does not guarantee its secrecy.") |
| .def( |
| "decrypt", |
| [](const Aead& self, const py::bytes& ciphertext, |
| const py::bytes& associated_data) -> util::StatusOr<py::bytes> { |
| // TODO(b/145925674) |
| return self.Decrypt(std::string(ciphertext), |
| std::string(associated_data)); |
| }, |
| py::arg("ciphertext"), py::arg("associated_data"), |
| "Decrypts 'ciphertext' with 'associated_data' as associated data, " |
| "and returns the resulting plaintext. " |
| "The decryption verifies the authenticity and integrity " |
| "of the associated data, but there are no guarantees wrt. secrecy " |
| "of that data."); |
| } |
| |
| } // namespace tink |
| } // namespace crypto |