| // 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. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| // Implementation of a Hybrid encryption service |
| #include "hybrid_impl.h" |
| |
| #include "tink/binary_keyset_reader.h" |
| #include "tink/cleartext_keyset_handle.h" |
| #include "tink/hybrid_decrypt.h" |
| #include "tink/hybrid_encrypt.h" |
| #include "proto/testing/testing_api.grpc.pb.h" |
| |
| namespace tink_testing_api { |
| |
| using ::crypto::tink::BinaryKeysetReader; |
| using ::crypto::tink::CleartextKeysetHandle; |
| using ::grpc::ServerContext; |
| using ::grpc::Status; |
| |
| HybridImpl::HybridImpl() {} |
| |
| // Encrypts a message |
| ::grpc::Status HybridImpl::Encrypt(grpc::ServerContext* context, |
| const HybridEncryptRequest* request, |
| HybridEncryptResponse* response) { |
| auto reader_result = BinaryKeysetReader::New(request->public_keyset()); |
| if (!reader_result.ok()) { |
| response->set_err(reader_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| auto public_handle_result = |
| CleartextKeysetHandle::Read(std::move(reader_result.ValueOrDie())); |
| if (!public_handle_result.ok()) { |
| response->set_err(public_handle_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| auto hybrid_encrypt_result = |
| public_handle_result.ValueOrDie() |
| ->GetPrimitive<crypto::tink::HybridEncrypt>(); |
| if (!hybrid_encrypt_result.ok()) { |
| response->set_err(hybrid_encrypt_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| auto enc_result = hybrid_encrypt_result.ValueOrDie()->Encrypt( |
| request->plaintext(), request->context_info()); |
| if (!enc_result.ok()) { |
| response->set_err(enc_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| response->set_ciphertext(enc_result.ValueOrDie()); |
| return ::grpc::Status::OK; |
| } |
| |
| // Decrypts a ciphertext |
| ::grpc::Status HybridImpl::Decrypt(grpc::ServerContext* context, |
| const HybridDecryptRequest* request, |
| HybridDecryptResponse* response) { |
| auto reader_result = BinaryKeysetReader::New(request->private_keyset()); |
| if (!reader_result.ok()) { |
| response->set_err(reader_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| auto private_handle_result = |
| CleartextKeysetHandle::Read(std::move(reader_result.ValueOrDie())); |
| if (!private_handle_result.ok()) { |
| response->set_err(private_handle_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| auto hybrid_decrypt_result = |
| private_handle_result.ValueOrDie() |
| ->GetPrimitive<crypto::tink::HybridDecrypt>(); |
| if (!hybrid_decrypt_result.ok()) { |
| response->set_err(hybrid_decrypt_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| auto dec_result = hybrid_decrypt_result.ValueOrDie()->Decrypt( |
| request->ciphertext(), request->context_info()); |
| if (!dec_result.ok()) { |
| response->set_err(dec_result.status().error_message()); |
| return ::grpc::Status::OK; |
| } |
| response->set_plaintext(dec_result.ValueOrDie()); |
| return ::grpc::Status::OK; |
| } |
| |
| } // namespace tink_testing_api |