| // Copyright 2017 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/hybrid/ecies_aead_hkdf_public_key_manager.h" |
| |
| #include "absl/status/status.h" |
| #include "absl/strings/string_view.h" |
| #include "tink/hybrid/ecies_aead_hkdf_hybrid_encrypt.h" |
| #include "tink/hybrid_encrypt.h" |
| #include "tink/key_manager.h" |
| #include "tink/util/errors.h" |
| #include "tink/util/protobuf_helper.h" |
| #include "tink/util/status.h" |
| #include "tink/util/statusor.h" |
| #include "tink/util/validation.h" |
| #include "proto/common.pb.h" |
| #include "proto/ecies_aead_hkdf.pb.h" |
| #include "proto/tink.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| using crypto::tink::util::Status; |
| using google::crypto::tink::EciesAeadHkdfParams; |
| using google::crypto::tink::EciesAeadHkdfPublicKey; |
| using google::crypto::tink::EcPointFormat; |
| using google::crypto::tink::EllipticCurveType; |
| using google::crypto::tink::HashType; |
| |
| Status EciesAeadHkdfPublicKeyManager::ValidateParams( |
| const EciesAeadHkdfParams& params) const { |
| // Validate KEM params. |
| if (!params.has_kem_params()) { |
| return Status(absl::StatusCode::kInvalidArgument, "Missing kem_params."); |
| } |
| if (params.kem_params().curve_type() == EllipticCurveType::UNKNOWN_CURVE || |
| params.kem_params().hkdf_hash_type() == HashType::UNKNOWN_HASH) { |
| return Status(absl::StatusCode::kInvalidArgument, "Invalid kem_params."); |
| } |
| |
| // Validate DEM params. |
| if (!params.has_dem_params()) { |
| return Status(absl::StatusCode::kInvalidArgument, "Missing dem_params."); |
| } |
| if (!params.dem_params().has_aead_dem()) { |
| return Status(absl::StatusCode::kInvalidArgument, "Invalid dem_params."); |
| } |
| |
| // Validate EC point format. |
| if (params.ec_point_format() == EcPointFormat::UNKNOWN_FORMAT) { |
| return Status(absl::StatusCode::kInvalidArgument, |
| "Unknown EC point format."); |
| } |
| return util::OkStatus(); |
| } |
| |
| Status EciesAeadHkdfPublicKeyManager::ValidateKey( |
| const EciesAeadHkdfPublicKey& key) const { |
| Status status = ValidateVersion(key.version(), get_version()); |
| if (!status.ok()) return status; |
| if (!key.has_params()) { |
| return Status(absl::StatusCode::kInvalidArgument, "Missing params."); |
| } |
| return ValidateParams(key.params()); |
| } |
| |
| |
| } // namespace tink |
| } // namespace crypto |