1 // Copyright 2019 Google Inc. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 /////////////////////////////////////////////////////////////////////////////// 16 17 #include "tink/signature/ed25519_verify_key_manager.h" 18 19 #include <memory> 20 21 #include "absl/status/status.h" 22 #include "absl/strings/string_view.h" 23 #include "tink/public_key_verify.h" 24 #include "tink/subtle/ed25519_verify_boringssl.h" 25 #include "tink/util/errors.h" 26 #include "tink/util/protobuf_helper.h" 27 #include "tink/util/status.h" 28 #include "tink/util/statusor.h" 29 #include "tink/util/validation.h" 30 #include "proto/ed25519.pb.h" 31 32 namespace crypto { 33 namespace tink { 34 35 using crypto::tink::util::Status; 36 using crypto::tink::util::StatusOr; 37 using google::crypto::tink::Ed25519PublicKey; 38 39 StatusOr<std::unique_ptr<PublicKeyVerify>> Create(const Ed25519PublicKey & public_key) const40Ed25519VerifyKeyManager::PublicKeyVerifyFactory::Create( 41 const Ed25519PublicKey& public_key) const { 42 return subtle::Ed25519VerifyBoringSsl::New(public_key.key_value()); 43 } 44 ValidateKey(const Ed25519PublicKey & key) const45Status Ed25519VerifyKeyManager::ValidateKey(const Ed25519PublicKey& key) const { 46 Status status = ValidateVersion(key.version(), get_version()); 47 if (!status.ok()) return status; 48 49 if (key.key_value().length() != 32) { 50 return Status(absl::StatusCode::kInvalidArgument, 51 "The ED25519 public key must be 32-bytes long."); 52 } 53 return util::OkStatus(); 54 } 55 56 } // namespace tink 57 } // namespace crypto 58