1 // Copyright 2017 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 #ifndef TINK_SIGNATURE_ECDSA_SIGN_KEY_MANAGER_H_ 17 #define TINK_SIGNATURE_ECDSA_SIGN_KEY_MANAGER_H_ 18 19 #include <memory> 20 #include <string> 21 22 #include "absl/memory/memory.h" 23 #include "absl/strings/str_cat.h" 24 #include "tink/core/private_key_type_manager.h" 25 #include "tink/public_key_sign.h" 26 #include "tink/util/constants.h" 27 #include "tink/util/errors.h" 28 #include "tink/util/protobuf_helper.h" 29 #include "tink/util/status.h" 30 #include "tink/util/statusor.h" 31 #include "proto/ecdsa.pb.h" 32 33 namespace crypto { 34 namespace tink { 35 36 class EcdsaSignKeyManager 37 : public PrivateKeyTypeManager<google::crypto::tink::EcdsaPrivateKey, 38 google::crypto::tink::EcdsaKeyFormat, 39 google::crypto::tink::EcdsaPublicKey, 40 List<PublicKeySign>> { 41 public: 42 class PublicKeySignFactory : public PrimitiveFactory<PublicKeySign> { 43 crypto::tink::util::StatusOr<std::unique_ptr<PublicKeySign>> Create( 44 const google::crypto::tink::EcdsaPrivateKey& private_key) 45 const override; 46 }; 47 EcdsaSignKeyManager()48 EcdsaSignKeyManager() 49 : PrivateKeyTypeManager(absl::make_unique<PublicKeySignFactory>()) {} 50 get_version()51 uint32_t get_version() const override { return 0; } 52 key_material_type()53 google::crypto::tink::KeyData::KeyMaterialType key_material_type() 54 const override { 55 return google::crypto::tink::KeyData::ASYMMETRIC_PRIVATE; 56 } 57 get_key_type()58 const std::string& get_key_type() const override { return key_type_; } 59 60 crypto::tink::util::Status ValidateKey( 61 const google::crypto::tink::EcdsaPrivateKey& key) const override; 62 63 crypto::tink::util::Status ValidateKeyFormat( 64 const google::crypto::tink::EcdsaKeyFormat& key_format) const override; 65 66 crypto::tink::util::StatusOr<google::crypto::tink::EcdsaPrivateKey> CreateKey( 67 const google::crypto::tink::EcdsaKeyFormat& key_format) const override; 68 69 crypto::tink::util::StatusOr<google::crypto::tink::EcdsaPrivateKey> DeriveKey( 70 const google::crypto::tink::EcdsaKeyFormat& key_format, 71 InputStream* input_stream) const override; 72 73 crypto::tink::util::StatusOr<google::crypto::tink::EcdsaPublicKey> GetPublicKey(const google::crypto::tink::EcdsaPrivateKey & private_key)74 GetPublicKey( 75 const google::crypto::tink::EcdsaPrivateKey& private_key) const override { 76 return private_key.public_key(); 77 } 78 FipsStatus()79 internal::FipsCompatibility FipsStatus() const override { 80 return internal::FipsCompatibility::kRequiresBoringCrypto; 81 } 82 83 private: 84 const std::string key_type_ = 85 absl::StrCat(kTypeGoogleapisCom, 86 google::crypto::tink::EcdsaPrivateKey().GetTypeName()); 87 }; 88 89 } // namespace tink 90 } // namespace crypto 91 92 #endif // TINK_SIGNATURE_ECDSA_SIGN_KEY_MANAGER_H_ 93