1*e7b1675dSTing-Kang Chang // Copyright 2018 Google LLC 2*e7b1675dSTing-Kang Chang // 3*e7b1675dSTing-Kang Chang // Licensed under the Apache License, Version 2.0 (the "License"); 4*e7b1675dSTing-Kang Chang // you may not use this file except in compliance with the License. 5*e7b1675dSTing-Kang Chang // You may obtain a copy of the License at 6*e7b1675dSTing-Kang Chang // 7*e7b1675dSTing-Kang Chang // http://www.apache.org/licenses/LICENSE-2.0 8*e7b1675dSTing-Kang Chang // 9*e7b1675dSTing-Kang Chang // Unless required by applicable law or agreed to in writing, software 10*e7b1675dSTing-Kang Chang // distributed under the License is distributed on an "AS IS" BASIS, 11*e7b1675dSTing-Kang Chang // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*e7b1675dSTing-Kang Chang // See the License for the specific language governing permissions and 13*e7b1675dSTing-Kang Chang // limitations under the License. 14*e7b1675dSTing-Kang Chang // 15*e7b1675dSTing-Kang Chang /////////////////////////////////////////////////////////////////////////////// 16*e7b1675dSTing-Kang Chang 17*e7b1675dSTing-Kang Chang #ifndef TINK_KMS_CLIENT_H_ 18*e7b1675dSTing-Kang Chang #define TINK_KMS_CLIENT_H_ 19*e7b1675dSTing-Kang Chang 20*e7b1675dSTing-Kang Chang #include <memory> 21*e7b1675dSTing-Kang Chang 22*e7b1675dSTing-Kang Chang #include "absl/strings/string_view.h" 23*e7b1675dSTing-Kang Chang #include "tink/aead.h" 24*e7b1675dSTing-Kang Chang #include "tink/util/statusor.h" 25*e7b1675dSTing-Kang Chang 26*e7b1675dSTing-Kang Chang namespace crypto { 27*e7b1675dSTing-Kang Chang namespace tink { 28*e7b1675dSTing-Kang Chang 29*e7b1675dSTing-Kang Chang // KmsClient knows how to produce primitives backed by keys stored 30*e7b1675dSTing-Kang Chang // in remote KMS services. 31*e7b1675dSTing-Kang Chang class KmsClient { 32*e7b1675dSTing-Kang Chang public: 33*e7b1675dSTing-Kang Chang // Returns true iff this client does support KMS key specified by 'key_uri'. 34*e7b1675dSTing-Kang Chang virtual bool DoesSupport(absl::string_view key_uri) const = 0; 35*e7b1675dSTing-Kang Chang 36*e7b1675dSTing-Kang Chang // Returns an Aead-primitive backed by KMS key specified by 'key_uri', 37*e7b1675dSTing-Kang Chang // provided that this KmsClient does support 'key_uri'. 38*e7b1675dSTing-Kang Chang virtual crypto::tink::util::StatusOr<std::unique_ptr<Aead>> 39*e7b1675dSTing-Kang Chang GetAead(absl::string_view key_uri) const = 0; 40*e7b1675dSTing-Kang Chang 41*e7b1675dSTing-Kang Chang virtual ~KmsClient() = default; 42*e7b1675dSTing-Kang Chang }; 43*e7b1675dSTing-Kang Chang 44*e7b1675dSTing-Kang Chang } // namespace tink 45*e7b1675dSTing-Kang Chang } // namespace crypto 46*e7b1675dSTing-Kang Chang 47*e7b1675dSTing-Kang Chang #endif // TINK_KMS_CLIENT_H_ 48