1 // Copyright 2021 Google LLC 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 #ifndef TINK_JWT_INTERNAL_JWT_PUBLIC_KEY_SIGN_IMPL_H_ 18 #define TINK_JWT_INTERNAL_JWT_PUBLIC_KEY_SIGN_IMPL_H_ 19 20 #include <memory> 21 #include <string> 22 #include <utility> 23 24 #include "absl/strings/string_view.h" 25 #include "tink/jwt/internal/jwt_public_key_sign_internal.h" 26 #include "tink/jwt/raw_jwt.h" 27 #include "tink/public_key_sign.h" 28 #include "tink/util/status.h" 29 #include "tink/util/statusor.h" 30 31 namespace crypto { 32 namespace tink { 33 namespace jwt_internal { 34 35 class JwtPublicKeySignImpl : public JwtPublicKeySignInternal { 36 public: JwtPublicKeySignImpl(std::unique_ptr<crypto::tink::PublicKeySign> sign,absl::string_view algorithm,absl::optional<absl::string_view> custom_kid)37 explicit JwtPublicKeySignImpl( 38 std::unique_ptr<crypto::tink::PublicKeySign> sign, 39 absl::string_view algorithm, 40 absl::optional<absl::string_view> custom_kid) { 41 sign_ = std::move(sign); 42 algorithm_ = std::string(algorithm); 43 if (custom_kid.has_value()) { 44 custom_kid_ = std::string(*custom_kid); 45 } 46 } 47 crypto::tink::util::StatusOr<std::string> SignAndEncodeWithKid( 48 const crypto::tink::RawJwt& token, 49 absl::optional<absl::string_view> kid) const override; 50 51 private: 52 std::unique_ptr<crypto::tink::PublicKeySign> sign_; 53 std::string algorithm_; 54 // custom_kid may be set when a key is converted from another format, for 55 // example JWK. It does not have any relation to the key id. It can only be 56 // set for keys with output prefix RAW. 57 absl::optional<std::string> custom_kid_; 58 }; 59 60 } // namespace jwt_internal 61 } // namespace tink 62 } // namespace crypto 63 64 #endif // TINK_JWT_INTERNAL_JWT_PUBLIC_KEY_SIGN_IMPL_H_ 65