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 #ifndef TINK_EXPERIMENTAL_PQCRYPTO_KEM_CECPQ2_AEAD_HKDF_PRIVATE_KEY_MANAGER_H_ 17 #define TINK_EXPERIMENTAL_PQCRYPTO_KEM_CECPQ2_AEAD_HKDF_PRIVATE_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 "openssl/hrss.h" 25 #include "tink/core/key_type_manager.h" 26 #include "tink/core/private_key_type_manager.h" 27 #include "tink/experimental/pqcrypto/kem/cecpq2_aead_hkdf_dem_helper.h" 28 #include "tink/experimental/pqcrypto/kem/subtle/cecpq2_aead_hkdf_hybrid_decrypt.h" 29 #include "tink/hybrid_decrypt.h" 30 #include "tink/util/enums.h" 31 #include "tink/util/status.h" 32 #include "tink/util/statusor.h" 33 #include "proto/experimental/pqcrypto/cecpq2_aead_hkdf.pb.h" 34 #include "proto/tink.pb.h" 35 36 namespace crypto { 37 namespace tink { 38 39 class Cecpq2AeadHkdfPrivateKeyManager 40 : public PrivateKeyTypeManager< 41 google::crypto::tink::Cecpq2AeadHkdfPrivateKey, 42 google::crypto::tink::Cecpq2AeadHkdfKeyFormat, 43 google::crypto::tink::Cecpq2AeadHkdfPublicKey, List<HybridDecrypt>> { 44 public: 45 class HybridDecryptFactory : public PrimitiveFactory<HybridDecrypt> { Create(const google::crypto::tink::Cecpq2AeadHkdfPrivateKey & cecpq2_private_key)46 crypto::tink::util::StatusOr<std::unique_ptr<HybridDecrypt>> Create( 47 const google::crypto::tink::Cecpq2AeadHkdfPrivateKey& 48 cecpq2_private_key) const override { 49 return Cecpq2AeadHkdfHybridDecrypt::New(cecpq2_private_key); 50 } 51 }; 52 Cecpq2AeadHkdfPrivateKeyManager()53 Cecpq2AeadHkdfPrivateKeyManager() 54 : PrivateKeyTypeManager(absl::make_unique<HybridDecryptFactory>()) {} 55 get_version()56 uint32_t get_version() const override { return 0; } 57 key_material_type()58 google::crypto::tink::KeyData::KeyMaterialType key_material_type() 59 const override { 60 return google::crypto::tink::KeyData::ASYMMETRIC_PRIVATE; 61 } 62 get_key_type()63 const std::string& get_key_type() const override { return key_type_; } 64 65 crypto::tink::util::Status ValidateKey( 66 const google::crypto::tink::Cecpq2AeadHkdfPrivateKey& key) const override; 67 68 crypto::tink::util::Status ValidateKeyFormat( 69 const google::crypto::tink::Cecpq2AeadHkdfKeyFormat& cecpq2_key_format) 70 const override; 71 72 crypto::tink::util::StatusOr<google::crypto::tink::Cecpq2AeadHkdfPrivateKey> 73 CreateKey(const google::crypto::tink::Cecpq2AeadHkdfKeyFormat& key_format) 74 const override; 75 76 crypto::tink::util::StatusOr<google::crypto::tink::Cecpq2AeadHkdfPublicKey> 77 GetPublicKey(const google::crypto::tink::Cecpq2AeadHkdfPrivateKey& 78 private_key) const override; 79 80 private: 81 const std::string key_type_ = absl::StrCat( 82 "type.googleapis.com/", 83 google::crypto::tink::Cecpq2AeadHkdfPrivateKey().GetTypeName()); 84 }; 85 86 } // namespace tink 87 } // namespace crypto 88 89 #endif // TINK_EXPERIMENTAL_PQCRYPTO_KEM_CECPQ2_AEAD_HKDF_PRIVATE_KEY_MANAGER_H_ 90