| /* |
| * Copyright 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <hardware/keymaster_defs.h> |
| #include <keymaster/authorization_set.h> |
| |
| namespace keymaster { |
| |
| class Key; |
| class KeymasterContext; |
| class OperationFactory; |
| template <typename BlobType> struct TKeymasterBlob; |
| typedef TKeymasterBlob<keymaster_key_blob_t> KeymasterKeyBlob; |
| |
| /** |
| * KeyFactory is a abstraction that encapsulats the knowledge of how to build and parse a specifiec |
| * subclass of Key. |
| */ |
| class KeyFactory { |
| public: |
| virtual ~KeyFactory() {} |
| |
| // Factory methods. |
| virtual keymaster_error_t GenerateKey(const AuthorizationSet& key_description, |
| UniquePtr<Key> attestation_signing_key, |
| const KeymasterBlob& issuer_subject, |
| KeymasterKeyBlob* key_blob, // |
| AuthorizationSet* hw_enforced, |
| AuthorizationSet* sw_enforced, |
| CertificateChain* cert_chain) const = 0; |
| |
| virtual keymaster_error_t ImportKey(const AuthorizationSet& key_description, // |
| keymaster_key_format_t input_key_material_format, |
| const KeymasterKeyBlob& input_key_material, |
| UniquePtr<Key> attestation_signing_key, // |
| const KeymasterBlob& issuer_subject, |
| KeymasterKeyBlob* output_key_blob, |
| AuthorizationSet* hw_enforced, |
| AuthorizationSet* sw_enforced, |
| CertificateChain* cert_chain) const = 0; |
| |
| virtual keymaster_error_t LoadKey(KeymasterKeyBlob&& key_material, |
| const AuthorizationSet& additional_params, |
| AuthorizationSet&& hw_enforced, |
| AuthorizationSet&& sw_enforced, |
| UniquePtr<Key>* key) const = 0; |
| |
| virtual OperationFactory* GetOperationFactory(keymaster_purpose_t purpose) const = 0; |
| |
| // Informational methods. |
| virtual const keymaster_key_format_t* SupportedImportFormats(size_t* format_count) const = 0; |
| virtual const keymaster_key_format_t* SupportedExportFormats(size_t* format_count) const = 0; |
| }; |
| |
| } // namespace keymaster |