| /* |
| * Copyright 2014 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. |
| */ |
| |
| #ifndef SYSTEM_KEYMASTER_ASYMMETRIC_KEY_H |
| #define SYSTEM_KEYMASTER_ASYMMETRIC_KEY_H |
| |
| #include <openssl/evp.h> |
| |
| #include "key.h" |
| #include "openssl_utils.h" |
| |
| namespace keymaster { |
| |
| class AsymmetricKey; |
| |
| class AsymmetricKeyFactory : public KeyFactory { |
| public: |
| AsymmetricKeyFactory(const KeymasterContext* context) : KeyFactory(context) {} |
| |
| keymaster_error_t KeyMaterialToEvpKey(keymaster_key_format_t key_format, |
| const KeymasterKeyBlob& key_material, |
| UniquePtr<EVP_PKEY, EVP_PKEY_Delete>* evp_pkey); |
| keymaster_error_t EvpKeyToKeyMaterial(const EVP_PKEY* evp_pkey, KeymasterKeyBlob* key_blob); |
| |
| keymaster_error_t LoadKey(const KeymasterKeyBlob& key_material, |
| const AuthorizationSet& hw_enforced, |
| const AuthorizationSet& sw_enforced, UniquePtr<Key>* key) override; |
| |
| virtual keymaster_error_t CreateEmptyKey(const AuthorizationSet& hw_enforced, |
| const AuthorizationSet& sw_enforced, |
| UniquePtr<AsymmetricKey>* key) = 0; |
| virtual int evp_key_type() = 0; |
| |
| virtual const keymaster_key_format_t* SupportedImportFormats(size_t* format_count); |
| virtual const keymaster_key_format_t* SupportedExportFormats(size_t* format_count); |
| }; |
| |
| class AsymmetricKey : public Key { |
| public: |
| AsymmetricKey(const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced, |
| keymaster_error_t* error) |
| : Key(hw_enforced, sw_enforced, error) {} |
| |
| keymaster_error_t key_material(UniquePtr<uint8_t[]>* material, size_t* size) const override; |
| keymaster_error_t formatted_key_material(keymaster_key_format_t format, |
| UniquePtr<uint8_t[]>* material, |
| size_t* size) const override; |
| |
| virtual bool InternalToEvp(EVP_PKEY* pkey) const = 0; |
| virtual bool EvpToInternal(const EVP_PKEY* pkey) = 0; |
| }; |
| |
| } // namespace keymaster |
| |
| #endif // SYSTEM_KEYMASTER_ASYMMETRIC_KEY_H |