| /* |
| * 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. |
| */ |
| |
| #include <keymaster/asymmetric_key_factory.h> |
| |
| #include <keymaster/android_keymaster_utils.h> |
| |
| #include "asymmetric_key.h" |
| #include "openssl_err.h" |
| #include "openssl_utils.h" |
| |
| namespace keymaster { |
| |
| static const keymaster_key_format_t supported_import_formats[] = {KM_KEY_FORMAT_PKCS8}; |
| const keymaster_key_format_t* |
| AsymmetricKeyFactory::SupportedImportFormats(size_t* format_count) const { |
| *format_count = array_length(supported_import_formats); |
| return supported_import_formats; |
| } |
| |
| static const keymaster_key_format_t supported_export_formats[] = {KM_KEY_FORMAT_X509}; |
| const keymaster_key_format_t* |
| AsymmetricKeyFactory::SupportedExportFormats(size_t* format_count) const { |
| *format_count = array_length(supported_export_formats); |
| return supported_export_formats; |
| } |
| |
| keymaster_error_t AsymmetricKeyFactory::LoadKey(const KeymasterKeyBlob& key_material, |
| const AuthorizationSet& hw_enforced, |
| const AuthorizationSet& sw_enforced, |
| UniquePtr<Key>* key) const { |
| UniquePtr<AsymmetricKey> asymmetric_key; |
| keymaster_error_t error = CreateEmptyKey(hw_enforced, sw_enforced, &asymmetric_key); |
| if (error != KM_ERROR_OK) |
| return error; |
| |
| const uint8_t* tmp = key_material.key_material; |
| EVP_PKEY* pkey = |
| d2i_PrivateKey(evp_key_type(), NULL /* pkey */, &tmp, key_material.key_material_size); |
| if (!pkey) |
| return TranslateLastOpenSslError(); |
| UniquePtr<EVP_PKEY, EVP_PKEY_Delete> pkey_deleter(pkey); |
| |
| if (!asymmetric_key->EvpToInternal(pkey)) |
| error = TranslateLastOpenSslError(); |
| else |
| key->reset(asymmetric_key.release()); |
| |
| return error; |
| } |
| |
| } // namespace keymaster |