68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <keymaster/asymmetric_key_factory.h>
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#include <keymaster/android_keymaster_utils.h>
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#include <keymaster/km_openssl/asymmetric_key.h>
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#include <keymaster/km_openssl/openssl_err.h>
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#include <keymaster/km_openssl/openssl_utils.h>
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namespace keymaster {
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static const keymaster_key_format_t supported_import_formats[] = {KM_KEY_FORMAT_PKCS8};
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const keymaster_key_format_t*
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AsymmetricKeyFactory::SupportedImportFormats(size_t* format_count) const {
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*format_count = array_length(supported_import_formats);
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return supported_import_formats;
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}
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static const keymaster_key_format_t supported_export_formats[] = {KM_KEY_FORMAT_X509};
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const keymaster_key_format_t*
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AsymmetricKeyFactory::SupportedExportFormats(size_t* format_count) const {
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*format_count = array_length(supported_export_formats);
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return supported_export_formats;
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}
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keymaster_error_t AsymmetricKeyFactory::LoadKey(KeymasterKeyBlob&& key_material,
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const AuthorizationSet& /* additional_params */,
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AuthorizationSet&& hw_enforced,
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AuthorizationSet&& sw_enforced,
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UniquePtr<Key>* key) const {
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UniquePtr<AsymmetricKey> asym_key;
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keymaster_error_t error = CreateEmptyKey(move(hw_enforced), move(sw_enforced), &asym_key);
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if (error != KM_ERROR_OK) return error;
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const uint8_t* tmp = key_material.key_material;
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asym_key->key_material() = move(key_material);
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EVP_PKEY* pkey = d2i_PrivateKey(asym_key->evp_key_type(), nullptr /* pkey */, &tmp,
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asym_key->key_material().key_material_size);
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if (!pkey) return TranslateLastOpenSslError();
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UniquePtr<EVP_PKEY, EVP_PKEY_Delete> pkey_deleter(pkey);
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if (!asym_key->EvpToInternal(pkey)) {
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error = TranslateLastOpenSslError();
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} else {
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*key = std::move(asym_key);
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}
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return error;
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}
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} // namespace keymaster
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