66 lines
2.4 KiB
C++
66 lines
2.4 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 "asymmetric_key.h"
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#include "openssl_err.h"
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#include "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(const KeymasterKeyBlob& key_material,
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const AuthorizationSet& /* additional_params */,
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const AuthorizationSet& hw_enforced,
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const AuthorizationSet& sw_enforced,
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UniquePtr<Key>* key) const {
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UniquePtr<AsymmetricKey> asymmetric_key;
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keymaster_error_t error = CreateEmptyKey(hw_enforced, sw_enforced, &asymmetric_key);
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if (error != KM_ERROR_OK)
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return error;
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const uint8_t* tmp = key_material.key_material;
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EVP_PKEY* pkey =
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d2i_PrivateKey(evp_key_type(), NULL /* pkey */, &tmp, key_material.key_material_size);
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if (!pkey)
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return TranslateLastOpenSslError();
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UniquePtr<EVP_PKEY, EVP_PKEY_Delete> pkey_deleter(pkey);
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if (!asymmetric_key->EvpToInternal(pkey))
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error = TranslateLastOpenSslError();
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else
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key->reset(asymmetric_key.release());
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return error;
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}
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} // namespace keymaster
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