/*
|
* Copyright 2018 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/km_openssl/triple_des_key.h>
|
|
#include <assert.h>
|
|
#include <keymaster/new>
|
|
#include <openssl/err.h>
|
#include <openssl/rand.h>
|
|
#include "triple_des_operation.h"
|
|
namespace keymaster {
|
|
static TripleDesOperationFactory encrypt_factory(KM_PURPOSE_ENCRYPT);
|
static TripleDesOperationFactory decrypt_factory(KM_PURPOSE_DECRYPT);
|
|
OperationFactory* TripleDesKeyFactory::GetOperationFactory(keymaster_purpose_t purpose) const {
|
switch (purpose) {
|
case KM_PURPOSE_ENCRYPT:
|
return &encrypt_factory;
|
case KM_PURPOSE_DECRYPT:
|
return &decrypt_factory;
|
default:
|
return nullptr;
|
}
|
}
|
|
keymaster_error_t TripleDesKeyFactory::LoadKey(KeymasterKeyBlob&& key_material,
|
const AuthorizationSet& /* additional_params */,
|
AuthorizationSet&& hw_enforced,
|
AuthorizationSet&& sw_enforced,
|
UniquePtr<Key>* key) const {
|
if (!key) return KM_ERROR_OUTPUT_PARAMETER_NULL;
|
|
keymaster_error_t error = KM_ERROR_OK;
|
key->reset(new (std::nothrow)
|
TripleDesKey(move(key_material), move(hw_enforced), move(sw_enforced), this));
|
if (!key->get()) error = KM_ERROR_MEMORY_ALLOCATION_FAILED;
|
return error;
|
}
|
|
keymaster_error_t TripleDesKeyFactory::validate_algorithm_specific_new_key_params(
|
const AuthorizationSet& key_description) const {
|
if (key_description.Contains(TAG_MIN_MAC_LENGTH)) return KM_ERROR_INVALID_TAG;
|
return KM_ERROR_OK;
|
}
|
|
} // namespace keymaster
|
