1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "hks_api.h" 17 18 struct hks_blob { 19 uint8_t type; 20 uint8_t *data; 21 uint32_t size; 22 }; 23 hks_generate_random(struct hks_blob * random)24HKS_API_EXPORT int32_t hks_generate_random(struct hks_blob *random) 25 { 26 if ((random == NULL) || (random->data == NULL)) { 27 return HKS_ERROR_NULL_POINTER; 28 } 29 if ((random->size == 0) || (random->size > HKS_MAX_RANDOM_LEN)) { 30 return HKS_ERROR_INVALID_ARGUMENT; 31 } 32 33 struct HksBlob temp = { random->size, random->data }; 34 return HksGenerateRandom(NULL, &temp); 35 }