1 /* 2 * Copyright (c) 2022 FuZhou Lockzhiner Electronic Co., Ltd. All rights reserved. 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 /** 17 * @addtogroup Lockzhiner 18 * 19 * @file rand.h 20 */ 21 22 #ifndef LZ_HARDWARE_RAND_H 23 #define LZ_HARDWARE_RAND_H 24 25 /** 26 * @brief rand: get hardware random data. 27 * 28 * 29 * 30 * @param data Indicates the buffer pointer to save random data. 31 * @param len Indicates the length of string. 32 * @return Returns {@link LZ_HARDWARE_SUCCESS} if the random data is got successfully; 33 * returns {@link LZ_HARDWARE_FAILURE} otherwise. For details about other return values, see the chip description. 34 */ 35 unsigned int GetRandData(unsigned char *data, unsigned int len); 36 37 #endif 38 39