/***************************************************************************//** * \file cy_crypto_core_prng.h * \version 2.40 * * \brief * This file provides provides constant and parameters for the API of the PRNG * in the Crypto block driver. * ******************************************************************************** * Copyright 2016-2020 Cypress Semiconductor Corporation * SPDX-License-Identifier: Apache-2.0 * * 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. *******************************************************************************/ #if !defined (CY_CRYPTO_CORE_PRNG_H) #define CY_CRYPTO_CORE_PRNG_H #include "cy_device.h" #if defined (CY_IP_MXCRYPTO) #include "cy_crypto_common.h" #if defined(__cplusplus) extern "C" { #endif #if (CPUSS_CRYPTO_PR == 1) #include "cy_crypto_core_prng_v1.h" #include "cy_crypto_core_prng_v2.h" typedef cy_en_crypto_status_t (*cy_crypto_prng_init_func_t)(CRYPTO_Type *base, uint32_t lfsr32InitState, uint32_t lfsr31InitState, uint32_t lfsr29InitState); typedef cy_en_crypto_status_t (*cy_crypto_prng_func_t)(CRYPTO_Type *base, uint32_t max, uint32_t *randomNum); /** * \addtogroup group_crypto_lld_rng_functions * \{ */ /******************************************************************************* * Function Name: Cy_Crypto_Core_Prng_Init ****************************************************************************//** * * Initializes the PRND parameters. * Invoking this function causes a restart of the pseudo-random sequence. * * \param base * The pointer to the CRYPTO instance. * * \param lfsr32InitState * A non-zero seed value for the first LFSR. * \param lfsr31InitState * A non-zero seed value for the second LFSR. * \param lfsr29InitState * A non-zero seed value for the third LFSR. * * \return * \ref cy_en_crypto_status_t * *******************************************************************************/ __STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Prng_Init(CRYPTO_Type *base, uint32_t lfsr32InitState, uint32_t lfsr31InitState, uint32_t lfsr29InitState) { cy_en_crypto_status_t tmpResult; if (CY_CRYPTO_V1) { tmpResult = Cy_Crypto_Core_V1_Prng_Init(base, lfsr32InitState, lfsr31InitState, lfsr29InitState); } else { tmpResult = Cy_Crypto_Core_V2_Prng_Init(base, lfsr32InitState, lfsr31InitState, lfsr29InitState); } return tmpResult; } /******************************************************************************* * Function Name: Cy_Crypto_Core_Prng ****************************************************************************//** * * Generates a Pseudo Random Number. * * \param base * The pointer to the CRYPTO instance. * * \param max * The maximum value of a random number. * * \param randomNum * The pointer to a variable to store the generated pseudo random number. * * \return * \ref cy_en_crypto_status_t * *******************************************************************************/ __STATIC_INLINE cy_en_crypto_status_t Cy_Crypto_Core_Prng(CRYPTO_Type *base, uint32_t max, uint32_t *randomNum) { cy_en_crypto_status_t tmpResult; if (CY_CRYPTO_V1) { tmpResult = Cy_Crypto_Core_V1_Prng(base, max, randomNum); } else { tmpResult = Cy_Crypto_Core_V2_Prng(base, max, randomNum); } return tmpResult; } /** \} group_crypto_lld_rng_functions */ #endif /* #if (CPUSS_CRYPTO_PR == 1) */ #if defined(__cplusplus) } #endif #endif /* CY_IP_MXCRYPTO */ #endif /* #if !defined (CY_CRYPTO_CORE_PRNG_H) */ /* [] END OF FILE */