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/*
* Copyright (c) 2021, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef __TFM_PLAT_CRYPTO_NV_SEED_H__
#define __TFM_PLAT_CRYPTO_NV_SEED_H__
#include <stddef.h>
#ifndef NV_SEED_FILE_ID
#define NV_SEED_FILE_ID 9
#endif
#define TFM_CRYPTO_NV_SEED_SUCCESS 0
#define TFM_CRYPTO_NV_SEED_FAILED -1
/**
* \brief Read Seed from NV storage.
*
* \param[out] buf Buffer to store the seed
* \param[in] buf_len Buffer length to read
*
* \return Return TFM_CRYPTO_NV_SEED_SUCCESS on success,
* or TFM_CRYPTO_NV_SEED_FAILED on failure.
*/
int tfm_plat_crypto_nv_seed_read(unsigned char *buf, size_t buf_len);
/**
* \brief Write Seed to NV storage.
*
* \param[in] buf Buffer storing the seed
* \param[in] buf_len Buffer length to write
*
* \return Return TFM_CRYPTO_NV_SEED_SUCCESS on success,
* or TFM_CRYPTO_NV_SEED_FAILED on failure.
*/
int tfm_plat_crypto_nv_seed_write(unsigned char *buf, size_t buf_len);
#endif /* __TFM_PLAT_CRYPTO_NV_SEED_H__ */
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