transform.h

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/* Copyright (c) 2024 Nordic Semiconductor
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef SECURE_STORAGE_ITS_TRANSFORM_H
#define SECURE_STORAGE_ITS_TRANSFORM_H
 
#include <zephyr/secure_storage/its/common.h>
 
enum { SECURE_STORAGE_ITS_TRANSFORM_MAX_STORED_DATA_SIZE
        = CONFIG_SECURE_STORAGE_ITS_MAX_DATA_SIZE
          + sizeof(secure_storage_packed_create_flags_t)
          + CONFIG_SECURE_STORAGE_ITS_TRANSFORM_OUTPUT_OVERHEAD };
 
#define SECURE_STORAGE_ITS_TRANSFORM_DATA_SIZE(stored_data_len) \
        (stored_data_len - (SECURE_STORAGE_ITS_TRANSFORM_MAX_STORED_DATA_SIZE \
                            - CONFIG_SECURE_STORAGE_ITS_MAX_DATA_SIZE))
 
psa_status_t secure_storage_its_transform_to_store(
                secure_storage_its_uid_t uid, size_t data_len, const void *data,
                secure_storage_packed_create_flags_t create_flags,
                uint8_t stored_data[static SECURE_STORAGE_ITS_TRANSFORM_MAX_STORED_DATA_SIZE],
                size_t *stored_data_len);
 
psa_status_t secure_storage_its_transform_from_store(
                secure_storage_its_uid_t uid, size_t stored_data_len,
                const uint8_t stored_data[static SECURE_STORAGE_ITS_TRANSFORM_MAX_STORED_DATA_SIZE],
                size_t data_size, void *data, size_t *data_len,
                psa_storage_create_flags_t *create_flags);
 
#endif