AESCTRDRBGX4_s.h

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/*
 * Copyright (c) 2022 Texas Instruments Incorporated - https://www.ti.com
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#ifndef ti_drivers_aesctrdrbg_AESCTRDRBGX4_s__include
#define ti_drivers_aesctrdrbg_AESCTRDRBGX4_s__include

#include <stdint.h>

#include <ti/drivers/crypto/CryptoCC26X4_s.h>
#include <ti/drivers/AESCTRDRBG.h>

#include <third_party/tfm/interface/include/psa/error.h>
#include <third_party/tfm/interface/include/psa/service.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * AES CTR DRBG secure message types
 *
 * The underlying AES CTR DRBG driver does not support callback return behavior,
 * therefore this secure service can only support polling mode. If the non-secure
 * client specifies blocking mode, polling mode will be automatically substituted.
 */
#define AESCTRDRBG_S_MSG_TYPE_CONSTRUCT \
    (CRYPTO_S_MSG_TYPE_INDEX_AESCTRDRBG | ((int32_t)1 << (CRYPTO_S_MSG_TYPE_SHIFT + 0U)))
#define AESCTRDRBG_S_MSG_TYPE_OPEN (CRYPTO_S_MSG_TYPE_INDEX_AESCTRDRBG | ((int32_t)1 << (CRYPTO_S_MSG_TYPE_SHIFT + 1U)))
#define AESCTRDRBG_S_MSG_TYPE_CLOSE \
    (CRYPTO_S_MSG_TYPE_INDEX_AESCTRDRBG | ((int32_t)1 << (CRYPTO_S_MSG_TYPE_SHIFT + 2U)))
#define AESCTRDRBG_S_MSG_TYPE_RESEED \
    (CRYPTO_S_MSG_TYPE_INDEX_AESCTRDRBG | ((int32_t)1 << (CRYPTO_S_MSG_TYPE_SHIFT + 3U)))
#define AESCTRDRBG_S_MSG_TYPE_GET_RANDOM_BYTES \
    (CRYPTO_S_MSG_TYPE_INDEX_AESCTRDRBG | ((int32_t)1 << (CRYPTO_S_MSG_TYPE_SHIFT + 4U)))
#define AESCTRDRBG_S_MSG_TYPE_GENERATE_KEY \
    (CRYPTO_S_MSG_TYPE_INDEX_AESCTRDRBG | ((int32_t)1 << (CRYPTO_S_MSG_TYPE_SHIFT + 5U)))

/*
 * Config pool size determines how many dynamic driver instances can be created
 * by the non-secure client using AESCTRDRBG_construct().
 */
#ifndef CONFIG_AESCTRDRBG_S_CONFIG_POOL_SIZE
    #define CONFIG_AESCTRDRBG_S_CONFIG_POOL_SIZE 1
#endif

/*
 * ========= AES CTR DRBG Secure Message Structs =========
 * These secure message structs correspond to the secure message types defined
 * above. Together, they are used by non-secure client to make PSA calls to the
 * AES CTR DRBG secure service. There is a single input vector for the PSA call
 * which is a pointer to secure message struct. If the underlying function
 * has a return value, there is a single output vector which is a pointer to
 * storage for the return value.
 */
typedef struct
{
    AESCTRDRBG_Config *config;
    const AESCTRDRBG_Params *params;
} AESCTRDRBG_s_ConstructMsg;

typedef struct
{
    uint_least8_t index;
    const AESCTRDRBG_Params *params;
} AESCTRDRBG_s_OpenMsg;

typedef struct
{
    AESCTRDRBG_Handle handle;
} AESCTRDRBG_s_CloseMsg;

typedef struct
{
    AESCTRDRBG_Handle handle;
    const void *seed;
    const void *additionalData;
    size_t additionalDataLength;
} AESCTRDRBG_s_ReseedMsg;

typedef struct
{
    AESCTRDRBG_Handle handle;
    void *randomBytes;
    size_t randomBytesSize;
} AESCTRDRBG_s_GetRandomBytesMsg;

typedef struct
{
    AESCTRDRBG_Handle handle;
    CryptoKey *randomKey;
} AESCTRDRBG_s_GenerateKeyMsg;

psa_status_t AESCTRDRBG_s_handlePsaMsg(psa_msg_t *msg);

void AESCTRDRBG_s_init(void);

#ifdef __cplusplus
}
#endif

#endif /* ti_drivers_aesctrdrbg_AESCTRDRBGX4_s__include */