from nx_crypto_drbg.h:147
typedef struct NX_CRYPTO_DRBG_OPTIONS_STRUCT
{
NX_CRYPTO_METHOD *crypto_method;
VOID *crypto_metadata;
UINT (*entropy_input)(UCHAR *entropy, UINT *entropy_len, UINT entropy_max_len);
UINT use_df;
UINT prediction_resistance;
UINT security_strength;
} NX_CRYPTO_DRBG_OPTIONS;