from nx_crypto_phash.h:64
typedef struct NX_CRYPTO_PHASH_STRUCT
{
UCHAR *nx_crypto_phash_secret;
NX_CRYPTO_KEY_SIZE nx_crypto_phash_secret_length;
UCHAR *nx_crypto_phash_seed;
UINT nx_crypto_phash_seed_length;
UCHAR *nx_crypto_phash_temp_A;
UINT nx_crypto_phash_temp_A_size;
NX_CRYPTO_METHOD *nx_crypto_hmac_method;
UCHAR *nx_crypto_hmac_metadata;
UINT nx_crypto_hmac_metadata_size;
UCHAR *nx_crypto_hmac_output;
UINT nx_crypto_hmac_output_size;
} NX_CRYPTO_PHASH;