mbedtls_hmac_drbg_reseed() function

The HMAC_DRBG context.

Additional data to add to the state. If this is \c NULL, there is no additional data and \p len should be \c 0.

The length of the additional data. This must be at most #MBEDTLS_HMAC_DRBG_MAX_INPUT and also at most #MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT - \c entropy_len where \c entropy_len is the entropy length (see mbedtls_hmac_drbg_set_entropy_len()).

This function updates the state of the HMAC_DRBG context.

This function resets HMAC_DRBG context to the state immediately after initial call of mbedtls_hmac_drbg_init().

HMAC_DRBG context initialization. This function makes the context ready for mbedtls_hmac_drbg_seed(), mbedtls_hmac_drbg_seed_buf() or mbedtls_hmac_drbg_free().

This function turns prediction resistance on or off. The default value is off.

This function writes a seed file.

This function sets the amount of entropy grabbed on each seed or reseed. See the documentation of mbedtls_hmac_drbg_seed() for the default value.

Set the reseed interval. The reseed interval is the number of calls to mbedtls_hmac_drbg_random() or mbedtls_hmac_drbg_random_with_add() after which the entropy function is called again. The default value is #MBEDTLS_HMAC_DRBG_RESEED_INTERVAL.

This function reads and updates a seed file. The seed is added to this instance.