associatedData
OPTIONAL, Additional data to be added to the hash, functionally equivalent to salt or secret, but meant for non-random data. If used, must have a length not greater than 2**32-1 bytes.
OPTIONAL, Additional data to be added to the hash, functionally equivalent to salt or secret, but meant for non-random data. If used, must have a length not greater than 2**32-1 bytes.