Hash Functions

function farm_fingerprint $1($1) returns bigint
	where $1 in (string, bytes)

function md5 $1($1) returns bytes
	where $1 in (string, bytes)

function sha1 $1($1) returns bytes
	where $1 in (string, bytes)

function sha256 $1($1) returns bytes
	where $1 in (string, bytes)

function sha512 $1($1) returns bytes
	where $1 in (string, bytes)