Security system employing digitized personal physical characteristics

Claim 1

A security system comprising a locking device having computing means, a master key containing recorded information, a slot in said locking device for receiving the master key, said slot connected to said computing means and said master key carrying means for passing said recorded information through said connection from the slot to the computing means, a slave key, a keyhole in said locking device for receiving the slave key, said keyhole connected to said computing means, said computing means responsive to said recorded information carried by said master key to program said computing means to respond to, and only to, a digitized representation of a personal characteristic of an individual received from said slave key for actuating said locking device, said digitized personal characteristic being carried by said slave key, said slave key carrying means for digitizing and storing said personal characteristic and also carrying electrical contacts for passing said personal characteristic digital data through said connection from the keyhole to the computing means, said computing means responding to the identity of said digitized personal characteristic data received from said slave key with said information received from said master key to actuate the locking device.