Original Publication Date: 1978-Mar-01
Included in the Prior Art Database: 2005-Feb-20
This article describes a system for authorizing a plurality of individuals to operate automatic teller machines or the like using personal identification cards issued by a plurality of banks or other card issuing authorities. Each terminal is provided with a Financial Institution Table (FIT) containing encryption keys for use in the verification of correspondence between data read from the identification card and entered by the individual at a keyboard. The FIT is made virtually unlimited in size by providing access by the terminal to a master FIT at the host CPU when a card is presented at the terminal issued by an authority not having an entry in the terminal FIT.