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IP.com Disclosure Number: IPCOM000069016D
Original Publication Date: 1978-Mar-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Anderson, RW Brock, SF Gee, ML [+details]

Abstract

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.