Card verification system using stored functions

Registers – Systems controlled by data bearing records – Banking systems

Patent

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Details

235380, G06F 1530, G06K 500

Patent

active

042191513

ABSTRACT:
A verification system for determining whether a person is authorized to use a connected system is disclosed as comprising reading means for reading first data from a card proffered by the person who intends to use the connected system, input means manually operable by the person to enter second data into the verification system, the second data being different from the first data, function storage means for storing a plurality of different functions, each having at least one variable, and, in response to an address code formed from a portion of at least one of the read first data and the entered second data, for looking up and generating a specific stored function, calculating means for substituting a remaining portion of at least one of the first and second data into the variable of the generated specific function and for calculating a value from said function, and checking means for checking whether a predetermined relationship exists between a further remaining portion of at least one of the first and second data, and the calculated value, the existence of said predetermined relationship being operative to allow the person to use the connected system.

REFERENCES:
patent: 3588449 (1971-06-01), Paterson
patent: 3665162 (1972-05-01), Yamamoto et al.
patent: 3702392 (1972-11-01), St. Jean
patent: 3740530 (1973-06-01), Hoffer et al.
patent: 3794813 (1974-02-01), Spetz
patent: 3905461 (1975-09-01), Davies et al.
patent: 4016405 (1977-04-01), McCune et al.

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