System and process for identification of persons requesting acce

Details System and process for identification of persons requesting acce System and process for identification of persons requesting acce

1980-10-27

1984-09-11

Rubinson, Gene Z.

Registers

Systems controlled by data bearing records

Credit or identification card systems

235379, 235375, 235487, 235492, G06K 1906

Patent

active

044712162

ABSTRACT:
The user has a credit card incorporating electronic devices and/or circuits. The facility which is to be protected has an electronic device and/or circuit analogous to that of the credit card. The devices of the credit card and of the facility contain in their respective memories a secret code S, an identification code I.sub.n, and a program p. The facility which is to be protected has available a generator of a random code E which is transmitted into each of the devices when a request for access is made. The devices within the card and the facility each calculate the function R=p(S, E, I.sub.n), and a comparator situated in the facility which is to be protected compares the functions supplied by each of the devices to allow or deny access of the person to the said facility.

REFERENCES:
patent: 4234932 (1980-11-01), Gorgens
patent: 4268715 (1981-05-01), Atalla
patent: 4281215 (1981-07-01), Atalla
patent: 4283599 (1981-08-01), Atalla
patent: 4295039 (1981-10-01), Stuckert

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