US 4,471,216 AGranted

System and process for identification of persons requesting access to particular facilities

AssigneeCompagnie Internationale pour l'Informatique CII-Honeywell Bull (Societe Anonyme)

InventorRobert J. L. Herve

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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.

Claims7

Dependent claims

A process for validating the identification of persons by the presentation of a portable object carried by a person to an apparatus, the portable object including a first memory within which are recorded a first secret code S, a first identification code I.sub.n and a first program p, and a first processor for processing the data recorded in the first portable object memory, and the apparatus including a second memory within which are recorded a second secret code S, a second identification code I.sub.n and a second program p, and a second processor for processing the data recorded in the second apparatus memory, the second codes S and I.sub.n and the second program p recorded in the second memory of the apparatus having a predetermined relationship to the first codes and the first program recorded in the first memory of the portable object;

said process comprising:
reading the first identification code I.sub.n recorded in the first memory of the portable object;
identifying whether the first identification code is plausible;
generating a random number E and transmitting the random number to the first and second processors if the first identification code I.sub.n is plausible;
calculating in the two processors respective codes R and R' as a function of the random number of the respective programs p and of the respective identification I.sub.n and secret S codes;
and
comparing the codes R and R' calculated by the two processors to verify the verisimilitude of the secret code S and of the program p recorded in the memory of the portable object.

4 more elements

A system for validating identification of persons, said system comprising:

a portable object adapted to be carried by a person, the portable object including a first memory adapted to have recorded therein a secret code S, an identification code I.sub.n and a program p, and a first processor for processing the data recorded in said first memory;
and
a facility having means for receiving said portable object and including a second memory wherein are recorded a secret code S, an identification code I.sub.n and a program p, and a second processor for processing the data recorded in said second memory, the codes S and I.sub.n and program p stored in said second memory being identical to those recorded in the first memory of said portable object, said facility further including first means for identifying the identification code I.sub.n recorded in the first memory of the portable object, second means for generating a random number signal E and for transmitting the random number signal to each of said processors, each of said processors being responsive to the random number signal for generating respective code signals R and R' which are a function of the random number signal E transmitted by the said second means and of the identification I.sub.n and secret S codes recorded in the first and second memories, and third means for comparison of the codes R and R' generated by the said first and second processors to verify the verisimilitude of the secret code S and of the program p recorded in the portable object.

Dependencies are inferred from the claim text.

Facts

Application: 06/200,785Filed 27 Oct 1980
Priority: FR 79 277059 Nov 1979
Granted: 11 Sep 1984
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06Q 20/341
Using cards, e.g. integrated circuit [IC] cards or magnetic cards: active cards, i.e. cards including their own processing means, e.g. including…
G06Q 20/40975
Using mutual authentication between devices and transaction partners: using encryption therefor
G07F 7/1008
Together with a coded signal , e.g. in the form of personal identification information, like personal identification number [PIN] or biometric…
G06Q
Information and communication technology [ict] specially adapted for administrative, commercial, financial, managerial