Method for the authentication of a portable object by an offline

Details Method for the authentication of a portable object by an offline Method for the authentication of a portable object by an offline

1994-06-07

1996-06-18

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

34082531, G07D 700

Patent

active

055282318

ABSTRACT:
A process for authentication by an offline terminal (1) of a portable object (2) including a processing circuit (4) able to deliver a secondary value (Rx) which the function of a primary value (Qi) transmitted by the terminal. An authentication table (5) is placed in the terminal which associates a series of primary values (Qi) and a series of control values (Ui), each control value being the transformation by a oneway function of the secondary value (Rx) calculated by the processing circuit of an authentic portable object. At the time of a connection of a portable object with the terminal, one of the primary values (Qi) from the table is transmitted to the portable object, the one-way function is applied to the secondary value (Rx) received from the portable object, and the result obtained is compared with the corresponding control value (Ui) from the table.

REFERENCES:
patent: 4283599 (1981-08-01), Atalla
patent: 4630201 (1986-12-01), White
patent: 4719566 (1988-01-01), Kelley
patent: 4731841 (1988-03-01), Rosen et al.
patent: 4779090 (1988-10-01), Micznik et al.
patent: 4829296 (1989-05-01), Clark et al.
patent: 4935962 (1990-06-01), Austin
"Cryptographic Identification Methods for Smart Cards in the Process of Standardization", Hans-Peter Konigs, IEEE Communicatins Magazine, vol. 29, No. 6, Jun. 1991, Piscataway, N.J., pp. 42-48.

Affiliated with

Also associated with

Rating

Method for the authentication of a portable object by an offline does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the authentication of a portable object by an offline, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the authentication of a portable object by an offline will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-225875