Method for obtaining authenticity identification devices for usi

Details Method for obtaining authenticity identification devices for usi Method for obtaining authenticity identification devices for usi

1997-07-03

1999-03-02

Hayes, Gail O.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 25, 235380, 34082534, H04K 100, H04L 900

Patent

active

058781374

ABSTRACT:
Method for obtaining authenticity identification devices for using services in general wherein authenticity is guaranteed without resorting to the manufacturer of the device to ensure its validity; the method has the particularity that it consists in preparing an identification device with a read-only area and at least one writable area; the manufacturer of the device applies a first permanent and always different code to the read-only area. The service provider applies to the writable area a second code obtained by means of one-way functions that have a secret encryption key by computing the first permanent code. The identification device validated with the second code can be verified by means of a decryption key which may optionally be public.

REFERENCES:
patent: 4023012 (1977-05-01), Ano et al.
patent: 4034211 (1977-07-01), Horst et al.
patent: 4476468 (1984-10-01), Goldman
patent: 4734568 (1988-03-01), Watanabe
patent: 4746788 (1988-05-01), Kawana
patent: 4853522 (1989-08-01), Ogasawara
patent: 4879747 (1989-11-01), Leighton et al.
patent: 4910774 (1990-03-01), Barakat
patent: 5120939 (1992-06-01), Claus et al.
patent: 5249230 (1993-09-01), Mihm, Jr.
patent: 5310999 (1994-05-01), Claus et al.
patent: 5544246 (1996-08-01), Mandelbaum et al.
patent: 5557679 (1996-09-01), Julin et al.
patent: 5694471 (1997-12-01), Chen et al.

Affiliated with

Also associated with

Rating

Method for obtaining authenticity identification devices for usi 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 obtaining authenticity identification devices for usi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for obtaining authenticity identification devices for usi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-429974