Method of mobile unit registration and method of IC card registr

Details Method of mobile unit registration and method of IC card registr Method of mobile unit registration and method of IC card registr

1997-04-03

1999-03-16

Barron, Jr., Gilberto

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 24, 455411, H04L 932, H04B 726

Patent

active

058839607

ABSTRACT:
To prevent illegal duplication of an ID containing type mobile unit, and illegal duplication of an IC card for an IC card insertion type mobile unit, in manufacturing a COB device, a public key KE.sub.COB, corresponding to a common secret key KD.sub.COB determined through consultation among communications carriers, is stored into a ROM in an unalterable form. In manufacturing a mobile unit, KE.sub.Cj that corresponds to a secret key KD.sub.Cj uniquely assigned to each communications carrier, is signature-encrypted with KD.sub.COB. The result E(KD.sub.COB, KE.sub.Cj) is entered into a COB device to write in KE.sub.Cj ; the COB device 22 is then assembled, prior to shipment, into the mobile unit into which a mobile unit secret key KD.sub.MSNi and public key KE.sub.MSNi have been stored. In registration of the mobile unit, E(KD.sub.Cj, ID) received from the communications carrier is entered into the COB device 22, thereby writing personal information ID. For a readout, KD.sub.MSNi is input to read out the ID.

REFERENCES:
patent: 5077740 (1991-12-01), D'Amico et al.
patent: 5150412 (1992-09-01), Maru
patent: 5386468 (1995-01-01), Akiyama et al.
patent: 5390252 (1995-02-01), Suzuki et al.
patent: 5392356 (1995-02-01), Konno et al.
patent: 5398285 (1995-03-01), Borgelt et al.
patent: 5402490 (1995-03-01), Mihm, Jr.
patent: 5557679 (1996-09-01), Julin et al.

Affiliated with

Also associated with

Rating

Method of mobile unit registration and method of IC card registr 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 of mobile unit registration and method of IC card registr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of mobile unit registration and method of IC card registr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-824065