System for allocating a chip card to a network operator

Details System for allocating a chip card to a network operator System for allocating a chip card to a network operator

2005-12-06

2011-10-04

Song, Hosuk (Department: 2435)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S155000, C713S161000, C713S168000, C713S170000, C713S176000, C380S028000, C380S247000, C380S248000, C726S002000, C726S009000

Reexamination Certificate

active

08032748

ABSTRACT:
A chip card needs to be allocated in a secured manner to a network operator via a personalization center in order to determine a final authentication key which is attributed to a subscriber of the operator without its being transmitted via a network. The following is loaded into a card by a module: an algorithm and an allocation key; an algorithm for determination of the authentication key and at least one intermediate authentication key. A module transmits an allocation message which includes a final identity number, a random number and an allocation signature from the center to the card. The card authenticates the message by means of the allocation algorithm as a function of the allocation key and the allocation signature, and determines the final authentication key as a function of the intermediate key and the random number.

REFERENCES:
patent: 5557679 (1996-09-01), Julin et al.
patent: 6976011 (2005-12-01), Capitant et al.
patent: 7023994 (2006-04-01), Dupre
patent: 2003/0033527 (2003-02-01), Klosa et al.
patent: 2004/0102181 (2004-05-01), Horn
patent: 2004/025896 (2004-03-01), None
PCT/ISA/210 for PCT/EP2005/056535 dated Apr. 27, 2006.

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