Cryptography – Communication system using cryptography – Wireless communication
Reexamination Certificate
2011-06-07
2011-06-07
Brown, Christopher J (Department: 2439)
Cryptography
Communication system using cryptography
Wireless communication
C713S168000
Reexamination Certificate
active
07957533
ABSTRACT:
A method of establishing authentication keys at both a network and mobile equipment are provided. The authentication key generated by the mobile equipment is based on both mobile keys and network keys, which are each calculated by the mobile equipment. The authentication key generated by the network is based on both mobile keys and network keys, which are each calculated by the network. The mobile keys are calculated from a challenge generated by the mobile equipment and the network keys generated by the mobile based on a challenge generated by network.
REFERENCES:
patent: 1 001 570 (2000-05-01), None
J.S. Stach et al., “An Enhanced Authentication Protocol for Personal Communication Systems,” Application-Specific Software Engineering Technology, 1998. Asset-98. Proceedings. 1998 IEEE Workshop on Richardson, TX, USA Mar. 26-28, 1998, Los Alamitos, CA, USA, IEEE Comput. Soc, US, Mar. 26, 1998, pp. 128-132, XP010289105, ISBN: 978-0-8186-8582-8 p. 131-132.
International Search Report and Written Opinion dated Jan. 9, 2009.
International Preliminary Examination Report dated Apr. 15, 2010.
Alcatel-Lucent USA Inc.
Brown Christopher J
Harness & Dickey & Pierce P.L.C.
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