Cryptography – Communication system using cryptography – Wireless communication
Reexamination Certificate
2011-06-14
2011-06-14
Zand, Kambiz (Department: 2434)
Cryptography
Communication system using cryptography
Wireless communication
C713S182000
Reexamination Certificate
active
07961883
ABSTRACT:
In one embodiment, a scheme is provided for securing a personalized indicium assigned to a mobile communications device. Upon detecting at a network node that an address associated with the mobile communications device has changed, a challenge-and-response procedure is negotiated between the mobile communications device and the network node for authenticating the personalized indicium using a shared authentication key.
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Adams Neil Patrick
Bajar David
Brown Michael Kenneth
Gao Wen
Godfrey James
Kaplan Benjamin A
Research In Motion Limited
The Danamraj Law Group, P.C.
Zand Kambiz
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