Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2003-04-17
2008-03-25
Zand, Kambiz (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S168000, C380S047000, C705S067000
Reexamination Certificate
active
07350077
ABSTRACT:
A method and system for handling roaming mobile nodes in a wireless network. The system uses a Subnet Context Manager to store current Network session keys, security policy and duration of the session (e.g. session timeout) for mobile nodes, which is established when the mobile node is initially authenticated. Pairwise transit keys are derived from the network session key. The Subnet Context Manager handles subsequent reassociation requests. When a mobile node roams to a new access point, the access point obtains the network session key from the Subnet Context Manager and validates the mobile node by computing a new pairwise transient key from the network session key.
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Cam Winget Nancy
Griswold Victor J.
Meier Robert
Rebo Richard D.
Smith Douglas
Cisco Technology Inc.
Tolentino Roderick
Tucker Ellis & West LLP
Zand Kambiz
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