SUPPORT OF MULTIPLE PRE-SHARED KEYS IN ACCESS POINT

Title:

SUPPORT OF MULTIPLE PRE-SHARED KEYS IN ACCESS POINT

Document Type and Number:

WIPO Patent Application WO/2010/053889

Kind Code:

A3

Abstract:

A method of operating an access point (AP) configured to support multiple pre-shared keys. Each client device associated with the AP is provisioned with a key. To authenticate the client device, the AP determines which pre-shared key (PSK) of the multiple supported pre-shared keys, if any, matches information including the key received from the client device. When the information matches, the client device is allowed to connect to the AP. Provisioning the AP with multiple pre-shared keys allows selectively disconnecting associated client devices from the AP. Removing a PSK of the multiple pre-shared keys supported by the AP and disconnecting a client device that uses this PSK does not disconnect the rest of the client devices using different keys to access the AP. Moreover, when a lifetime of a PSK expires, the PSK is removed and each of the client devices using the PSK is disconnected.

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Inventors:

SHEN HUI (US)
JIANG XIONG (US)
BANERJEE ANIRBAN (US)
LIU HONG (US)
MANDHANA TAROON (US)

Application Number:

PCT/US2009/063044

Publication Date:

July 08, 2010

Filing Date:

November 03, 2009

Export Citation:

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Assignee:

MICROSOFT CORP (US)

International Classes:

H04W12/04; H04W88/08

Foreign References:

US20070121565A1	2007-05-31
US20040240412A1	2004-12-02
US20070264973A1	2007-11-15

Other References: