US 7,526,092 B2
Rekey operation with multiplexing capability
Gregory L. Chesson, Palo Alto, Calif. (US); and Nancy Cam-Winget, Mountain View, Calif. (US)
Assigned to Atheros Communications, Inc., Santa Clara, Calif. (US)
Filed on Jun. 15, 2007, as Appl. No. 11/764,151.
Application 11/764151 is a division of application No. 10/095178, filed on Mar. 08, 2002, granted, now 7,245,724.
Prior Publication US 2007/0253554 A1, Nov. 01, 2007
Int. Cl. H04K 1/00 (2006.01); H04L 9/00 (2006.01)
U.S. Cl. 380—273  [380/270; 380/277; 380/278] 31 Claims
OG exemplary drawing
 
1. A system for updating an encryption key, the system including:
a rekey coordinator implemented in a first station; and
a rekey participant implemented in a second station,
wherein one of the rekey coordinator and the rekey participant can initiate an enable exchange, the enable exchange triggering an activation of a new key and reserving an auxiliary location for the new key, and
wherein only the rekey coordinator can initiate a transition exchange, the transition exchange synchronizing a transition from an old key to the new key, the auxiliary storage area being a temporary location on a computer-readable medium for the new key during a time interval when both the old key and the new key can be active.