Patent ID: 7788492

Claim:
A method, comprising: sending a probe request to an access point, the probe request comprising data representative of a previously established pairwise master key; authenticating with the access point; establishing a pairwise transient key (PTK) derived from the previously established pairwise master key (PMK) with the access point; and roaming to the access point by performing a re-association exchange with the access point; wherein the re-association exchange occurs after authenticating with the access point and after establishing a pairwise transient key with the access point; and wherein the re-association exchange comprises: issuing a re-association request that includes issuing a resuscitation request as Authenticate PTK (SRandom, PTKID MIC); receiving a re-association response that comprises a groupwise transient key (GTK) from the access point as Authenticate PTK (ARandom, SRandom, PTKID, GTK, GTKID, MIC); and, sending a re-association confirm as Group Key Confirm (ARandom, MIC).