20090060200 | Method of Converging Different Group Keys from Island into Single Group Key in Wireless Transport Network - The present invention provides a method of distributing a new group key by a designated group key server, comprising: receiving a group key by a wireless device from each of a newly discovered neighbor. The next step is to receive a list of devices that the newly discovered neighbor connects to. Then, the device determines whether or not the received group key is the same with a new group key and a key index from a neighbor Ni and to associate each the group key with the list of device received from the same neighbor. The device compares all the group keys from the each neighbor and merging an associated lists of device into a single list if the group keys are the same. Subsequently, the device selects the group key with the largest associated list of device be a new selected group key. | 03-05-2009 |