Patent ID: 7596223
Filing Date: 2009-09-29
Classification: H04L

Abstract:
1. A computerized method of establishing a secure wireless communication channel between an access point and a station, the channel being encrypted with a channel key, the method comprising: the access point receiving a connection request from the station to initiate a setup connection between the access point and the station; the access point sending a shared key to the station in response to the connection request if the access point is capable of handling a connection to the station; the access point selecting a secret access point key subsequent to sending the shared key; the access point generating a self-distributed key using the secret access point key; the access point generating a first value using the secret access point key and a second value from the station, wherein the second value has been generated by the station using a secret station key; the access point sending the first value to the station, wherein the station uses the first value and the secret station key to calculate the self-distributed key; the access point receiving an encrypted user name and an encrypted password from the station, wherein the station has encrypted the user name and the password with the self-distributed key; and the access point decrypting the user name and the password to check for validity; the access point encrypting the channel key using the self-distributed key if the user name and the password are valid; and the access point sending the encrypted channel key to the station to cause the station to terminate the setup connection and to establish a secured connection with the access point using the channel key.