Patent ID: 8588419

Claim:
A wireless communication terminal comprising: an antenna: a wireless communication circuit including: a receiver configured to receive, via the antenna, a first frame from a first wireless communication apparatus belonging to a first communication group, the first frame including first security information indicating a first encryption method, the first encryption method to be applied to transmission of data frames within the first communication group, the first communication group consisting of a plurality of wireless communication apparatuses including the first wireless communication apparatus, and a transmitter configured to transmit, via the antenna, a second frame to the first wireless communication apparatus, after a determination that a second encryption method is usable in the first communication group based on the first security information, the second frame requesting a permission to communicate within the first communication group and including second security information indicating the second encryption method which is supported by the wireless communication circuit, and configured to transmit a data frame after the permission is obtained, the data frame including a frame body and the frame body including data encrypted by the second encryption method.