COMMUNICATION DEVICE, COMMUNICATION METHOD, SYSTEM, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a communication device, a communication method, a system and a program which enable nodes to dynamically share a key at network access authorization.SOLUTION: Provided is a communication device which comprises an acquisition unit, a generation unit and a communication unit. The acquisition unit acquires a master key from a first communication device. The generation unit generates an individual key by using the master key. The communication unit performs communication with a second communication device by using the individual key.