METHOD FOR AUTHENTICATING OF COMMUNICATION DEVICE AND DISTRIBUTING OF SESSION KEY USING UNITARY ALGORITHM

摘要

A specification of the present invention is to provide a session key distribution method with increased stability. The method is a method for distributing a session key between a session key distribution device and a communication device connected to each other by a quantum channel and a public channel. According to the specification of the present invention, the session key distribution method may comprise the steps of: (a) authenticating a communication device using the same long term key information that the session key distribution device previously shares with the communication device; and (b) distributing a session key using a part of quantum signals received in the process of authenticating the communication device by the session key distribution device.