Cryptographic traffic identification device and cryptographic traffic identification system including the same

摘要

PROBLEM TO BE SOLVED: To provide an encrypted-traffic discrimination device that acquires or computes data of characteristics of traffic being communicated over a network and, based on this data, correctly determines whether or not the traffic is an encrypted text, and to provide a system with the discrimination device.;SOLUTION: The encrypted-traffic discrimination device 1 includes: an input interface 11 inputting traffic; a flow discrimination section 12 discriminating the input traffic into separate flows; a data accumulation section 13 accumulating characteristic amount data; a selective data calculation section 14 executing an evaluation computation on the basis of the characteristic amount data; a calculation result determination section 15 which executes, based on the evaluation computation value, threshold value determination to determine whether or not the traffic is encrypted and, if the traffic is determined to be encrypted, which encryption format the traffic is encrypted with; and an output interface 16 outputting the result of the determination to the outside.;COPYRIGHT: (C)2010,JPO&INPIT