AUTHENTICATION SYSTEM, SERVER COMPUTER, PROGRAM, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To perform authentication processing which has high safety and is efficient with small loads on terminals, in communication sessions between two terminals which can be connected through a network.

SOLUTION: An initiator 3 creates a transmission text 2000 and transmits it to a responder 5. The responder 5 performs authentication by a transmitted D-ID. The responder 5 creates a shared seed and creates transmission data 3000 and transmits the data to the initiator 3 and creates data for a next (i+1)th session. The initiator 3 checks Dos attack from received transmission data and performs authentication by the received D-ID. The initiator 3 creates a shared seed and creates data for the next (i+1)th session.

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