| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an illegal act such as pretense or move falsification in execution of a network competition game, prevent generation of unfairness in a suspension of the game caused by a communication line failure or a competition over two days, and dispense with a server managing the competition. SOLUTION: In this method, a terminal acquires information about a personal key of its own station, a public key and a certificate, acquires destination information showing an opponent's address, exchanges information about a public key certificate, attaches a signature to each information sent to an opponent's terminal, confirms justice of information inputted from the opponent's terminal by the signature, confirms the justice of the move information inputted from the opponent's terminal, reflects it on display output of the own station, inputs the move information from the opponent, measures a consumption time from the input of the move information from the opponent to a return of a next move of the own station, and attaches the temporal information to the next move information sent from the own station.</p> |
