Abstract: A method for verifying a request signal from a client in a Web-based game including sending a start signal of a game mission to a server; sending an acquired score and a completion time of a sub-mission of the game mission to the server, and completing the sum-mission by sending a unique key corresponding to the completion of the sub-mission to the client on the basis of the completion time and the acquired score; and sending a retransmission unique key and reward requesting information corresponding to the completion of the game mission to the server when the sub-mission is completed, and approving the completion of the game mission of the client on the basis of the retransmission unique key and information on the completion of the sub-mission. Accordingly, it is possible to prevent the client from abnormally acquiring a point or an item.

Abstract: A method for verifying a request signal from a client in a Web-based game including sending a start signal of a game mission to a server; sending an acquired score and a completion time of a sub-mission of the game mission to the server, and completing the sum-mission by sending a unique key corresponding to the completion of the sub-mission to the client on the basis of the completion time and the acquired score; and sending a retransmission unique key and reward requesting information corresponding to the completion of the game mission to the server when the sub-mission is completed, and approving the completion of the game mission of the client on the basis of the retransmission unique key and information on the completion of the sub-mission. Accordingly, it is possible to prevent the client from abnormally acquiring a point or an item.