INFORMATION ACQUISITION METHOD, COMMUNICATION SYSTEM AND COMMUNICATION TERMINAL

摘要

PROBLEM TO BE SOLVED: To acquire highly reliable information from a communication terminal of another user.

SOLUTION: The information acquisition method in a communication system including a communication terminal 1 and a communication terminal 2 includes: a step of transmitting a request of predetermined information from the communication terminal 1 to the communication terminal 2; a response step of transmitting response data to the request from the communication terminal 2 to the communication terminal 1; an authentication data transmission step of transmitting authentication data concerned with the predetermined information from the communication terminal 1 to the communication terminal 2 according to user's decision results about the reliability of the response data; a step of transmitting the response data and the authentication data to the request of the predetermined request from the communication terminal 2 to the communication terminal 1 when the communication terminal 2 stores the authentication data; and a decision step of allowing the communication terminal 1 to determine the reliability of the response data based on the authentication data received from the communication terminal 2.

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