COMMUNICATION PARTNER AUTHENTICATION METHOD AND AUTHENTICATION COMMUNICATION TERMINAL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To authenticate that a communication partner is an intended partner. SOLUTION: An authentication communication terminal device (100) generates a request for confirming information by an authenticated person verifying part (125), and sends it to an authenticated communication terminal device (200) a confirmation information presenting means (S223) of the authenticated communication terminal device generates confirmation information to the request, and responds thereto by the 2nd communication means different from the 1st communication means.