POSITIONAL INFORMATION VERIFICATION DEVICE, REPEATING DEVICE, MOBILE DEVICE, POSITIONAL INFORMATION VERIFICATION PROGRAM, REPEATING PROGRAM AND MOBILE PROGRAM

摘要

PROBLEM TO BE SOLVED: To verify whether the positional information of an on-vehicle device 200 is legal positional information.SOLUTION: An on-vehicle device 200 receives first satellite message, and transmits a mobile message including the first satellite message, mobile positional information and a mobile signature. A repeating device 300 receives the mobile message, receives second satellite message, and transmits a relay message including the mobile message, second satellite message, relay positional information and a relay signature. A positional information management device 400 receives the relay message, and verifies the mobile positional information based on the relay message.