Contract management system, contract management method, and contract management program

摘要

PROBLEM TO BE SOLVED: To provide a contract management system in which spoofing is suppressed. SOLUTION: A contract management system 1 for a smart meter 20 accepts a contract change request requested by a personal terminal 10 which has been terminal-authenticated between a personal terminal 10 and a base station 70, and a smart meter 20. And a contract management device 60 for changing the contract. By using the personal terminal 10 that has been terminal-authenticated with the base station 70, it is possible to prevent spoofing when changing the contract. [Selection diagram] Figure 1