| 摘要 |
Tampering monitoring system 10d can detect whether protection control module is tampered with even if some of detection modules are tampered with. Tampering monitoring system 10d includes protection control module 120d, n detection modules, and management device 200d. Protection control module 120d includes: generation unit 310d generating d pieces of distribution data from computer program, n and d being positive integers, d smaller than n; selection unit 311 d selecting d detection modules; and distribution unit 302d distributing d pieces of distribution data to d detection modules. Each detection module judges whether received piece of distribution data is authentic to detect whether protection control module is tampered with, and transmits judgment result indicating whether protection control module is tampered with. Management device 200d receives judgment results from d detection modules and manages protection control module with regard to tampering by using received judgment results. |
