Patent ID: 8769312
Filing Date: 2014-07-01
Classification: G06F,H04L

Abstract:
1. A tampering monitoring system comprising: a protection control device protecting a computer program; n detection devices monitoring the protection control device, wherein “n” is a positive integer; and a management device, wherein the management device includes: wherein the protection control device includes: wherein each of the d detection devices judges whether or not the piece of second distribution data in the received data pair is authentic by using the piece of verification data and the piece of second distribution data in the received data pair, judges that the protection control device is not tampered with when judging that the piece of second distribution data is authentic, judges that the protection control device is tampered with when judging that the piece of second distribution data is not authentic, and transmits a judgment result indicating whether or not the protection control device is tampered with, and wherein the management device receives judgment results from the d detection devices and manages the protection control device with regard to tampering by using the received judgment results.