| 摘要 |
PROBLEM TO BE SOLVED: To derange the temporal operation of a device so that it becomes more difficult to try a time analysis by driving an inhibiting stage by a random signal generator unit to extent the continuance of the presence of a locking signal by a specific period. SOLUTION: This processor has the random signal generator unit 8 which generates a random signal corresponding to a random function. This random signal is supplied to the inhibiting stage 10 through a control lead 9. The inhibiting stage 10 is inserted into a locking signal lead 7 and driven by the random signal generator unit 8 through the random signal and the continuance of the presence of the locking signal is extended exceeding the reference execution moment of a relative instruction to be executed. In this case, the locking signal is extended by a period selected according to the relative random signal, i.e., exceeding the reference execution moment. An instruction execution unit 1 becomes able to execute the relative instruction only after that. |
