| 摘要 |
PROBLEM TO BE SOLVED: To improve security by preventing leakage of authentication information, which is required for mutual authentication between one control means and another control means, to the utmost.SOLUTION: Authentication in a challenge-response system is performed between a main control part and a CU communication control part. Not only the main control part authenticates the CU communication control part in the challenge-response system, but also the CU communication control part authenticates the main control part in the challenge-response system. |
