METHOD FOR SUPPORTING CONFIRMATION OF ELECTRONIC CERTIFICATE VALIDITY AND INFORMATION PROCESSOR USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To simplify the confirmation processing of the validity of an electronic certificate such that the secured transaction is not affected. SOLUTION: A plurality of cache use conditions including at least one certificate and the valid period and the priority of confirmation result data are previously decided. A certificate validity confirmation substitution server 10 stores a confirmation result in a cache 100 whether the validity of the certificate designated by the confirmation request of validity from the client 11 is confirmed by the information processors 32 and 33 of a certification station 30. When validity confirmation result data of the certificate designated by the confirmation request of validity from the client 11 is stored in the cache 100, the certificate is designated by one cache use condition, and stored confirmation result data is used as a confirmation result by setting such that stored validity confirmation result data is within the valid period designated by the cache use condition as a condition.