Server Device with Revocation List Acquiring Function

摘要: When a preset activation time is reached, or when digital MFP activated manually, determination carried out as to whether not certificate revocation list necessary be acquired. Then, the acquires and stores necessary. The determines of signature confirmation execution included in acquired determine an e-document which has been confirmed invalid. invalid, creates text data indicating that corresponding TSA are prints created data. After deleting contents list, determined time, shut down.