ELECTRONIC CERTIFICATE ISSUING METHOD AND ELECTRONIC CERTIFICATE ISSUING SYSTEM

摘要

PROBLEM TO BE SOLVED: To entrust a third person with a procedure and to prevent double use and unauthorized utilization by the third person in the case of issuing various kinds of certificates or the like such as the ones issued by an administrative organ as electronic data. SOLUTION: By entering a utilization purpose to the certificate and inhibiting the alteration of the certificate, it can not be utilized for something other than the entered purpose.