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Authority apparatus and a computer readable recording medium storing a program for executing a control method and a control method of the Certificate Authority Certificate Authority to the computer
Authority apparatus and a computer readable recording medium storing a program for executing a control method and a control method of the Certificate Authority Certificate Authority to the computer
PROBLEM TO BE SOLVED: To provide a certifying agency(CA) and a CA controlling method which can provide CA services such as issue and invalidate of certificates to users other than specific users only for the applications made by the specific users who are beforehand defined by the CA. SOLUTION: A CA receives an application which is made up of an applicant's identification name, a service receiver's identification name, a kind of service and a digital signature. Then a public key certificate of the applicant is retrieved from a certificate database using the applicant's application identification name as a key, the digital signature is verified, verification is made for the fact that the application is generated by the applicant represented by the applicant's identification name and a comparison is made to determine whether the applicant's identification name and the service receiver's identification name are agreed with each other or not. In the case of no agreement, it is judged whether a CA service specified by the kind of service should be executed or not while referring to a beforehand defined service permission condition. Moreover, in the case of agreement, or it is judged that the execution of the CA service is approved, the CA service specified by the kind of service is conducted for the service receiver.
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