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CERTIFICATE VALIDATION METHOD AND CERTIFICATE VALIDATION SERVER AND STORAGE MEDIUM

  • US 20110004763A1
  • Filed: 06/29/2010
  • Published: 01/06/2011
  • Est. Priority Date: 07/01/2009
  • Status: Active Grant
First Claim
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1. A certificate validation method for use with a certificate validation server connected to a network together with a plurality of terminal devices and a plurality of certificate authority entities, for causing the certificate validation server to receive a certificate validation request from a given terminal device via the network, for building a certification path of from a first certificate authority up to a second certificate authority, for performing validation of the certification path, and for sending a validation result via said network to the terminal device which is a source of the certificate validation request, wherein said certificate validation server performs a processing operation comprising the steps of:

  • detecting a key update of a given certificate authority or a compromise of the given certificate authority;

    acquiring a certificate of a relevant certificate authority, first certificate status information and second certificate status information;

    storing the acquired information in a storage unit or updating the information being presently stored in the storage unit based on the acquired information; and

    performing building of the certification path and validation of the certification path by use of the information of said storage unit.

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