Patents by Inventor Seong-Hyoen Yang

Seong-Hyoen Yang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for managing certificate revocation list by distributing it
    Patent number: 6950934
    Abstract: A method for distributively managing the CRL in a certifying system to certify the validity of a subscriber in an open communications network such as Internet, includes the steps of registering the certificate policy statement for the CRL by determining the distribution interval of the CRL; setting the structure of the certificate of the subscriber to issue the certificate according to the registered certificate policy statement; attesting the certificate by applying the distribution point mechanism according to the distribution interval to the CRL; and revoking the certificate by using the distribution points to revise the CRL displayed.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: September 27, 2005
    Assignee: Korea Telecom
    Inventors: Kyung-Hee Kang, Sun-Jung Kim, Seong-Hyoen Yang, Young-Sook Lim
  • Method for managing certificate revocation list by distributing it
    Publication number: 20020104000
    Abstract: A method for distributively managing the CRL in a certifying system to certify the validity of a subscriber in an open communications network such as Internet, includes the steps of registering the certificate policy statement for the CRL by determining the distribution interval of the CRL; setting the structure of the certificate of the subscriber to issue the certificate according to the registered certificate policy statement; attesting the certificate by applying the distribution point mechanism according to the distribution interval to the CRL; and revoking the certificate by using the distribution points to revise the CRL displayed.
    Type: Application
    Filed: December 14, 2000
    Publication date: August 1, 2002
    Inventors: Kyung-hee Kang, Sun-Jung Kim, Seong-Hyoen Yang, Young-Sook Lim