Patents by Inventor Quentin Liu

Quentin Liu 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).

  • Patent number: 8375204
    Abstract: A method for forming a digital certificate includes receiving contact information associated with the digital certificate. The contact information includes at least a name, a mailing address, and an email address. The method also includes receiving billing information associated with the digital certificate and receiving a Certificate Signing Request (CSR) for the digital certificate. The method further includes receiving a first name for use in forming the digital certificate and receiving a second name for use in forming the digital certificate. Moreover, the method includes receiving an indication of a vendor of web server software, receiving an indication of a service period for the digital certificate, and forming the digital certificate. The first name is stored in a Subject field of the digital certificate and the second name is stored in the SubjectAltName extension of the digital certificate.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 12, 2013
    Assignee: Symantec Corporation
    Inventors: Quentin Liu, Marc Williams, Richard F. Andrews
  • Patent number: 8364954
    Abstract: A method of provisioning a first digital certificate and a second digital certificate based on an existing digital certificate includes receiving information related to the existing digital certificate. The existing digital certificate includes a first name listed in a Subject field and a second name listed in a SubjectAltName extension. The method also includes receiving an indication from a user to split the existing digital certificate and extracting the first name from the Subject field and the second name from the SubjectAltName extension of the existing digital certificate. The method further includes extracting the public key from the existing digital certificate, provisioning the first digital certificate with the first name listed in a Subject field of the first digital certificate and the public key, and provisioning the second digital certificate with the second name listed in a Subject field of the second digital certificate and the public key.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: January 29, 2013
    Assignee: Symantec Corporation
    Inventors: Quentin Liu, Marc Williams, Richard F. Andrews
  • Publication number: 20110153479
    Abstract: A method for managing payment of digital certificates includes receiving a request to issue a digital certificate to a subscriber, capturing and saving payment information of the subscriber, performing a first authentication and verification of the subscriber at a first time, and performing at least one additional authentication and verification of the subscriber at least once every authentication period. A long-lived certificate is issued to the subscriber provided the subscriber is authenticated and verified. The long-lived certificate is valid for an expiration period. However, the long-lived certificate is revoked if (1) the additional authentications and verification produce invalid results, or (2) if payment is not received during a payment period. The authentication period is shorter than the expiration period and there are at least a first and a second authentication period within the expiration period. The expiration period is longer than the authentication period.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Applicant: VeriSign, Inc.
    Inventors: Quentin Liu, Kathleen Elizabeth Barnes, Richard F. Andrews
  • Publication number: 20110154027
    Abstract: A method of renewing a plurality of digital certificates includes receiving, at a first time, a request from a user to renew a first digital certificate and determining an expiration date for the first digital certificate. The method also includes receiving, at a second time, a request from the user to renew a second digital certificate and determining an expiration date for the second digital certificate. The expiration date for the second certificate is later than the expiration date for the first certificate. The method further includes determining a new expiration date occurring after the first time and the second time and renewing the first digital certificate. An expiration date for the renewed first digital certificate is equal to the new expiration date. Moreover, the method includes renewing the second digital certificate. An expiration date for the renewed second digital certificate is equal to the new expiration date.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Applicant: VeriSign, Inc.
    Inventors: Quentin Liu, Kathleen Barnes, Richard F. Andrews
  • Publication number: 20110145567
    Abstract: A method for forming a digital certificate includes receiving contact information associated with the digital certificate. The contact information includes at least a name, a mailing address, and an email address. The method also includes receiving billing information associated with the digital certificate and receiving a Certificate Signing Request (CSR) for the digital certificate. The method further includes receiving a first name for use in forming the digital certificate and receiving a second name for use in forming the digital certificate. Moreover, the method includes receiving an indication of a vendor of web server software, receiving an indication of a service period for the digital certificate, and forming the digital certificate. The first name is stored in a Subject field of the digital certificate and the second name is stored in the SubjectAltName extension of the digital certificate.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 16, 2011
    Applicant: VeriSign, Inc.
    Inventors: Quentin Liu, Marc Williams, Richard F. Andrews
  • Publication number: 20110145569
    Abstract: A method of provisioning a first digital certificate and a second digital certificate based on an existing digital certificate includes receiving information related to the existing digital certificate. The existing digital certificate includes a first name listed in a Subject field and a second name listed in a SubjectAltName extension. The method also includes receiving an indication from a user to split the existing digital certificate and extracting the first name from the Subject field and the second name from the SubjectAltName extension of the existing digital certificate. The method further includes extracting the public key from the existing digital certificate, provisioning the first digital certificate with the first name listed in a Subject field of the first digital certificate and the public key, and provisioning the second digital certificate with the second name listed in a Subject field of the second digital certificate and the public key.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 16, 2011
    Applicant: VeriSign, Inc.
    Inventors: Quentin Liu, Marc Williams, Richard F. Andrews