Patents by Inventor Christina Fu

Christina Fu 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).

  • Publication number: 20080022088
    Abstract: An embodiment pertains generally to a method of storing keys. The method includes receiving a request for generating a subject private key at a token processing system and generating a subject key pair, where the subject key pair includes a subject public and the subject private key. The method also includes archiving the subject private key within the token processing system.
    Type: Application
    Filed: June 6, 2006
    Publication date: January 24, 2008
    Inventors: Christina Fu, Steven William Parkinson, Nang Kon Kwan
  • Publication number: 20080022121
    Abstract: An embodiment pertains generally to a method of generating credentials for a token. The method includes detecting the token and the server determining that the token is to be enrolled and generating a subject key pair within the server, where the subject key pair includes a subject public key and the subject private key. The method also includes encrypting the subject private key with a key transport session key to arrive at a wrapped private key and forwarding the wrapped private key to the token.
    Type: Application
    Filed: June 6, 2006
    Publication date: January 24, 2008
    Inventors: Christina Fu, Steven William Parkinson, Nang Kon Kwan
  • Publication number: 20080019526
    Abstract: An embodiment pertains generally to a method of delivering keys in a server. The method includes generating a subject key pair, where the subject key pair includes a subject public key and a subject private key. The method also includes retrieving a storage key and encrypting the subject private key with the storage key as a wrapped storage private key. The method further includes storing the wrapped storage private key.
    Type: Application
    Filed: June 6, 2006
    Publication date: January 24, 2008
    Inventors: Christina Fu, Steven William Parkinson, Nang Kon Kwan
  • Publication number: 20070288745
    Abstract: Embodiments of the present invention provide a profile framework for handling enrollment requests. In particular, when a token processing system receives an enrollment request, it selects an applicable profile based on information in the request. The profile may indicate a variety of parameters for fulfilling the enrollment request, such as the locations of the applicable certificate authority, token key service, and the like. The profile may also indicate items, such as the number of keys to generate on a token, a token label, and connection information to securely communicate with other components and the client making the enrollment request.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 13, 2007
    Inventors: Nang Kon Kwan, Chandrasekar Kannan, Shuk Yee Ho, Steven William Parkinson, Christina Fu
  • Publication number: 20070280483
    Abstract: Methods, systems and computer readable mediums are provided for recovering keys. A key transport session key is generated, and a key encryption key is derived based on a server master key and an identification associated with a token. The key transport session key is encrypted with the key encryption key as a first wrapped key transport session key. An encrypted storage session key and an encrypted private key are retrieved from an archive. The encrypted storage session key is decrypted with a server storage key as a storage session key. The encrypted private key is decrypted with the storage session key. The decrypted private key is encrypted with the key transport session key as a wrapped private key. The wrapped private key and the first wrapped key transport session key are forwarded.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 6, 2007
    Inventors: Christina Fu, Nang Kon Kwan, Steven William Parkinson, Robert Relyea
  • Publication number: 20030037234
    Abstract: A method and apparatus for centralizing a certificate revocation list (CRL). Specifically, the present invention describes a method and system for centralizing a CRL in a certificate authority. The certificate authority is comprised of a master server coupled to a plurality of clone servers that form a cluster of servers. Each of the clone servers in the cluster has the capability to provide certificate authority services. The present invention centralizes the CRL at a database accessed by the lightweight directory access protocol that supports a Secure Sockets Layer. A CRL merger service located at the master server maintains the CRL. The master server also receives revocation information coming from the clone servers indicating a certificate has been revoked. Upon receipt of such revocation certificate record, the corresponding certificate is added to the CRL. In this way a centralized CRL is maintained for the entire certificate authority cluster of servers.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 20, 2003
    Inventors: Christina Fu, Ajay Sondhi