Patents by Inventor Shoudi Li

Shoudi Li 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).

  • Data encryption method and system and data decryption method
    Patent number: 8731191
    Abstract: An embodiment of the invention provides a data encryption method for an electrical device. The method comprises: generating an identification code corresponding to the electrical device; generating a temporary key according to the identification code; encrypting first data to generate a first secret key according to the temporary key and a first encryption mechanism; and encrypting the first secret key by a second encryption mechanism to generate an encrypted key.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: May 20, 2014
    Assignee: VIA Technologies, Inc.
    Inventors: Guanghui Wu, Shoudi Li, Xue Cui
  • DATA ENCRYPTION METHOD AND SYSTEM AND DATA DECRYPTION METHOD
    Publication number: 20120250859
    Abstract: An embodiment of the invention provides a data encryption method for an electrical device. The method comprises: generating an identification code corresponding to the electrical device; generating a temporary key according to the identification code; encrypting first data to generate a first secret key according to the temporary key and a first encryption mechanism; and encrypting the first secret key by a second encryption mechanism to generate an encrypted key.
    Type: Application
    Filed: November 23, 2011
    Publication date: October 4, 2012
    Applicant: VIA TECHNOLOGIES, INC.
    Inventors: Guanghui Wu, Shoudi Li, Xue Cui