Patents by Inventor Huan-Chung Lin

Huan-Chung Lin 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).

  • Access control system and method based on hierarchical key, and authentication key exchange method thereof
    Patent number: 8239928
    Abstract: Disclosed relates to an access control system and method based on hierarchical keys. The system comprises an access control server (ACS), a home gateway, and a plurality of sensor devices disposed on a home network. The ACS sets up user's access limits of authority and authorization verifier, and saves the related data of user's password and the user's access limits of authority. The gateway records the authority limits' level and the authority limits' key which are constructed based on a hierarchical key structure. When a user logs in the ACS to request access, an one-time communication key between the user and the home gateway is established by exchanging the ticket and the token that are issued by the ACS. This allows the user to access the information of the sensor devices.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: August 7, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Hsiung Huang, Lun-Chia Kuo, Wen-Guey Tzeng, Huan-Chung Lin, Chya-Hung Tsai
  • Access Control System And Method Based On Hierarchical Key, And Authentication Key Exchange Method Thereof
    Publication number: 20100122091
    Abstract: Disclosed relates to an access control system and method based on hierarchical keys. The system comprises an access control server (ACS), a home gateway, and a plurality of sensor devices disposed on a home network. The ACS sets up user's access limits of authority and authorization verifier, and saves the related data of user's password and the user's access limits of authority. The gateway records the authority limits' level and the authority limits' key which are constructed based on a hierarchical key structure. When a user logs in the ACS to request access, an one-time communication key between the user and the home gateway is established by exchanging the ticket and the token that are issued by the ACS. This allows the user to access the information of the sensor devices.
    Type: Application
    Filed: January 9, 2009
    Publication date: May 13, 2010
    Inventors: Yi-Hsiung Huang, Lun-Chia Kuo, Wen-Guey Tzeng, Huan-Chung Lin, Chya-Hung Tsai