Patents by Inventor Jiansen Yang

Jiansen 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 preventing transmission control protocol synchronous package flood attack
    Patent number: 7363652
    Abstract: The invention relates to a method for preventing TCP SYN package flood attack, and belongs to the computer network security field. First, the firewall receives a client a TCP SYN connection request package, and responses, as an agent of the server, an acknowledgement of the TCP SYN connection request package with zero window size to the client. Then, the firewall records information about the TCP SYN connection request package and checks whether the connection request is legal. When the firewall has received a TCP SYN response package from the server, it returns an acknowledgement of said TCP SYN response package. At the same time, the firewall, as an agent of the server, sends an acknowledgement packet with nonzero window size to the client for initiating data transmission from the client. After that, data packets are transferred between the client and the server forwarded by the firewall as an agent.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: April 22, 2008
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yong Yang, Xindong Teng, Hongzhou Jiang, Minglei Li, Qiang Zhao, Fei Zheng, Jiansen Yang, Jingze Guo, Yan Qi
  • Method for preventing transmission control protocol synchronous package flood attack
    Publication number: 20040153669
    Abstract: The invention relates to a method for preventing TCP SYN package flood attack, and belongs to the computer network security field. First, the firewall receives a client a TCP SYN connection request package, and responses, as an agent of the server, an acknowledgement of the TCP SYN connection request package with zero window size to the client. Then, the firewall records information about the TCP SYN connection request package and checks whether the connection request is legal. When the firewall has received a TCP SYN response package from the server, it returns an acknowledgement of said TCP SYN response package. At the same time, the firewall, as an agent of the server, sends an acknowledgement packet with nonzero window size to the client for initiating data transmission from the client. After that, data packets are transferred between the client and the server forwarded by the firewall as an agent.
    Type: Application
    Filed: July 3, 2003
    Publication date: August 5, 2004
    Inventors: Yong Yang, Xindong Teng, Hongzhou Jiang, Minglei Li, Qiang Zhao, Fei Zheng, Jiansen Yang, Jingze Guo, Yan Qi