Patents by Inventor Rephael Tzakikario

Rephael Tzakikario 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).

  • DNS anti-spoofing using UDP
    Patent number: 7620733
    Abstract: A method for authenticating communication traffic includes receiving a first Domain Name System (DNS) request, sent using a connectionless protocol over a network from a source address, to provide network information regarding a domain name. Responsively to the first DNS request, a client at the source address is solicited to send a second DNS request using the connectionless protocol. An authenticity of the first DNS request is assessed based on the second DNS request.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: November 17, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Rephael Tzakikario, Dan Touitou, Guy Pazi