The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2009
Filed:
Apr. 30, 2002
Victoria Lynn Irwin, Cedar Park, TX (US);
Victoria Lynn Irwin, Cedar Park, TX (US);
TippingPoint Technologies, Inc., Austin, TX (US);
Abstract
To assist a destination/intermediary node in authenticating a communications packet as originating from a certain source node, the source node hides a cryptographically generated first special value based on the packet in a header portion of the communications packet. Upon receipt of the communications packet, the destination/intermediary node cyptographically generates a second special value also based on the packet for comparison to the first special value extracted from hiding in the header portion. If the first and second special values match, the destination/intermediary node has authenticated the communications packet as originating from the source node. The foregoing may be implemented in a number of situations, but has special use in connection with the detection of packet communications vulnerability assessment probe traffic by an intrusion detection system.