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:
Apr. 05, 2011
Filed:
Nov. 14, 2003
Means of mitigating denial of service attacks on ip fragmentation in high performance ipsec gateways
Craig Partridge, East Lansing, MI (US);
Walter Clark Milliken, Dover, NH (US);
David Patrick Mankins, Cambridge, MA (US);
Craig Partridge, East Lansing, MI (US);
Walter Clark Milliken, Dover, NH (US);
David Patrick Mankins, Cambridge, MA (US);
Verizon Corporate Services Group Inc., Basking Ridge, NJ (US);
Raytheon BBN Technologies Corp., Cambridge, MA (US);
Abstract
Embodiments of the invention reduce the probability of success of a DOS attack on a node receiving packets by decreasing the probability of random collisions of packets sent by a malicious user with those sent by honest users. The probability of random collisions may be reduced in one class of embodiments of the invention by supplementing the identification field of the IP header of each transmitted packet with at least one bit from another field of the header. The probability of random collisions may be reduced in another class of embodiments of the invention by ensuring that packets sent from a transmitting IPsec node to a receiving IPsec node are not fragmented.