System and method for anti-replay processing of a data packet

Details System and method for anti-replay processing of a data packet System and method for anti-replay processing of a data packet

2007-06-26

2007-06-26

Moazzami, Nasser (Department: 2136)

Information security

Access control or authentication

Network

C726S014000

Reexamination Certificate

active

10191632

ABSTRACT:
A system for processing a data packet to determine if a replay condition exists for the data packet, wherein the data packet comprises a sequence number for comparison to a highest sequence number. The processing system includes a mask register to store a mask value, wherein the mask value provides an indication of prior receipt by the system of a plurality of data packets, and a shifter comprising an input coupled to receive the mask value from the mask register, wherein the shifter is operable to shift a binary value by a number of bit positions, the number determined by a difference between the sequence number and the highest sequence number.

REFERENCES:
patent: 6157955 (2000-12-01), Narad et al.
patent: 6295616 (2001-09-01), O'Connell et al.
patent: 6327625 (2001-12-01), Wang et al.
patent: 6389537 (2002-05-01), Davis et al.
patent: 6978384 (2005-12-01), Milliken
patent: 2001/0007559 (2001-07-01), Le Pennec et al.
patent: 2002/0001384 (2002-01-01), Buer et al.
patent: 2002/0023210 (2002-02-01), Tuomenoksa et al.
patent: 2002/0056001 (2002-05-01), Magee et al.
U.S. Non-Provisional Application titled Method and System for High-Speed Processing IPSEC Security Protocol Packets by Noehring et al., filed Jun. 13, 2001, U.S. Appl. No. 09/880,701.
“Security Architecture for the Internet Protocol”, by S. Kent, Network Working Group, Request for Comments 2401, Nov. 1998.

Affiliated with

Also associated with

Rating

System and method for anti-replay processing of a data packet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for anti-replay processing of a data packet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for anti-replay processing of a data packet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3859604