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:
May. 07, 2013
Filed:
Dec. 29, 2010
Vojislav Vukovic, Campbell, CA (US);
Brian Vanderwarn, Maple Grove, MN (US);
Nikola Radovanovic, Los Altos, CA (US);
Ephrem Wu, San Mateo, CA (US);
Vojislav Vukovic, Campbell, CA (US);
Brian Vanderwarn, Maple Grove, MN (US);
Nikola Radovanovic, Los Altos, CA (US);
Ephrem Wu, San Mateo, CA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
Described embodiments provide a network processor that includes a security protocol processor to prevent replay attacks on the network processor. A memory stores security associations for anti-replay operations. A pre-fetch module retrieves an anti-replay window corresponding to a data stream of the network processor. The anti-replay window has a range of sequence numbers. When the network processor receives a data packet, the security hardware accelerator determines a value of the received sequence number with respect to minimum and maximum values of a sequence number range of the anti-replay window. Depending on the value, the data packet is either received or accepted. The anti-replay window might be updated to reflect the receipt of the most recent data packet.