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1. (WO2001005087) CLASSIFICATION ENGINE IN A CRYPTOGRAPHY ACCELERATION CHIP

Pub. No.:    WO/2001/005087    International Application No.:    PCT/US2000/018617
Publication Date: Fri Jan 19 00:59:59 CET 2001 International Filing Date: Sat Jul 08 01:59:59 CEST 2000
IPC: G06F 9/38
G06F 21/00
Applicants: BROADCOM CORPORATION
KRISHNA, Suresh
OWEN, Christopher
LIN, Derrick
TARDO, Joe
LAW, Patrick
SMITH, Phillip
Inventors: KRISHNA, Suresh
OWEN, Christopher
LIN, Derrick
TARDO, Joe
LAW, Patrick
SMITH, Phillip
Title: CLASSIFICATION ENGINE IN A CRYPTOGRAPHY ACCELERATION CHIP
Abstract:
Provided is an architecture for a cryptography accelerator chip that allows significant performance improvements over previous prior art designs. In various embodiments, the architecture enables parallel processing of packets through a plurality of cryptography engines and includes a classification engine configured to efficiently process encryption/decryption of data packets. Cryptography acceleration chips in accordance may be incorporated on network line cards or service modules and used in applications as diverse as connecting a single computer to a WAN, to large corporate networks, to networks servicing wide geographic areas (e.g., cities). The present invention provides improved performance over the prior art designs, with much reduced local memory requirements, in some cases requiring no additional external memory. In some embodiments, the present invention enables sustained full duplex Gigabit rate security processing of IPSec protocol data packets.