Accelerating Network Processing with Extensions to the User-Customizable ARCtangent Microprocessor

This paper describes how to significantly accelerate a vital aspect of networking processing "DES cryptography". The primary goal was to reduce the CPU's workload for IPSec (Internet Protocol Security) encryption and decryption. The result was an overall performance increase of 47x with single DES and 92x with triple DES (3DES). Another significant benefit was a 63% reduction in code size.

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