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Scalable FPGA Design and Performance Analysis of PHASH Hashing Function

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Executive Summary

This paper presents an FPGA design and performance analysis of a recently proposed parallelizable hash function - PHASH. The main feature of PHASH is that it is able to process multiple data blocks at once making it suitable for achieving ultra high-performance. It utilizes the W cipher, as described in the Whirlpool hashing function at its core. A Virtex- 4 FX60 FPGA was used in order to verify functionality of the implementation of the algorithm in hardware. To achieve high performance, state-of-the-art Virtex-5 LX330 FPGA was used as target platform. PHASH achieved a throughput over 15 Gbps using a single W cipher instance and 182 Gbps for 16 instances.

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