Fast Keyed Hash/pseudo-random Function Using SIMD Multiply And Permute

Alakuijala Jyrki, Cox Bill, Wassenberg Jan. Arxiv 2016

[Paper]    
ARXIV Independent

HighwayHash is a new pseudo-random function based on SIMD multiply and permute instructions for thorough and fast hashing. It is 5.2 times as fast as SipHash for 1 KiB inputs. An open-source implementation is available under a permissive license. We discuss design choices and provide statistical analysis, speed measurements and preliminary cryptanalysis. Assuming it withstands further analysis, strengthened variants may also substantially accelerate file checksums and stream ciphers.

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