#simd #hash #portable #instructions #set #slice #highway-hash

nightly no-std autobahn-hash

An implementation of HighwayHash, a fast and strong SIMD hash function

1 unstable release

0.1.0 Jun 6, 2023

#1909 in Algorithms

MIT/Apache

265KB
316 lines

AutobahnHash

Crates.io Rust Documentation License

A pure Rust implementation of HighwayHash.

A few highlights:

  • No unsafe
  • Fuzzed against the reference implementation
  • Minimal crate with few required dependencies
  • Portable to any SIMD instruction set (and reasonably fast without SIMD)

This crate requires the portable_simd nightly feature.

Benchmarks

The following benchmarks were done on an Intel i7-9750H, to give an idea of the performance profile. These two benchmarks can help predict best- and worst-case performance.

Slices

The HighwayHash algorithm performs best on long slices of data: slice benchmark

Non-slice data

Worst-case performance can be predicted with non-slice data: struct Data(u8, u16, u32, u64); struct benchmark

License

AutobahnHash is distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.

Dependencies

~1.5MB
~39K SLoC