GxHash is a blazingly fast and robust non-cryptographic hashing algorithm.

Features

Blazingly Fast 🚀

Up to this date, GxHash is the fastest non-cryptographic hashing algorithm of its class, for all input sizes. This performance is possible mostly thanks to heavy usage of SIMD intrinsics, high ILP construction and a small bytecode (easily inlined and cached). See the benchmarks.

Highly Robust 🗿

GxHash uses several rounds of hardware-accelerated AES block cipher for efficient bit mixing. Thanks to this, GxHash passes all SMHasher tests, which is the de facto quality benchmark for non-cryptographic hash functions, gathering most of the existing algorithms. GxHash has low collisions, uniform distribution and high avalanche properties.

Portability

Architecture Compatibility

GxHash is compatible with:

• X86 processors with AES-NI & SSE2 intrinsics
• ARM processors with AES & NEON intrinsics Warning: Other platforms are currently not supported (there is no fallback). GxHash will not build on these platforms.

Hashes Stability

All generated hashes for a given version of GxHash are stable, meaning that for a given input the output hash will be the same across all supported platforms.

Benchmarks

This library is a C# port of gxhash. Despite the language difference, performance is really close to the Rust version of the algorithm for a given version of the algorithm. You can run the benchmarks in GxHash.Benchmarks to see for yourself.