PikasekoHash-256: experimental AVX-512 hash function hits ~24 GB/s on one Zen 5 core
ssh4net · x · 2026-10-27
Cryptographer Jyrki Alakuijala open-sourced PikasekoHash-256, an experimental 256-bit hash function built from AES rounds over a wide 8192-bit state (sixteen 512-bit registers), inspired by FFT butterfly structures.
- Targets AVX-512 + VAES CPUs (AMD Zen 4/Zen 5, Intel Ice Lake+): 24 GB/s single-threaded on one Zen 5 core, 36 ns for short messages
- Supports a keyed mode with a 512-bit key, plus a portable C implementation
- MIT-licensed on GitHub with spec, analysis docs and benchmarks
The author stresses it's a draft design that still needs community cryptographic review.
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