pq-crystals/kyber

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1235 stars · 293 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

The official reference implementation of the Kyber key encapsulation mechanism (ML-KEM), a NIST-standardized post-quantum KEM, written in C with an optimized AVX2 variant. The repository is no longer actively maintained and points users to mlkem-native for production use.

Use cases

• implement post-quantum key exchange in C
• benchmark ML-KEM key encapsulation performance
• study the reference implementation of Kyber
• test post-quantum KEM correctness with known-answer vectors
• evaluate AVX2-optimized lattice cryptography

When to choose

• you need the canonical reference implementation for research or verification
• you want to study how Kyber/ML-KEM works at the algorithm level
• you need a simple, readable C implementation for prototyping

When to avoid

• you need production-quality, maintained code - use mlkem-native instead
• you require formally verified or side-channel-hardened implementations - use mlkem-libjade
• you need long-term security support for a deployed system

Facets

library · maturity abandoned

cryptography security cpp post-quantum-cryptography key-encapsulation-mechanism ml-kem lattice-based reference-implementation avx2 linux macos

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