tkaitchuck/aHash

Health v2 · maintenance only

Adoption not part of the score

1342 stars · 139 forks observed · 2026-08-28

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

aHash is a non-cryptographic hash function library for Rust that leverages AES hardware instructions (AES-NI) for extremely fast hashing. It is designed as a drop-in replacement hasher for in-memory HashMaps and HashSets, with keyed hashing to resist hash-flooding DoS attacks.

Use cases

• speed up Rust HashMap and HashSet lookups
• replace the default Rust hasher with a faster one
• protect hashmaps from hash-flooding denial-of-service attacks
• use a fast hasher in no_std embedded Rust projects
• build keyed hashmaps with unpredictable hash values

When to choose

• you need the fastest available hasher for in-memory hashmaps in Rust
• you want DOS-resistant keyed hashing for hashmap keys
• you need a no_std compatible hasher
• you want a drop-in replacement for the default Hasher trait

When to avoid

• you need cryptographically secure hashing (use SHA-3)
• you need hashes persisted to disk or sent over the network
• you need deterministic, stable hash output across versions or machines
• you need a MAC or any security-sensitive hashing

Facets

library · maturity stable

cryptography developer-tools developer-tools performance rust cross-platform hashing aes-ni hashmap non-cryptographic dos-resistant no-std algorithms

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