chacha20
v0.10.1 GrowingThe ChaCha20 stream cipher (RFC 8439) implemented in pure Rust using traits from the RustCrypto `cipher` crate, with optional architecture-specific hardware acceleration (AVX2, SSE2). Additionally provides the ChaCha8, ChaCha12, XChaCha20, XChaCha12 and XChaCha8 stream ciphers, and also optional rand_core-compatible RNGs based on those ciphers.
Quick Verdict
- ✓Actively maintained (updated 19d ago)
- !Pre-1.0: API may have breaking changes
- ✓Massive adoption (1.8K crates depend on it)
- ✓Team maintained (2 owners)
- ✓Permissive license (MIT OR Apache-2.0)
Security
Deep Insights
23.7M downloads in the last 30 days (791.5K/day), up 18% from the previous period.
1.8K crates depend on chacha20. Strong ecosystem adoption means battle-tested code and long-term stability.
The primary maintainer publishes 216 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
Despite being 9+ years old, chacha20 hasn't reached 1.0 yet. Expect potential API changes between versions.
At 37KB, chacha20 is lightweight. Small crate size correlates with focused, well-scoped functionality.
14% of releases have been yanked. Check version history before pinning.
Notable dependents include rand, crypto-bigint, ed25519-dalek, blake3, chacha20poly1305. When high-quality crates choose chacha20, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Most downloaded crates that depend on chacha20
Version Adoption
Release Timeline
Feature Flags
default =["cipher"]
