Decision Workspace
c2-chacha vs fast_chacha vs chacha20poly1305
Side-by-side comparison of Rust crates
57
c2-chacha
growingv0.3.3
The ChaCha family of stream ciphers
45
fast_chacha
experimentalv0.3.0
CPU-optimized ChaCha20 implementation with rust fallbacks
72
chacha20poly1305
growingv0.10.1
Pure Rust implementation of the ChaCha20Poly1305 Authenticated Encryption with Additional Data Cipher (RFC 8439) with optional architecture-specific hardware acceleration. Also contains implementations of the XChaCha20Poly1305 extended nonce variant of ChaCha20Poly1305, and the reduced-round ChaCha8Poly1305 and ChaCha12Poly1305 lightweight variants.
Core Metrics
| c2-chacha | fast_chacha | chacha20poly1305 | |
|---|---|---|---|
| Health Score | 57 | 45 | 72 |
| Total Downloads | 13.1M | 2.1K | 49.7M |
| 30d Downloads | 373.3K | 10 | 4.0M |
| Dependents | 180 | 0 | 5.9K |
| Releases | 10 | 4 | 34 |
| Last Updated | 1615d ago | 296d ago | 53d ago |
| Age | 7y 1m | 10m | 9y 5m |
Health Breakdown
c2-chacha
Maintenance
7
Quality
18
Community
12
Popularity
8
Documentation
12
fast_chacha
Maintenance
11
Quality
11
Community
6
Popularity
4
Documentation
13
chacha20poly1305
Maintenance
15
Quality
16
Community
20
Popularity
8
Documentation
13
Technical Details
| c2-chacha | fast_chacha | chacha20poly1305 | |
|---|---|---|---|
| Version | 0.3.3 | 0.3.0 | 0.10.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT/Apache-2.0 | Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 3 | 3 | 6 |
| Crate Size | 14KB | 81KB | 68KB |
| Features | 5 | 2 | 8 |
| Yanked % | 0.0% | 25.0% | 2.9% |
| Edition | 2018 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •chacha20poly1305 leads with a health score of 72/100, but none of the options score above 80.
- •chacha20poly1305 is depended on by 5.9K crates — strongest ecosystem trust.
- •⚠ c2-chacha has not been updated in over a year.