Decision Workspace
fast_chacha vs c2-chacha vs aws-lc-rs
Side-by-side comparison of Rust crates
45
fast_chacha
experimentalv0.3.0
CPU-optimized ChaCha20 implementation with rust fallbacks
57
c2-chacha
growingv0.3.3
The ChaCha family of stream ciphers
81
aws-lc-rs
stablev1.16.2
aws-lc-rs is a cryptographic library using AWS-LC for its cryptographic operations. This library strives to be API-compatible with the popular Rust library named ring.
Core Metrics
| fast_chacha | c2-chacha | aws-lc-rs | |
|---|---|---|---|
| Health Score | 45 | 57 | 81 |
| Total Downloads | 2.1K | 13.1M | 92.9M |
| 30d Downloads | 10 | 373.3K | 14.3M |
| Dependents | 0 | 180 | 1.9K |
| Releases | 4 | 10 | 49 |
| Last Updated | 296d ago | 1615d ago | 8d ago |
| Age | 10m | 7y 1m | 2y 11m |
Health Breakdown
fast_chacha
Maintenance
11
Quality
11
Community
6
Popularity
4
Documentation
13
c2-chacha
Maintenance
7
Quality
18
Community
12
Popularity
8
Documentation
12
aws-lc-rs
Maintenance
21
Quality
20
Community
17
Popularity
8
Documentation
15
Technical Details
| fast_chacha | c2-chacha | aws-lc-rs | |
|---|---|---|---|
| Version | 0.3.0 | 0.3.3 | 1.16.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | Apache-2.0 | MIT/Apache-2.0 | ISC AND (Apache-2.0 OR ISC) |
| Dependencies | 3 | 3 | 9 |
| Crate Size | 81KB | 14KB | 225KB |
| Features | 2 | 5 | 12 |
| Yanked % | 25.0% | 0.0% | 4.1% |
| Edition | 2021 | 2018 | 2021 |
| MSRV | — | — | 1.71.0 |
| Owners | 1 | 1 | 4 (team) |
Links
Quick Verdict
- •aws-lc-rs has the highest health score (81/100) — a strong overall choice.
- •aws-lc-rs is depended on by 1.9K crates — strongest ecosystem trust.
- •⚠ c2-chacha has not been updated in over a year.
- •fast_chacha, c2-chacha are pre-1.0 — API may change.