Decision Workspace
fast-cdc vs aws-lc-rs vs curve25519-dalek
Side-by-side comparison of Rust crates
37
fast-cdc
growingv0.1.0
A safe place for all your data
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.
72
curve25519-dalek
stablev4.1.3
A pure-Rust implementation of group operations on ristretto255 and Curve25519
Core Metrics
| fast-cdc | aws-lc-rs | curve25519-dalek | |
|---|---|---|---|
| Health Score | 37 | 81 | 72 |
| Total Downloads | 2.0K | 92.9M | 144.4M |
| 30d Downloads | 24 | 14.3M | 14.4M |
| Dependents | 1 | 1.9K | 7.4K |
| Releases | 1 | 49 | 101 |
| Last Updated | 957d ago | 8d ago | 51d ago |
| Age | 2y 7m | 2y 11m | 9y 3m |
Health Breakdown
fast-cdc
Maintenance
1
Quality
15
Community
5
Popularity
4
Documentation
12
aws-lc-rs
Maintenance
21
Quality
20
Community
17
Popularity
8
Documentation
15
curve25519-dalek
Maintenance
16
Quality
13
Community
20
Popularity
8
Documentation
15
Technical Details
| fast-cdc | aws-lc-rs | curve25519-dalek | |
|---|---|---|---|
| Version | 0.1.0 | 1.16.2 | 4.1.3 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MPL-2.0 | ISC AND (Apache-2.0 OR ISC) | BSD-3-Clause |
| Dependencies | 3 | 9 | 18 |
| Crate Size | 61KB | 225KB | 306KB |
| Features | 0 | 12 | 6 |
| Yanked % | 0.0% | 4.1% | 54.5% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.66 | 1.71.0 | 1.60.0 |
| Owners | 1 | 4 (team) | 2 (team) |
Links
Quick Verdict
- •aws-lc-rs has the highest health score (81/100) — a strong overall choice.
- •curve25519-dalek has the most downloads (144.4M), suggesting wider adoption.
- •curve25519-dalek is depended on by 7.4K crates — strongest ecosystem trust.
- •⚠ fast-cdc has not been updated in over a year.
- •fast-cdc is pre-1.0 — API may change.