Decision Workspace
sfynx vs aws-lc-rs vs curve25519-dalek
Side-by-side comparison of Rust crates
38
sfynx
growingv0.8.7
General-purpose onion routing packet construction and processor based on Sphinx.
81
aws-lc-rs
stablev1.17.1
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.
75
curve25519-dalek
stablev5.0.0
A pure-Rust implementation of group operations on ristretto255 and Curve25519
Core Metrics
| sfynx | aws-lc-rs | curve25519-dalek | |
|---|---|---|---|
| Health Score | 38 | 81 | 75 |
| Total Downloads | 24.8K | 159.8M | 208.6M |
| 30d Downloads | 0 | 13.1M | 9.2M |
| Dependents | 0 | 3.2K | 8.4K |
| Releases | 21 | 52 | 104 |
| Last Updated | 1271d ago | 13d ago | 7d ago |
| Age | 4y 5m | 3y 3m | 9y 7m |
Health Breakdown
sfynx
Maintenance
6
Quality
16
Community
4
Popularity
5
Documentation
7
aws-lc-rs
Maintenance
21
Quality
20
Community
17
Popularity
8
Documentation
15
curve25519-dalek
Maintenance
19
Quality
13
Community
20
Popularity
8
Documentation
15
Technical Details
| sfynx | aws-lc-rs | curve25519-dalek | |
|---|---|---|---|
| Version | 0.8.7 | 1.17.1 | 5.0.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT | ISC AND (Apache-2.0 OR ISC) | BSD-3-Clause |
| Dependencies | 5 | 9 | 18 |
| Crate Size | 8KB | 240KB | 350KB |
| Features | 2 | 13 | 8 |
| Yanked % | 0.0% | 3.9% | 52.9% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | 1.71.0 | 1.85.0 |
| 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 (208.6M), suggesting wider adoption.
- •curve25519-dalek is depended on by 8.4K crates — strongest ecosystem trust.
- •⚠ sfynx has not been updated in over a year.
- •sfynx is pre-1.0 — API may change.