Decision Workspace
ristretto255-dh vs x25519-dalek vs curve25519-dalek
Side-by-side comparison of Rust crates
44
ristretto255-dh
growingv0.3.0
Diffie-Hellman key exchange using the Ristretto255 group.
78
x25519-dalek
stablev3.0.0
X25519 elliptic curve Diffie-Hellman key exchange in pure-Rust, using curve25519-dalek.
75
curve25519-dalek
stablev5.0.0
A pure-Rust implementation of group operations on ristretto255 and Curve25519
Core Metrics
| ristretto255-dh | x25519-dalek | curve25519-dalek | |
|---|---|---|---|
| Health Score | 44 | 78 | 75 |
| Total Downloads | 4.4K | 59.0M | 208.6M |
| 30d Downloads | 0 | 3.0M | 9.8M |
| Dependents | 0 | 8.1K | 8.4K |
| Releases | 3 | 35 | 104 |
| Last Updated | 2253d ago | 7d ago | 7d ago |
| Age | 6y 2m | 8y 10m | 9y 7m |
Health Breakdown
ristretto255-dh
Maintenance
3
Quality
15
Community
10
Popularity
4
Documentation
12
x25519-dalek
Maintenance
18
Quality
17
Community
20
Popularity
8
Documentation
15
curve25519-dalek
Maintenance
19
Quality
13
Community
20
Popularity
8
Documentation
15
Technical Details
| ristretto255-dh | x25519-dalek | curve25519-dalek | |
|---|---|---|---|
| Version | 0.3.0 | 3.0.0 | 5.0.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | BSD-3-Clause | BSD-3-Clause |
| Dependencies | 7 | 8 | 18 |
| Crate Size | 4KB | 96KB | 350KB |
| Features | 1 | 7 | 8 |
| Yanked % | 0.0% | 14.3% | 52.9% |
| Edition | 2018 | 2024 | 2024 |
| MSRV | — | 1.85 | 1.85.0 |
| Owners | 2 (team) | 2 (team) | 2 (team) |
Links
Quick Verdict
- •x25519-dalek leads with a health score of 78/100, but none of the options score above 80.
- •curve25519-dalek has the most downloads (208.6M), suggesting wider adoption.
- •curve25519-dalek is depended on by 8.4K crates — strongest ecosystem trust.
- •⚠ ristretto255-dh has not been updated in over a year.
- •ristretto255-dh is pre-1.0 — API may change.