Decision Workspace
ristretto255-dh vs x25519-dalek vs curve25519-dalek
Side-by-side comparison of Rust crates
45
ristretto255-dh
growingv0.3.0
Diffie-Hellman key exchange using the Ristretto255 group.
76
x25519-dalek
stablev2.0.1
X25519 elliptic curve Diffie-Hellman key exchange in pure-Rust, using curve25519-dalek.
72
curve25519-dalek
stablev4.1.3
A pure-Rust implementation of group operations on ristretto255 and Curve25519
Core Metrics
| ristretto255-dh | x25519-dalek | curve25519-dalek | |
|---|---|---|---|
| Health Score | 45 | 76 | 72 |
| Total Downloads | 4.4K | 43.8M | 144.4M |
| 30d Downloads | 7 | 3.1M | 14.4M |
| Dependents | 0 | 5.2K | 7.4K |
| Releases | 3 | 32 | 101 |
| Last Updated | 2145d ago | 51d ago | 51d ago |
| Age | 5y 10m | 8y 6m | 9y 3m |
Health Breakdown
ristretto255-dh
Maintenance
4
Quality
15
Community
10
Popularity
4
Documentation
12
x25519-dalek
Maintenance
15
Quality
18
Community
20
Popularity
8
Documentation
15
curve25519-dalek
Maintenance
16
Quality
13
Community
20
Popularity
8
Documentation
15
Technical Details
| ristretto255-dh | x25519-dalek | curve25519-dalek | |
|---|---|---|---|
| Version | 0.3.0 | 2.0.1 | 4.1.3 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | BSD-3-Clause | BSD-3-Clause |
| Dependencies | 7 | 7 | 18 |
| Crate Size | 4KB | 88KB | 306KB |
| Features | 1 | 8 | 6 |
| Yanked % | 0.0% | 15.6% | 54.5% |
| Edition | 2018 | 2021 | 2021 |
| MSRV | — | 1.60 | 1.60.0 |
| Owners | 2 (team) | 2 (team) | 2 (team) |
Links
Quick Verdict
- •x25519-dalek leads with a health score of 76/100, but none of the options score above 80.
- •curve25519-dalek has the most downloads (144.4M), suggesting wider adoption.
- •curve25519-dalek is depended on by 7.4K crates — strongest ecosystem trust.
- •⚠ ristretto255-dh has not been updated in over a year.
- •ristretto255-dh is pre-1.0 — API may change.