Decision Workspace
p192 vs p256 vs p384
Side-by-side comparison of Rust crates
67
p192
growingv0.13.0
Pure Rust implementation of the NIST P-192 (a.k.a. secp192r1) elliptic curve as defined in SP 800-186
76
p256
growingv0.13.2
Pure Rust implementation of the NIST P-256 (a.k.a. secp256r1, prime256v1) elliptic curve as defined in SP 800-186, with support for ECDH, ECDSA signing/verification, and general purpose curve arithmetic
74
p384
growingv0.13.1
Pure Rust implementation of the NIST P-384 (a.k.a. secp384r1) elliptic curve as defined in SP 800-186 with support for ECDH, ECDSA signing/verification, and general purpose curve arithmetic support.
Core Metrics
| p192 | p256 | p384 | |
|---|---|---|---|
| Health Score | 67 | 76 | 74 |
| Total Downloads | 484.6K | 120.4M | 54.7M |
| 30d Downloads | 78.3K | 12.0M | 5.9M |
| Dependents | 42 | 7.1K | 2.4K |
| Releases | 12 | 54 | 45 |
| Last Updated | 38d ago | 36d ago | 36d ago |
| Age | 3y 2m | 7y 7m | 7y 7m |
Health Breakdown
p192
Maintenance
16
Quality
14
Community
15
Popularity
7
Documentation
15
p256
Maintenance
17
Quality
16
Community
20
Popularity
8
Documentation
15
p384
Maintenance
16
Quality
15
Community
20
Popularity
8
Documentation
15
Technical Details
| p192 | p256 | p384 | |
|---|---|---|---|
| Version | 0.13.0 | 0.13.2 | 0.13.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | Apache-2.0 OR MIT | Apache-2.0 OR MIT | Apache-2.0 OR MIT |
| Dependencies | 9 | 13 | 12 |
| Crate Size | 72KB | 63KB | 193KB |
| Features | 10 | 17 | 17 |
| Yanked % | 8.3% | 3.7% | 4.4% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.65 | 1.65 | 1.65 |
| Owners | 2 (team) | 2 (team) | 2 (team) |
Links
Quick Verdict
- •p256 leads with a health score of 76/100, but none of the options score above 80.
- •p256 is depended on by 7.1K crates — strongest ecosystem trust.