Decision Workspace
primefield vs p256 vs p384
Side-by-side comparison of Rust crates
63
primefield
growingv0.14.0-rc.8
Generic implementation of prime fields built on `crypto-bigint`, along with macros for writing field element newtypes including ones with formally verified arithmetic using `fiat-crypto`
77
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
75
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
| primefield | p256 | p384 | |
|---|---|---|---|
| Health Score | 63 | 77 | 75 |
| Total Downloads | 493.1K | 98.9M | 44.6M |
| 30d Downloads | 115.5K | 9.9M | 4.2M |
| Dependents | 146 | 5.6K | 2.0K |
| Releases | 17 | 53 | 44 |
| Last Updated | 17d ago | 17d ago | 17d ago |
| Age | 2y 3m | 7y 5m | 7y 5m |
Health Breakdown
primefield
Maintenance
18
Quality
11
Community
12
Popularity
7
Documentation
15
p256
Maintenance
18
Quality
16
Community
20
Popularity
8
Documentation
15
p384
Maintenance
17
Quality
15
Community
20
Popularity
8
Documentation
15
Technical Details
| primefield | p256 | p384 | |
|---|---|---|---|
| Version | 0.14.0-rc.8 | 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 | 6 | 13 | 12 |
| Crate Size | 21KB | 63KB | 193KB |
| Features | 0 | 17 | 17 |
| Yanked % | 5.9% | 3.8% | 4.5% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | 1.85 | 1.65 | 1.65 |
| Owners | 1 | 2 (team) | 2 (team) |
Links
Quick Verdict
- •p256 leads with a health score of 77/100, but none of the options score above 80.
- •p256 is depended on by 5.6K crates — strongest ecosystem trust.