Decision Workspace
dhkem vs p256 vs ed25519
Side-by-side comparison of Rust crates
50
dhkem
growingv0.1.0-rc.0
Pure Rust implementation of Key Encapsulation Mechanism (KEM) adapters for Elliptic Curve Diffie Hellman (ECDH) protocols
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
75
ed25519
stablev3.0.0
Edwards Digital Signature Algorithm (EdDSA) over Curve25519 (as specified in RFC 8032) support library providing signature type definitions and PKCS#8 private key decoding/encoding support
Core Metrics
| dhkem | p256 | ed25519 | |
|---|---|---|---|
| Health Score | 50 | 76 | 75 |
| Total Downloads | 3.0K | 120.4M | 153.6M |
| 30d Downloads | 0 | 12.0M | 20.9M |
| Dependents | 0 | 7.1K | 1.6K |
| Releases | 8 | 54 | 43 |
| Last Updated | 109d ago | 36d ago | 22d ago |
| Age | 2y 1m | 7y 7m | 9y 7m |
Health Breakdown
dhkem
Maintenance
12
Quality
12
Community
10
Popularity
4
Documentation
12
p256
Maintenance
17
Quality
16
Community
20
Popularity
8
Documentation
15
ed25519
Maintenance
17
Quality
15
Community
20
Popularity
8
Documentation
15
Technical Details
| dhkem | p256 | ed25519 | |
|---|---|---|---|
| Version | 0.1.0-rc.0 | 0.13.2 | 3.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | Apache-2.0 OR MIT | Apache-2.0 OR MIT | Apache-2.0 OR MIT |
| Dependencies | 14 | 13 | 6 |
| Crate Size | 19KB | 63KB | 19KB |
| Features | 9 | 17 | 4 |
| Yanked % | 12.5% | 3.7% | 34.9% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.85 | 1.65 | 1.85 |
| 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.
- •ed25519 has the most downloads (153.6M), suggesting wider adoption.
- •p256 is depended on by 7.1K crates — strongest ecosystem trust.
- •dhkem, p256 are pre-1.0 — API may change.