Decision Workspace
cmpv2 vs aws-lc-rs vs p384
Side-by-side comparison of Rust crates
55
cmpv2
growingv0.2.0
Pure Rust implementation of the Certificate Management Protocol (CMP) as described in RFC 4210
81
aws-lc-rs
stablev1.17.1
aws-lc-rs is a cryptographic library using AWS-LC for its cryptographic operations. This library strives to be API-compatible with the popular Rust library named ring.
78
p384
growingv0.14.0
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
| cmpv2 | aws-lc-rs | p384 | |
|---|---|---|---|
| Health Score | 55 | 81 | 78 |
| Total Downloads | 470.2K | 159.8M | 66.3M |
| 30d Downloads | 131.3K | 13.9M | 4.4M |
| Dependents | 55 | 3.2K | 3.0K |
| Releases | 4 | 52 | 52 |
| Last Updated | 643d ago | 13d ago | 7d ago |
| Age | 3y 5m | 3y 3m | 7y 9m |
Health Breakdown
cmpv2
Maintenance
5
Quality
16
Community
15
Popularity
7
Documentation
12
aws-lc-rs
Maintenance
21
Quality
20
Community
17
Popularity
8
Documentation
15
p384
Maintenance
19
Quality
16
Community
20
Popularity
8
Documentation
15
Technical Details
| cmpv2 | aws-lc-rs | p384 | |
|---|---|---|---|
| Version | 0.2.0 | 1.17.1 | 0.14.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | Apache-2.0 OR MIT | ISC AND (Apache-2.0 OR ISC) | Apache-2.0 OR MIT |
| Dependencies | 6 | 9 | 14 |
| Crate Size | 25KB | 240KB | 75KB |
| Features | 3 | 13 | 17 |
| Yanked % | 0.0% | 3.9% | 3.9% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | 1.65 | 1.71.0 | 1.85 |
| Owners | 2 (team) | 4 (team) | 2 (team) |
Links
Quick Verdict
- •aws-lc-rs has the highest health score (81/100) — a strong overall choice.
- •aws-lc-rs is depended on by 3.2K crates — strongest ecosystem trust.
- •⚠ cmpv2 has not been updated in over a year.
- •cmpv2, p384 are pre-1.0 — API may change.