Decision Workspace
fips203 vs fips203-ffi vs ml-kem
Side-by-side comparison of Rust crates
53
fips203
growingv0.4.3
FIPS 203: Module-Lattice-Based Key-Encapsulation Mechanism
45
fips203-ffi
growingv0.4.3
C shared library exposing FIPS 203: Module-Lattice-Based Key-Encapsulation Mechanism
66
ml-kem
growingv0.2.3
Pure Rust implementation of the Module-Lattice-Based Key-Encapsulation Mechanism Standard (formerly known as Kyber) as described in FIPS 203
Core Metrics
| fips203 | fips203-ffi | ml-kem | |
|---|---|---|---|
| Health Score | 53 | 45 | 66 |
| Total Downloads | 79.0K | 3.1K | 850.3K |
| 30d Downloads | 16.1K | 5 | 161.4K |
| Dependents | 40 | 0 | 211 |
| Releases | 13 | 3 | 19 |
| Last Updated | 395d ago | 395d ago | 1d ago |
| Age | 2y 2m | 1y 10m | 2y 7m |
Health Breakdown
fips203
Maintenance
8
Quality
14
Community
10
Popularity
6
Documentation
15
fips203-ffi
Maintenance
6
Quality
15
Community
5
Popularity
4
Documentation
15
ml-kem
Maintenance
19
Quality
11
Community
17
Popularity
7
Documentation
12
Technical Details
| fips203 | fips203-ffi | ml-kem | |
|---|---|---|---|
| Version | 0.4.3 | 0.4.3 | 0.2.3 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 12 | 2 | 13 |
| Crate Size | 766KB | 12KB | 35KB |
| Features | 5 | 0 | 4 |
| Yanked % | 0.0% | 0.0% | 15.8% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.70 | 1.70 | 1.74 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •ml-kem leads with a health score of 66/100, but none of the options score above 80.
- •ml-kem is depended on by 211 crates — strongest ecosystem trust.
- •⚠ fips203, fips203-ffi have not been updated in over a year.