Decision Workspace
openmls vs gbp-protocol vs gbp-mls
Side-by-side comparison of Rust crates
58
openmls
growingv0.8.1
A Rust implementation of the Messaging Layer Security (MLS) protocol, as defined in RFC 9420.
60
gbp-protocol
experimentalv1.5.5
Group Broadcast Protocol base layer: GbpFrame (CBOR), control plane and error object. The IP-like substrate that GTP, GAP and GSP build on top of.
60
gbp-mls
experimentalv1.5.5
MLS (RFC 9420) integration for the Group Protocol Stack: openmls 0.8 plus a ChaCha20-Poly1305 AEAD layer driven by labelled exporters.
Core Metrics
| openmls | gbp-protocol | gbp-mls | |
|---|---|---|---|
| Health Score | 58 | 60 | 60 |
| Total Downloads | 192.2K | 971 | 941 |
| 30d Downloads | 74.3K | 0 | 0 |
| Dependents | 298 | 150 | 151 |
| Releases | 25 | 26 | 26 |
| Last Updated | 97d ago | 5d ago | 5d ago |
| Age | 5y 6m | 16d | 16d |
Health Breakdown
openmls
Maintenance
13
Quality
11
Community
15
Popularity
6
Documentation
13
gbp-protocol
Maintenance
17
Quality
15
Community
12
Popularity
4
Documentation
12
gbp-mls
Maintenance
17
Quality
15
Community
12
Popularity
4
Documentation
12
Technical Details
| openmls | gbp-protocol | gbp-mls | |
|---|---|---|---|
| Version | 0.8.1 | 1.5.5 | 1.5.5 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT | Apache-2.0 | Apache-2.0 |
| Dependencies | 35 | 5 | 6 |
| Crate Size | 497KB | 8KB | 19KB |
| Features | 10 | 0 | 0 |
| Yanked % | 8.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | — | 1.92 | 1.92 |
| Owners | 4 (team) | 1 | 1 |
Links
Quick Verdict
- •gbp-protocol leads with a health score of 60/100, but none of the options score above 80.
- •openmls has the most downloads (192.2K), suggesting wider adoption.
- •openmls is depended on by 298 crates — strongest ecosystem trust.
- •openmls is pre-1.0 — API may change.