Messaging Layer Security (mls)
| WG | Name | Messaging Layer Security | |
|---|---|---|---|
| Acronym | mls | ||
| Area | Security Area (sec) | ||
| State | Active | ||
| Charter | charter-ietf-mls-02 Approved | ||
| Status update | Show Changed 2018-11-07 | ||
| Document dependencies | |||
| Additional resources |
GitHub organization Issue tracker Wiki Zulip Stream |
||
| Personnel | Chairs | Nick Sullivan, Sean Turner | |
| Area Director | Paul Wouters | ||
| Mailing list | Address | mls@ietf.org | |
| To subscribe | https://www.ietf.org/mailman/listinfo/mls | ||
| Archive | https://mailarchive.ietf.org/arch/browse/mls/ | ||
| Chat | Room address | https://zulip.ietf.org/#narrow/stream/mls |
Charter for Working Group
The Messaging Layer Security (MLS) protocol, RFC 9420, specifies a key
establishment protocol that provides efficient asynchronous group key
establishment with forward secrecy (FS) and post-compromise security (PCS)
for groups in size ranging from two to thousands.
The MLS WG will maintain the protocol and will work on the
following MLS protocol extensions:
- Support for use of MLS in protocols developed by the MIMI working group
- Support for new credential types
- Support for common operational patterns in messaging applications
- Support for quantum resistance
- Framework for safe extensibility
- Detection of lost application messages
- Support for sending messages to individual members of a group
Many of the extensions to support these features will be included in
draft-ietf-mls-extensions, but some of the extensions will be published in
separate specifications.
Milestones
| Date | Milestone | Associated documents |
|---|---|---|
| Dec 2026 | Post Quantum security for MLS | |
| Dec 2025 | Submit Additional Credentials I-D to IESG as Proposed Standard |
draft-barnes-mls-addl-creds
|
| Dec 2024 | Submit MLS extensions I-D to IESG as Proposed Standard |
draft-ietf-mls-extensions
|