RFC 9420: The Messaging Layer Security (MLS) Protocol
In plain English — editorial summary, not part of the RFC
Messaging applications are increasingly making use of end-to-end security mechanisms to ensure that messages are only accessible to the communicating endpoints, and not to any servers involved in delivering messages. Establishing keys to provide such protections is challenging for group chat settings, in which more than two clients need to agree on a key but may not be online at the same time. In this document, we specify 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.
Document record
- Document ID
- RFC9420
- Published
- July 2023
- Authors
- R. Barnes; B. Beurdouche; R. Robert; J. Millican; E. Omara; K. Cohn-Gordon
- Status
- PROPOSED STANDARD
- Stream
- IETF
- Area
- sec
- Pages
- 132
- Also known as
- —
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
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