%% You should probably cite draft-ietf-mls-architecture-13 instead of this revision.
@techreport{ietf-mls-architecture-04,
    number =    {draft-ietf-mls-architecture-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-mls-architecture/04/},
    author =    {Emad Omara and Benjamin Beurdouche and Eric Rescorla and Srinivas Inguva and Albert Kwon and Alan Duric},
    title =     {{The Messaging Layer Security (MLS) Architecture}},
    pagetotal = 18,
    year =      2020,
    month =     jan,
    day =       26,
    abstract =  {This document describes the reference architecture, functional and security requirements for the Messaging Layer Security (MLS) protocol. MLS provides a security layer for group messaging applications with from two to a large number of clients. It is meant to protect against eavesdropping, tampering, and message forgery.},
}