@misc{rfc9431,
    series =    {Request for Comments},
    number =    9431,
    howpublished =  {RFC 9431},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC9431},
    url =       {https://www.rfc-editor.org/info/rfc9431},
    author =    {Cigdem Sengul and Anthony Kirby},
    title =     {{Message Queuing Telemetry Transport (MQTT) and Transport Layer Security (TLS) Profile of Authentication and Authorization for Constrained Environments (ACE) Framework}},
    pagetotal = 33,
    year =      2023,
    month =     jul,
    abstract =  {This document specifies a profile for the Authentication and Authorization for Constrained Environments (ACE) framework to enable authorization in a publish-subscribe messaging system based on Message Queuing Telemetry Transport (MQTT). Proof-of-Possession keys, bound to OAuth 2.0 access tokens, are used to authenticate and authorize MQTT Clients. The protocol relies on TLS for confidentiality and MQTT server (Broker) authentication.},
}