RFC 9761: Manufacturer Usage Description (MUD) for TLS and DTLS Profiles for Internet of Things (IoT) Devices

This memo extends the Manufacturer Usage Description (MUD) specification to allow manufacturers to define TLS and DTLS profile parameters. This allows a network security service to identify unexpected (D)TLS usage, which can indicate the presence of unauthorized software, malware, or security policy-violating traffic on an endpoint.