rfc9761v2.txt   rfc9761.txt 
Internet Engineering Task Force (IETF) T. Reddy.K Internet Engineering Task Force (IETF) T. Reddy.K
Request for Comments: 9761 Nokia Request for Comments: 9761 Nokia
Category: Standards Track D. Wing Category: Standards Track D. Wing
ISSN: 2070-1721 Citrix ISSN: 2070-1721 Citrix
B. Anderson B. Anderson
Cisco Cisco
March 2025 April 2025
Manufacturer Usage Description (MUD) for TLS and DTLS Profiles for Manufacturer Usage Description (MUD) for TLS and DTLS Profiles for
Internet of Things (IoT) Devices Internet of Things (IoT) Devices
Abstract Abstract
This memo extends the Manufacturer Usage Description (MUD) This memo extends the Manufacturer Usage Description (MUD)
specification to allow manufacturers to define TLS and DTLS profile specification to allow manufacturers to define TLS and DTLS profile
parameters. This allows a network security service to identify parameters. This allows a network security service to identify
unexpected (D)TLS usage, which can indicate the presence of unexpected (D)TLS usage, which can indicate the presence of
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should be defined: should be defined:
"enum": Replicates the label from the registry. "enum": Replicates the label from the registry.
"value": Contains the IANA-assigned value corresponding to the "value": Contains the IANA-assigned value corresponding to the
"tls-version" or "dtls-version". "tls-version" or "dtls-version".
"description": Replicates the description from the registry. "description": Replicates the description from the registry.
"reference": RFC YYYY: <Title of the RFC>, where YYYY is the RFC "reference": RFC YYYY: <Title of the RFC>, where YYYY is the RFC
that added the "tls-version" or "dtls-version" that added the "tls-version" or "dtls-version".
When a (D)TLS parameter is added to the "ACL (D)TLS Parameters" When a (D)TLS parameter is added to the "ACL (D)TLS Parameters"
registry, a new "type" statement must be added to the iana-tls- registry, a new "type" statement must be added to the iana-tls-
profile YANG module. The following "type" statement, and profile YANG module. The following "type" statement, and
substatements thereof, should be defined: substatements thereof, should be defined:
"derived type": Replicates the parameter name from the registry. "derived type": Replicates the parameter name from the registry.
"built-in type": Contains the built-in YANG type. "built-in type": Contains the built-in YANG type.
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