Automated Certificate Management Environment Delay-Tolerant Networking Node ID Validation Extension
RFC 9891, “Automated Certificate Management Environment Delay-Tolerant Networking Node ID Validation Extension”, is an Experimental document published in November 2025 by B. Sipos. The canonical text is published by the RFC Editor.
Abstract
This document specifies an extension to the Automated Certificate Management Environment (ACME) protocol that allows an ACME server to validate the Delay-Tolerant Networking (DTN) Node ID for an ACME client. A DTN Node ID is an identifier used in the Bundle Protocol (BP) to name a "singleton endpoint": an endpoint that is registered on a single BP Node. The DTN Node ID is encoded both as a certificate Subject Alternative Name (SAN) identity of type otherName with an Other Name form of BundleEID and as an ACME Identifier type "bundleEID".
What “Experimental” means
Describes a specification that is part of a research or development effort, published so the community can gain experience with it.
The canonical text of RFC 9891 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9890 An Update to YANG Module Names Registration
- RFC 9889 A Realization of Network Slices for 5G Networks Using Current IP/MPLS Technologies
- RFC 9887 Terminal Access Controller Access-Control System Plus over TLS 1.3
- RFC 9886 DRIP Entity Tags in the Domain Name System
- RFC 9885 Multi-Part TLVs in IS-IS
- RFC 9884 Label Switched Path Ping for Segment Routing Path Segment Identifier with MPLS Data Plane
- RFC 9898 Neighbor Discovery Considerations in IPv6 Deployments
- RFC 9883 An Attribute for Statement of Possession of a Private Key