This document describes best current security practice for OAuth 2.0. It updates and extends the threat model and security advice given in RFCs 6749, 6750, and 6819 to incorporate practical experiences gathered since OAuth 2.0 was published and covers new threats relevant due to the broader application of OAuth 2.0. Further, it deprecates some modes of operation that are deemed less secure or even…
Use Case for an Extended Reality Application on Edge Computing Infrastructure
This document explores the issues involved in the use of edge computing resources to operationalize a media use case that involves an Extended Reality (XR) application. In particular, this document discusses an XR application that can run on devices having different form factors (such as different physical sizes and shapes) and needs edge computing resources to mitigate the effect of problems such…
This document defines an IMAP extension to let clients know that the messages in this IMAP server are also available via the JSON Meta Application Protocol (JMAP), and how. It is intended for clients that want to migrate gradually to JMAP or use JMAP extensions within an IMAP client.
This document describes an approach for Resource Public Key Infrastructure (RPKI) Relying Parties to detect a particular form of RPKI Repository Delta Protocol (RRDP) session desynchronization and how to recover. This document updates RFC 8182.
Routing in Fat Trees (RIFT) Applicability and Operational Considerations
This document discusses the properties, applicability, and operational considerations of Routing in Fat Trees (RIFT) in different network scenarios with the intention of providing a rough guide on how RIFT can be deployed to simplify routing operations in Clos topologies and their variations.
This memo registers and documents the 'haptics' top-level media type, under which subtypes for representation formats for haptics may be registered. This document also serves as a registration for a set of subtypes, which are representative of some existing subtypes already in use.
Guidelines for the Definition of New Top-Level Media Types
This document defines best practices for defining new top-level media types. It also introduces a registry for top-level media types, and contains a short history of top-level media types. It updates RFC 6838.
Benchmarking Methodology for Stateful NATxy Gateways
RFC 2544 defines a benchmarking methodology for network interconnect devices. RFC 5180 addresses IPv6 specificities, and it also provides a technology update but excludes IPv6 transition technologies. RFC 8219 addresses IPv6 transition technologies, including stateful NAT64. However, none of them discuss how to apply pseudorandom port numbers from RFC 4814 to any stateful NATxy (such as NAT44, NAT…
This document defines a specialized, dynamic routing protocol for Clos, fat tree, and variants thereof. These topologies were initially used within crossbar interconnects and consequently router and switch backplanes, but their characteristics make them ideal for constructing IP fabrics as well. The protocol specified by this document is optimized towards the minimization of control plane state to…
A Profile for Resource Public Key Infrastructure (RPKI) Trust Anchor Keys (TAKs)
A Trust Anchor Locator (TAL) is used by Relying Parties (RPs) in the Resource Public Key Infrastructure (RPKI) to locate and validate a Trust Anchor (TA) Certification Authority (CA) certificate used in RPKI validation. This document defines an RPKI signed object for a Trust Anchor Key (TAK). A TAK object can be used by a TA to signal to RPs the location(s) of the accompanying CA certificate for t…
Use of the RSA-KEM Algorithm in the Cryptographic Message Syntax (CMS)
The RSA Key Encapsulation Mechanism (RSA-KEM) algorithm is a one-pass (store-and-forward) cryptographic mechanism for an originator to securely send keying material to a recipient using the recipient's RSA public key. The RSA-KEM algorithm is specified in Clause 11.5 of ISO/IEC: 18033-2:2006. This document specifies the conventions for using the RSA-KEM algorithm as a standalone KEM algorithm and …
Use Cases for a PCE as a Central Controller (PCECC)
The PCE is a core component of a Software-Defined Networking (SDN) system. It can be used to compute optimal paths for network traffic and update existing paths to reflect changes in the network or traffic demands. The PCE was developed to derive Traffic Engineering (TE) paths in MPLS networks, which are supplied to the headend of the paths using the Path Computation Element Communication Protocol…
Use of the SHA3 One-Way Hash Functions in the Cryptographic Message Syntax (CMS)
This document describes the conventions for using the one-way hash functions in the SHA3 family with the Cryptographic Message Syntax (CMS). The SHA3 family can be used as a message digest algorithm, as part of a signature algorithm, as part of a message authentication code, or as part of a Key Derivation Function (KDF).
This document defines the SendHoldTimer, along with the SendHoldTimer_Expires event, for the Border Gateway Protocol (BGP) Finite State Machine (FSM). Implementation of the SendHoldTimer helps overcome situations where a BGP connection is not terminated after the local system detects that the remote system is not processing BGP messages. This document specifies that the local system should close t…
Listener Subscription for IPv6 Neighbor Discovery Multicast and Anycast Addresses
This document updates the 6LoWPAN extensions to IPv6 Neighbor Discovery (specified in RFCs 4861 and 8505) to enable a listener to subscribe to an IPv6 anycast or multicast address. This document also updates the Routing Protocol for Low-Power and Lossy Networks (RPL) (specified in RFCs 6550 and 6553) to add a new Non-Storing multicast mode and new support for anycast addresses in Storing and Non-S…
A YANG Data Model for Challenge-Response-Based Remote Attestation (CHARRA) Procedures Using Trusted Platform Modules (TPMs)
This document defines the YANG Remote Procedure Calls (RPCs) and configuration nodes that are required to retrieve attestation evidence about integrity measurements from a device, following the operational context defined in RFC 9683 "TPM-based Network Device Remote Integrity Verification". Complementary measurement logs originating from one or more Roots of Trust for Measurement (RTMs) are also p…
Remote Integrity Verification of Network Devices Containing Trusted Platform Modules
This document describes a workflow for remote attestation of the integrity of firmware and software installed on network devices that contain Trusted Platform Modules (TPMs), as defined by the Trusted Computing Group (TCG), or equivalent hardware implementations that include the protected capabilities, as provided by TPMs.
Updates to the Concise Data Definition Language (CDDL) Grammar
The Concise Data Definition Language (CDDL), as defined in RFCs 8610 and 9165, provides an easy and unambiguous way to express structures for protocol messages and data formats that are represented in Concise Binary Object Representation (CBOR) or JSON. This document updates RFC 8610 by addressing related errata reports and making other small fixes for the ABNF grammar defined for CDDL.
Current Link State PDU flooding rates are much slower than what modern networks can support. The use of IS-IS at larger scale requires faster flooding rates to achieve desired convergence goals. This document discusses the need for faster flooding, the issues around faster flooding, and some example approaches to achieve faster flooding. It also defines protocol extensions relevant to faster flood…
This document provides education and guidance for IETF participants on compliance with antitrust laws and how to reduce antitrust risks in connection with IETF activities.
CBOR Object Signing and Encryption (COSE) Key Thumbprint
This specification defines a method for computing a hash value over a CBOR Object Signing and Encryption (COSE) Key. It specifies which fields within the COSE Key structure are included in the cryptographic hash computation, the process for creating a canonical representation of these fields, and how to hash the resulting byte sequence. The resulting hash value, referred to as a "thumbprint", can …
Forward Secrecy Extension to the Improved Extensible Authentication Protocol Method for Authentication and Key Agreement (EAP-AKA' FS)
This document updates RFC 9048, "Improved Extensible Authentication Protocol Method for 3GPP Mobile Network Authentication and Key Agreement (EAP-AKA')", and its predecessor RFC 5448 with an optional extension providing ephemeral key exchange. The extension EAP-AKA' Forward Secrecy (EAP-AKA' FS), when negotiated, provides forward secrecy for the session keys generated as a part of the authenticati…
Content Delivery Network Interconnection (CDNI) Metadata for Delegated Credentials
The delivery of content over HTTPS involving multiple Content Delivery Networks (CDNs) raises credential management issues. This document defines metadata in the Content Delivery Network Interconnection (CDNI) Control and Metadata interface to set up HTTPS delegation using delegated credentials from an upstream CDN (uCDN) to a downstream CDN (dCDN).
LEX: A Uniform Resource Name (URN) Namespace for Sources of Law
This document describes LEX, a Uniform Resource Name (URN) namespace identifier that identifies, names, assigns, and manages persistent resources in the legal domain. This specification allows adoption of a common convention by multiple jurisdictions to facilitate ease of reference and access to resources in the legal domain. This specification is an Independent Submission to the RFC Series. It is…
The Delay-Tolerant Networking (DTN) architecture describes a type of challenged network in which communications may be significantly affected by long signal propagation delays, frequent link disruptions, or both. The unique characteristics of this environment require a unique approach to network management that supports asynchronous transport, autonomous local control, and a small footprint (in bo…
Same-Origin Policy for the RPKI Repository Delta Protocol (RRDP)
This document describes a Same-Origin Policy (SOP) requirement for Resource Public Key Infrastructure (RPKI) Repository Delta Protocol (RRDP) servers and clients. Application of a SOP in RRDP client/server communication isolates resources such as Delta and Snapshot files from different Repository Servers, reducing possible attack vectors. This document updates RFC 8182.
This document specifies procedures for processing IPv6 Hop-by-Hop options in IPv6 routers and hosts. It modifies the procedures specified in the IPv6 Protocol Specification (RFC 8200) to make processing of the IPv6 Hop-by-Hop Options header practical with the goal of making IPv6 Hop-by-Hop options useful to deploy and use at IPv6 routers and hosts. This document updates RFC 8200.
Transferring Opportunistic Wireless Encryption to the IEEE 802.11 Working Group
RFC 8110 describes Opportunistic Wireless Encryption (OWE), a mode that allows unauthenticated clients to connect to a network using encrypted traffic. This document transfers the ongoing maintenance and further development of the protocol to the IEEE 802.11 Working Group. This document updates RFC 8110 by noting that future work on the protocol described therein will occur in the IEEE 802.11 Work…
Sieve Email Filtering: Extension for Processing Calendar Attachments
This document describes the "processcalendar" extension to the Sieve email filtering language. The "processcalendar" extension gives Sieve the ability to process machine-readable calendar data that is encapsulated in an email message using Multipurpose Internet Mail Extensions (MIME).