RFC 9986 on Meticulous Keyed ISAAC for Bidirectional Forwarding Detection (BFD) Optimized Authentication
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Subject: RFC 9986 on Meticulous Keyed ISAAC for Bidirectional Forwarding Detection (BFD) Optimized Authentication
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A new Request for Comments is now available in online RFC libraries.
RFC 9986
Title: Meticulous Keyed ISAAC for Bidirectional Forwarding Detection (BFD) Optimized Authentication
Author: A. DeKok,
M. Jethanandani,
S. Agarwal,
A. Mishra,
J. Haas
Status: Experimental
Stream: IETF
Date: June 2026
Mailbox: aland@freeradius.org,
mjethanandani@gmail.com,
sagarwal12@gmail.com,
mishra.ashesh@outlook.com,
jhaas@pfrc.org
Pages: 29
I-D Tag: draft-ietf-bfd-secure-sequence-numbers-27
URL: https://www.rfc-editor.org/info/rfc9986
DOI: 10.17487/RFC9986
This document describes a Bidirectional Forwarding Detection (BFD) Optimized Authentication Mode known as Meticulous Keyed ISAAC Authentication. This mode can be used to authenticate some BFD packets with less CPU time cost than using MD5 or SHA-1 with the trade-off of decreased security. This mechanism cannot be used to signal state changes, but it can be used to maintain a session in the Up state.
This document is a product of the Bidirectional Forwarding Detection Working Group of the IETF.
EXPERIMENTAL: This memo defines an Experimental Protocol for the
Internet community. It does not specify an Internet standard of any
kind. Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
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