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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: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
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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