Re: New Version Notification for draft-ietf-bfd-optimizing-authentication-02.txt

Mahesh Jethanandani <mjethanandani@gmail.com> Thu, 23 March 2017 01:57 UTC

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Subject: Re: New Version Notification for draft-ietf-bfd-optimizing-authentication-02.txt
From: Mahesh Jethanandani <mjethanandani@gmail.com>
In-Reply-To: <20170322193508.GT7253@pfrc.org>
Date: Wed, 22 Mar 2017 18:57:41 -0700
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To: Jeffrey Haas <jhaas@pfrc.org>
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> On Mar 22, 2017, at 12:35 PM, Jeffrey Haas <jhaas@pfrc.org> wrote:
> 
> This update is scheduled to be discussed at the upcoming session at IETF-98
> in Chicago.  
> 
> The likely discussion is whether the new draft from Sonal should be
> specifically tied to the advancement of the optimization draft.  Our prior
> discussion with Alan had suggested some concern about the sequence number
> issues when we're using NULL authentication.
> 
> I suspect some good discussion will happen on this topic at the upcoming
> session and encourage the members of the Working Group to read both drafts
> in preparation.

Yes, it would be helpful to read both the drafts in preparation for the discussion.

Optimized authentication is not a substitute for sequence number obfuscation draft, and vice-versa. They offer different levels of cost/benefit, where

Draft                                             Cost        Benefit
====                                            ====       ======
sequence number obfuscation     Low        Medium (does not authenticate the complete packet)
optimized authentication              Medium  High       (authenticates entire “state change” packets)
full authentication                         High       High       (authenticates all packets)

> 
> -- Jeff
> 
>> On Jan 3, 2017, at 4:37 PM, internet-drafts@ietf.org wrote:
>> 
>> 
>> A new version of I-D, draft-ietf-bfd-optimizing-authentication-02.txt
>> has been successfully submitted by Mahesh Jethanandani and posted to the
>> IETF repository.
>> 
>> Name:		draft-ietf-bfd-optimizing-authentication
>> Revision:	02
>> Title:		Optimizing BFD Authentication
>> Document date:	2017-01-05
>> Group:		bfd
>> Pages:		8
>> URL:            https://www.ietf.org/internet-drafts/draft-ietf-bfd-optimizing-authentication-02.txt
>> Status:         https://datatracker.ietf.org/doc/draft-ietf-bfd-optimizing-authentication/
>> Htmlized:       https://tools.ietf.org/html/draft-ietf-bfd-optimizing-authentication-02
>> Diff:           https://www.ietf.org/rfcdiff?url2=draft-ietf-bfd-optimizing-authentication-02
>> 
>> Abstract:
>>  This document describes an optimization to BFD Authentication as
>>  described in Section 6.7 of BFD [RFC5880].
>> 
>> 
>> 
>> 
>> 
>> Please note that it may take a couple of minutes from the time of submission
>> until the htmlized version and diff are available at tools.ietf.org.
>> 
>> The IETF Secretariat
>