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Re: Stephen Farrell's Discuss on draft-ietf-6man-stable-privacy-addresses-16: (with DISCUSS and COMMENT)

Simon Perreault <simon.perreault@viagenie.ca> Tue, 21 January 2014 16:47 UTC

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Date: Tue, 21 Jan 2014 11:47:18 -0500
From: Simon Perreault <simon.perreault@viagenie.ca>
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To: Fernando Gont <fgont@si6networks.com>, Stephen Farrell <stephen.farrell@cs.tcd.ie>, The IESG <iesg@ietf.org>
Subject: Re: Stephen Farrell's Discuss on draft-ietf-6man-stable-privacy-addresses-16: (with DISCUSS and COMMENT)
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Cc: 6man-chairs@tools.ietf.org, ipv6@ietf.org, Lloyd Wood <L.Wood@surrey.ac.uk>, draft-ietf-6man-stable-privacy-addresses@tools.ietf.org
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It said "DISCUSS" at the top, so I'll do just that...

Le 2014-01-21 11:20, Fernando Gont a écrit :
> On 01/21/2014 12:52 PM, Stephen Farrell wrote:
>> (1) Section 5: Why mention only MD5 and SHA1? Why not
>> HMAC-SHA256?
>
> They are just examples. I guess we could add HMAC-SHA256, too. I have no
> objections to that.

On all the platforms I know there would be no practical reason to pick 
MD5. Something better is always available and just as easy to use. I 
don't want new code to use MD5 "because it was given as an example in 
the RFC". Removing MD5 from the examples list would make me happy.

>> (2) Why might a sys admin want to display the
>> secret key?
>
> e.g., you want a replacement system to generate the same addresses.

Good reason IMHO.

Simon
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