Re: [kitten] Kerberos preauth negotiation techniques

Nathaniel McCallum <npmccallum@redhat.com> Mon, 23 February 2015 21:59 UTC

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From: Nathaniel McCallum <npmccallum@redhat.com>
To: Nico Williams <nico@cryptonector.com>
Date: Mon, 23 Feb 2015 16:59:46 -0500
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Subject: Re: [kitten] Kerberos preauth negotiation techniques
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On Mon, 2015-02-23 at 15:41 -0600, Nico Williams wrote:
> On Mon, Feb 23, 2015 at 3:24 PM, Greg Hudson <ghudson@mit.edu> wrote:
> > On 02/23/2015 03:13 PM, Nathaniel McCallum wrote:
> > > We also discussed making group negotiation have a note in the 
> > > RFC about being careful regarding the number of groups exposed. I
> > > suspect sensible defaults will be:
> > > * P-256
> > > * P-384
> > > * P-521
> > > * Curve25519
> > 
> > I would prefer an even more limited offering, but this decision 
> > can wait until later.
> 
> 
> I think two for the 128-bit level and one or two (preferably one) 
> each for the 192- and 256-bit levels.

I think this is an implementation detail that will change over time. :)