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Re: [kitten] [Curdle] Diffie-Hellman modulus sizing in Kerberos PKINIT

"Mark Baushke (ietf)" <mbaushke@gmail.com> Fri, 06 August 2021 20:50 UTC

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From: "Mark Baushke (ietf)" <mbaushke@gmail.com>
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Date: Fri, 6 Aug 2021 13:50:26 -0700
Cc: kitten@ietf.org, curdle@ietf.org
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To: Robbie Harwood <rharwood@redhat.com>
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Subject: Re: [kitten] [Curdle] Diffie-Hellman modulus sizing in Kerberos PKINIT
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Hi Robbie,

> On Aug 6, 2021, at 11:23 AM, Robbie Harwood <rharwood@redhat.com> wrote:
> 
> I have uploaded a -02 that hopefully provides the changes you were
> looking for.

I think you meant to type -01 as 

   https://datatracker.ietf.org/doc/draft-harwood-krb-pkinit-dh-upsize/01/ <https://datatracker.ietf.org/doc/draft-harwood-krb-pkinit-dh-upsize/01/>

aka

   https://www.ietf.org/archive/id/draft-harwood-krb-pkinit-dh-upsize-01.txt <https://www.ietf.org/archive/id/draft-harwood-krb-pkinit-dh-upsize-01.txt>

is the latest version of the draft.

> 
> I was mistaken earlier about what Heimdal supports: while they test
> their DH implementation with many other groups, the built-in support is
> limited to 1k and 2k groups.  So I've elected to make minimum size
> guidance rather than standardizing the intermediate groups, and limit
> the additions to 6k and 8k.

This seems reasonable to me.

I have reviewed draft-harwood-krb-pkinit-dh-upsize-01.txt <https://www.ietf.org/archive/id/draft-harwood-krb-pkinit-dh-upsize-01.txt> and it looks good to me.

> 
> Be well,
> --Robbie


        Be safe, stay healthy,
        -- Mark

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