Re: [Lake] Ways forward on MTI cipher suite text

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 25 January 2022 16:01 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Date: Tue, 25 Jan 2022 11:01:00 -0500
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Subject: Re: [Lake] Ways forward on MTI cipher suite text
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Stephen Farrell <stephen.farrell@cs.tcd.ie> wrote:
    > On 24/01/2022 23:53, Michael Richardson wrote:
    >> (PS: I will have to check out of virtual interim early tomorrow)

    > Because of the above, I've a question...

    >> I don't agree with supporting (0*and* 1) or (2*and* 3) on a device.

    > I'm not clear if that means you can't *live with* the above, can you
    > clarify?

    > My reason to ask is that there are a plethora of reasonable positions
    > on this topic, so I'm not sure we'll land on one that everyone
    > likes. For me, that means maybe we're better to try find an imperfect
    > answer with which people can live, rather than try aim to make everyone
    > very happy.

I can probably live with almost anything, because RFCs are voluntary :-)

I think that if 0/2 is good enough, then don't do/support 1/3.
What's the point?
There is no security benefit, only coding errors and testing overhead.

If 0/2 is not good enough, then use 1/3.

--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide