Re: [Suit] [Teep] Default, mandatory-to-implement algorithm
Michael Richardson <mcr+ietf@sandelman.ca> Mon, 24 February 2020 18:30 UTC
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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Russ Housley <housley@vigilsec.com>, Hannes Tschofenig <Hannes.Tschofenig@arm.com>, teep <teep@ietf.org>, suit@ietf.org
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Date: Mon, 24 Feb 2020 13:30:55 -0500
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Subject: Re: [Suit] [Teep] Default, mandatory-to-implement algorithm
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{should this be CC'ed to SUIT?}
Russ Housley <housley@vigilsec.com> wrote:
> In the SUIT WG, I have been advocating HSS/LMS Hash-based signature as
> the MTI algorithm. This is a quantum resistant signature, and NIST has
> already started the process to make it a FIPS-approved algorithm
That's great news!
Once we have paid the code space and figured out the network bandwidth to
accomodate it, does it even make sense to have another MTI?
I am concerned that the MTI, if not used periodically, might rot.
Or it might be surprising when we have to use it, that the cost is too high.
I am not clear if we need HSS/LMS for the general TEEP use.
It seems that the thing that need a quantum resistant secure upgrade is for
the TEE Agent code, not the TAx. I'm not clear that the TEE Agent code
maintenance is even part of TEEP's mandate.
--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
-= IPv6 IoT consulting =-
- Re: [Suit] [Teep] Default, mandatory-to-implement… Michael Richardson