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Re: [Lake] FW: New Version Notification for draft-ietf-lake-traces-06.txt

John Mattsson <john.mattsson@ericsson.com> Thu, 31 August 2023 05:52 UTC

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From: John Mattsson <john.mattsson@ericsson.com>
To: Paul Wouters <paul.wouters=40aiven.io@dmarc.ietf.org>, "lake@ietf.org" <lake@ietf.org>
Thread-Topic: [Lake] FW: New Version Notification for draft-ietf-lake-traces-06.txt
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Date: Thu, 31 Aug 2023 05:52:08 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/lake/sLhE1x4v0o4nA7AKAZpRztqJ7to>
Subject: Re: [Lake] FW: New Version Notification for draft-ietf-lake-traces-06.txt
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Hi,

I made a PR
https://github.com/lake-wg/edhoc/pull/442/files

While writing the PR I realized that there are two more types of invalid ephemeral public keys. There are also several other types of invalid encodings that implementations should catch.

The PR has been checked by several implementors and we have already gotten strong proof that this is an important thing to have:
“these are very useful and I already caught several bugs in my implementation that need to be fixed”

Cheers,
John

From: Lake <lake-bounces@ietf.org> on behalf of Paul Wouters <paul.wouters=40aiven.io@dmarc.ietf.org>
Date: Tuesday, 29 August 2023 at 22:24
To: John Mattsson <john.mattsson=40ericsson.com@dmarc.ietf.org>
Cc: lake@ietf.org <lake@ietf.org>
Subject: Re: [Lake] FW: New Version Notification for draft-ietf-lake-traces-06.txt

On Tue, Aug 29, 2023 at 12:23 PM John Mattsson <john.mattsson=40ericsson.com@dmarc.ietf.org<mailto:40ericsson.com@dmarc.ietf.org>> wrote:
Hi,

Implementations not following requirements is unfortunatly more common than they should be [1]. To minimize the risk for non-compliant EDHOC implementations, should we add an invalid test vector with an invalid G_X? NIST (and EDHOC) mandates point validation. Around half of the G_X values are invalid so it is easy to find one.

I have no objection to this, but please do it sooner rather than later. Eg before the end of the IETF LC.

Paul

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