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Re: [Dtls-iot] FW: New Version Notification for draft-keoh-dice-multicast-security-08.txt

Carsten Bormann <cabo@tzi.org> Tue, 08 July 2014 15:08 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Tue, 08 Jul 2014 17:08:44 +0200
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To: Michael StJohns <msj@nthpermutation.com>
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Cc: "Kumar, Sandeep" <sandeep.kumar@philips.com>, "dtls-iot@ietf.org" <dtls-iot@ietf.org>
Subject: Re: [Dtls-iot] FW: New Version Notification for draft-keoh-dice-multicast-security-08.txt
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On 08 Jul 2014, at 16:50, Michael StJohns <msj@nthpermutation.com> wrote:

> 1) You can't do integrity protection without source authentication.  

That depends on your attack model.

Given that much of today’s IoT “security" is depending on a single WiFi key for a whole installation, application-based group keying is still significant progress for those cases where the attack model doesn’t rule out group keying.

Grüße, Carsten

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