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Re: [dnsext] draft-jabley-dnsop-validator-bootstrap-00

Tony Finch <dot@dotat.at> Tue, 01 February 2011 20:37 UTC

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Date: Tue, 01 Feb 2011 20:40:19 +0000
From: Tony Finch <dot@dotat.at>
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Subject: Re: [dnsext] draft-jabley-dnsop-validator-bootstrap-00
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On Mon, 31 Jan 2011, John Bashinski wrote:

> > A validator must confirm that its local clock is sufficiently
> > accurate before trust anchors can be established, and before
> > processing of DNSSEC signatures can proceed.
>
> How?

There are two possibilities here: you can't reach a time server because of
some screwup, or someone is deliberately lying to you about the time.

The latter for DNSSEC is a denial of service attack, and the other network
comms in the bootstrap process is similarly vulnerable to DoS.

I agree it is a concern but I'm not sure it needs to cause angst.

Tony.
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