Re: [pkix] Straw-poll on OCSP responses for non-revoked certificates.

Simon Tardell <simon@tardell.se> Tue, 30 October 2012 16:02 UTC

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Date: Tue, 30 Oct 2012 17:02:00 +0100
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From: Simon Tardell <simon@tardell.se>
To: Stefan Santesson <stefan@aaa-sec.com>
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Subject: Re: [pkix] Straw-poll on OCSP responses for non-revoked certificates.
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On Tue, Oct 30, 2012 at 10:52 AM, Stefan Santesson <stefan@aaa-sec.com>wrote:

>
> Please reply with either:
>
> 1. Allow "revoked" response for a certificate that has not been "revoked"
> but where that OCSP responder for any other reason knows the certificate
> to be "bad".
>
> 2. Require that the OCSP responder MUST respond "good" in this situation.
>
> 3. Neither 1 or 2 (motivate).
>
>
1.

I see some people saying 3/ "unknown", because "revoked" would be lying.
Well, "unknown" be lying so much more, if you let it be an assertion that
the certificate has never been issued. Furthermore it would open security
holes by prompting some client implementations to fall back to CRLs or try
later.

/Simon