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

Yoav Nir <ynir@checkpoint.com> Tue, 30 October 2012 11:42 UTC

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From: Yoav Nir <ynir@checkpoint.com>
To: Yngve Nysaeter Pettersen <yngve@opera.com>
Date: Tue, 30 Oct 2012 13:42:37 +0200
Thread-Topic: [pkix] Straw-poll on OCSP responses for non-revoked certificates.
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Cc: "pkix@ietf.org" <pkix@ietf.org>
Subject: Re: [pkix] Straw-poll on OCSP responses for non-revoked certificates.
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Also #1. 

It is wrong to assume that a compromised CA will issue any CA with any serial number. The compromises of Diginotar and InstantSSL.it did not allow the attacker to choose a serial number, only to sign a particular request.

Yoav

On Oct 30, 2012, at 1:22 PM, Yngve Nysaeter Pettersen wrote:

> Hi,
> 
> I prefer Option 1: Return revoked when a certificate is not known to have  
> been issued.
> 
> 
> On Tue, 30 Oct 2012 10:52:47 +0100, Stefan Santesson <stefan@aaa-sec.com>  
> wrote:
> 
>> Before we loose everyone engaged in this, I would like to make a
>> straw-poll:
> 
> <snip>
> 
> 
>> 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).
> 
> 
> 
> -- 
> Sincerely,
> Yngve N. Pettersen
> ********************************************************************
> Senior Developer		     Email: yngve@opera.com
> Opera Software ASA                   http://www.opera.com/
> Phone:  +47 96 90 41 51              Fax:    +47 23 69 24 01
> ********************************************************************
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