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RE: OCSP response pre-production




I agree with the statements below.

Mike, we should also add some statements of correct client behavior.

My thoughts:
    (a) If a client makes a request with a nonce, it MUST reject
		 a response that doesn't include the same nonce.
    (b) If a client makes a request without a nonce, it MUST ignore the
		nonce extension in the response (it doesn't matter if there
		is a nonce in the reply or not, because the server might be
		returning a cached response produced in response to a
previous
		request that was made with a nonce - although that wouldn't
be
		the behavior of a regular http proxy).



Ambarish

> -----Original Message-----
> From: owner-ietf-pkix@xxxxxxxxxxxx 
> [mailto:owner-ietf-pkix@xxxxxxxxxxxx] On Behalf Of Michael Myers
> Sent: Tuesday, September 30, 2003 8:08 AM
> To: ietf-pkix@xxxxxxx
> Subject: RE: OCSP response pre-production
> 
> 
> 
> All,
> 
> I was talking to some folks offlist on this subject yesterday 
> and thought I might ask if it's possible we could all get 
> behind the following simple fix.
> 
> 
> SYNTAX:     Expand v1 OCSPResponseStatus syntax to
>             include (7) noncesNotAccepted.
> 
> 
> SEMANTICS:  Responders SHOULD respond back with the
>             requestor's nonce but if can't then SHALL
>             respond with an error message of the value
>             noncesNotAccepted.
> 
>             Requestors SHALL reject signed responses
>             that fail to incorporate a supplied nonce.
> 
>             Upon receipt of noncesNotRequired, requestors
>             MAY retry the request without using a nonce.
>             Requestors are STRONGLY ADVISED that doing
>             so MAY subject them to additional risk.
> 
> Thus, essentially, requestors can set "nonce always" but if 
> they want to they can have that overridden on a per-request basis.
> 
> Opinions?
> 
> Mike
> 
>