Re: [sidr] Questions about draft-huston-rpki-validation-01

"Sriram, Kotikalapudi" <kotikalapudi.sriram@nist.gov> Tue, 18 March 2014 12:22 UTC

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From: "Sriram, Kotikalapudi" <kotikalapudi.sriram@nist.gov>
To: Geoff Huston <gih@apnic.net>
Thread-Topic: Questions about draft-huston-rpki-validation-01
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Date: Tue, 18 Mar 2014 12:22:27 +0000
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Cc: George Michaelson <ggm@apnic.net>, sidr wg list <sidr@ietf.org>
Subject: Re: [sidr] Questions about draft-huston-rpki-validation-01
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Geoff,

>> Do you need somewhat different wording for the case of ROA validation?
>> (Is a ROA also technically a "certificate"?)
>> When you say "resource contained in the resource extension",
>> is that well defined for a ROA as well?

>RFC6482 need not be altered at all.
>Section 4 of RFC64582 states:
>      The IP address delegation extension [RFC3779 is present in the
>      end-entity (EE) certificate (contained within the ROA), and each
>      IP address prefix(es) in the ROA is contained within the set of IP
>      addresses specified by the EE certificate's IP address delegation
 >     extension.

>which still holds in this slightly altered certificated validation framework.

That is good. But what I meant was (in your I-D under discussion) does 
the alternate validation algorithm for a ROA need slightly different wording 
(as compared to that for certificates)? 
Such as:
A ROA is "valid" for a given IP address prefix specified in the ROA, 
if the given IP address prefix is subsumed in the resource extension field 
of the end-entity (EE) certificate (contained within the ROA),
and also subsumed in the resource extension field of all other certificates 
that are contained in a certification path, where the 
construction of this certification path is defined in Section 6 of RFC5280.

Sriram