Thanks Steve, this is very helpful!

However, I was also referring to the consistency model as viewed by the RPs.  I 
think this wasn't clear in my email, sorry.  Clearly the structure served by 
CAs (which you outlined below) is a critical first step.  To that point, I 
think I mentioned some of this in a follow-on email to this thread.  However, I 
think the consistency model of the RPs (i.e. will they all have the same 
view/time ordered view/partial view/etc. of these certs) is an important 
consideration too, right?

Eric

On Aug 25, 2012, at 5:19 AM, Stephen Kent wrote:

> Eric,
> 
> The short answer to your question is that each CA is supposed to ensure that 
> the certs it issues match its allocation database. This applies to both cert 
> issuance and cert revocation. A quick look at the RPKI RFCs provides a few 
> examples of statements about the RPKI consistency model.
> 
> Steve
> -----
> 
> RFC 6487 (Certificate Profile)
>  
> Intro:
>  
>    Resource certificates are to be used in a manner that is consistent
>    with the RPKI Certificate Policy (CP) [RFC6484].  They are issued by
>    entities that assign and/or allocate public INRs, and thus the RPKI
>    is aligned with the public INR distribution function.
>  
>    The specific goal for the associated RPKI is to precisely match the INR
>    allocation structure through an aligned certificate structure
>    that describes the allocation and its context within the INR
>    distribution hierarchy.
>  
>  
>  
>  
> RFC 6484 (RPKI CP)
>  
> Overview
>  
>  
>    This PKI is designed to support validation of claims by current
>    holders of INRs, in accordance with the records of the organizations
>    that act as Certification Authorities (CAs) in this PKI.
>  
>  
> Section 3.3.2.  Identification and Authentication for Re-Key after Revocation
>  
>    Each CA operating within the context of this PKI MUST employ
>    procedures to ensure that each certificate it issues accurately
>    reflects its records with regard to the organization to which the CA
>    has distributed the INRs identified in the certificate.  The specific
>    procedures employed for this purpose MUST be described by the CPS for
>    each CA.
>  
>  
> Section 3.4.  Identification and Authentication for Revocation Request
>  
>    Each CA operating within the context of this PKI MUST employ
>    procedures to ensure that:
>  
>    o  an organization requesting revocation is the legitimate holder of
>       the certificate to be revoked.
>  
>    o  each certificate it revokes accurately reflects its records with
>       regard to the organization to which the CA has distributed the
>       INRs identified in the certificate.
>  
> Section 4.2.2.  Approval or Rejection of Certificate Applications
>  
>    Certificate applications MUST be approved based on the normal
>    business practices of the entity operating the CA, based on the CA's
>    records of INR holders.
> 
> 
>> Indeed, I vaguely recall some conversations (on the list?) about the 
>> specific consistency model that the RPKI is trying to achieve.  I wasn't 
>> able to unearth the thread, but what was the conclusion?  That is, what is 
>> the consistency model that the RPKI design team is striving for?
>> 
>> Thanks,
>> 
>> Eric
>> 
>> 
> 

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