Hi all,

> On 26 Oct 2016, at 17:35, Christopher Morrow <morrowc.li...@gmail.com> wrote:
> 
> which leaves to be dealt with by Chicago 2 documents:
> draft-ietf-sidr-rpki-tree-validation

You may have just seen the -03 version posted.

This version now includes a scope section to make it clear that:

   This document describes how the RIPE NCC RPKI Validator version 2.23
   has been implemented.  Source code to this software can be found
   here: [github].  The purpose of this document is to provide
   transparency to users of (and contributors to) this software tool, as
   well as serve to be subjected to scrutiny by the SIDR Working Group.
   It is not intended as a document that describes a standard or best
   practices on how validation should be done in general.

The full name of the document "RPKI Certificate Tree Validation by the RIPE NCC 
RPKI Validator" was always clear on the scope. And we mentioned it at various 
occasions. The short name "RPKI Tree Validation" may be somewhat confusing - we 
are open to suggestions btw.. plus, if the IETF (SIDR-OPS most likely) wants to 
take on the work of making a general validation document, we would be happy to 
contribute to it in separate document.

We really value the feedback that we got from the working on this document. 
Although not all feedback is reflected in the current implementation (and 
therefore in the main body of the document) - we have included these 
discussions in the Security Considerations section. We believe that none of 
these issues qualify as showstoppers to the software described at this time, 
but we may well address them in future releases.

There was some discussion at the last IETF about how to deal with a document 
like this. It describes a moving target. Our implementation is subject to 
change after all.

We prefer to tackle it by going for last call on this document describing 
version 2.23 as soon as is allowed by IETF, in the SIDR WG. As far as we are 
concerned this is done. Of course if there is any remaining unclarity we will 
address.

If and when future releases of our software include significant changes in the 
validation algorithm, we plan to document transparently. Pragmatically speaking 
we believe that minor things can be documented in the README of future releases 
(.. works like RFC-### with these exceptions). For bigger changes however, or 
whenever our code stabilises again, we would probably seek to either update the 
existing document, or create a new document. We would prefer to run any such 
work through SIDR-OPS once established, but individual submission is also an 
option.

In the end what matters to us most is that we have a clear description of how 
the code works, and provide full transparency on considerations.

Kind regards

Tim & Oleg







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