Hi Roque,

This draft seems very complete. I have just a few questions and comments:

1. Section 2. "A failure to comply with this process during an algorithm 
transition MUST be considered as non-compliance with ...
I-D.ietf-sidr-cp". I can't detect in the CP where failing to comply with this 
process would be result in non-compliance. It would be hopeful to more specific 
here.

2. Section 3. The definition of a "Non-Leaf CA" is "A CA that issues 
certificates to entities not under its administrative control." I believe this 
effectively  means "CAs that have children", and if that's the intended meaning 
perhaps that's a better statement. The present definition could apply to a CA 
cross-certifying another CA and other non-child certificate signing. Even if 
those situations don't expect to be possible within the RPKI, it would be 
helpful to clarify the definition. Also, it's not clear to me that a child CA 
is "under its administrative control" in the sense that the child CA (e.g., 
ISP) might not be administered by the parent (e.g., RIR).

3. Section 4.2. "The only milestone that affects both CAs and RPs, at the same 
moment is the EOL date.". But the "Process for RPKI CAs" figure shows that two 
milestones are aligned: (5) and (6). How do these reconcile?

4. Section 4.3. The alignment errors that Arturo mentioned don't seem to be 
fixed in -01. Did you mean to adjust them? Also, it might be worth stating 
explicitly in the Note following this first example that the indentation mean 
"signed by".

5. Section 4.5. "During this phase all signed product sets MUST be available 
using both Algorithm Suite A and Algorithm Suite B." It isn't clear to me what 
"During this phase" means in Phase 2. Does it mean "By the end of this phase"? 
Or does it mean "Before the start of Phase 3", which is not the same moment in 
time according to the figures in Section 4.2. I'm inclined to think it means 
"Before the start of Phase 3", because by Phase 3 "all product sets are 
available". Although again, Section 4.6 uses the phrase "During this phrase" so 
that also isn't clear and I would recommend being more precise here too.

6. Section 4.5. "An RP that validates all signed product sets using both 
Algorithm Suite A or Algorithm Suite B, SHOULD expect the same results." The 
text added to this paragraph in -01 clarifies how to resolve certificate 
validation results that differ, but I think it would be helpful to include 
references to both Sections 6 and 7 here which cover issues when on there are 
differences in validation more thoroughly.

7. (nit) The references for I-D.ietf-sidr-cp didn't get updated to -17. I 
didn't check other references.

Thanks,
Brian

On Jul 8, 2011, at 9:14 AM, Roque Gagliano wrote:

> In this new version we included the changes from the review by Arturo and 
> several editorial nits.
> 
> Please take a look at the document and send your comments.
> 
> Roque.

-- 
Brian Weis
Security Standards and Technology, SRTG, Cisco Systems
Telephone: +1 408 526 4796
Email: [email protected]





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