On Apr 23, 2013, at 10:21 AM, Edward Lewis <[email protected]> wrote:

> I'm going to attempt to reply to a few messages in one.

… and I'm going to snip a whole bunch of text and just respond to part of it :-)


[ SNIP ]

> 
> On Apr 22, 2013, at 17:48, Warren Kumari wrote:
> 
>> Um, I'm probably missing something obvious here, but you cannot use CDS to 
>> enroll in DNSSEC. This means that you'll have to use the original 
>> out-of-band system -- what if we extend Wes's radio buttons to include ZSK / 
>> KSK[0]?
> 
> Ultimately, I'm still uncomfortable with anything that does not use the 
> out-of-band mechanism.  

Unfortunately the whole point of the CDS draft is to allow rolling of keys 
without having to do the whole out-of-band thing. 

The problem statement is basically: "It is really annoying to have to go to my 
registrar (or whatever other parental relationship I have) and click through a 
whole bunch of screens to finally get to the place where I enter the DS. I'm ok 
to do this once or twice, but having to do it <blargh> times every <foo> sucks 
and so I just don't do it at all".

(where <blargh> is the number of domains I hold and <foo> is my key roll 
interval (and *please* let's not get into any religious arguments about the 
value (or even units) of <foo>))

> At the start of this thread was the question of "what if the secrecy of the 
> KSK private key is lost? How do you go forward?"

You:
1: Curse.
2: Figure out how it happened.
3: Bitch at Bob, who decided to back it up by printing it out on a pile of 
8.5"x11" and then left it under his keyboard.
4: Suck it up and log onto the registrars web site (or however else you 
securely communicate with your parent) and click the "Delete *ALL* DS records" 
button, then click the "Add DS record" button and manually enroll a new DS 
(just like you currently do…)
5: Remove Bob's sudo access.
6: Profit!

> 
> Conventional wisdom du jure is that the only "gotta do it" reason for a key 
> change is just about that case.  All the other reasons are more or less 
> window dressing.  (Yes, you could totally lose the private key, but then 
> there's no way to roll out of it "in band.")

This is only "conventional wisdom" amongst some folk -- some folk wish to be 
able to roll their keys every X weeks / months / years. This is for a variety 
of reasons, from the sane to the crazy, but it (IMO) their right to decide how 
often (or even if) they wish to roll.

>  I can't see how a reasonable approach can be made to work only in-band.  
> Ever.  Where reasonable means "has no gaping holes that might actually happen 
> in operations.
> 
> 
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Edward Lewis             
> NeuStar                    You can leave a voice message at +1-571-434-5468
> 
> There are no answers - just tradeoffs, decisions, and responses.
> 
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-- 
There are only 10 types of people in this world -- those who understand binary 
arithmetic and those who don't.


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