[cabfpub] Ballot 144 -.onion domains

kirk_hall at trendmicro.com kirk_hall at trendmicro.com
Fri Feb 13 19:25:06 UTC 2015

Maybe you're right on that point, Gerv.  

One other question:   Does Tor do revocation checking for .onion certs?  I'm guessing not for privacy reasons...  I know some browsers have given up some revocation checking (a mistake in my opinion), but if we know an application never checks for revocation as a matter of policy, that would concern me.  There would be no way to remove a bad cert (used for fraud or abuse, or misissued to the wrong party) from the Tor system, even if the CA revokes it.

-----Original Message-----
From: Gervase Markham [mailto:gerv at mozilla.org] 
Sent: Friday, February 13, 2015 9:58 AM
To: Kirk Hall (RD-US); Tom Ritter
Cc: Jeremy Rowley (jeremy.rowley at digicert.com); Ben Wilson (Ben.Wilson at digicert.com); CABFPub (public at cabforum.org)
Subject: Re: [cabfpub] Ballot 144 -.onion domains

On 13/02/15 17:51, kirk_hall at trendmicro.com wrote:
> Terrific calculations, Tom -- but I'm wondering how hard it was for 
> Facebook to get their multiple .onion domains that included 
> "facebook".
> Yes, I'm concerned about the possibility of an exact clash, but I'm 
> also concerned about the ability of a hacker to get a .onion domain 
> that includes names commonly sought by hackers.

Insofar as this issue is in scope for the CAB Forum, why can't we solve it using exactly the same mechanisms we use to solve it for non-onion domain names?


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