[cabfpub] Updated Certificate Transparency + Extended Validation plan

Rob Stradling rob.stradling at comodo.com
Thu Feb 13 11:23:34 UTC 2014

On 13/02/14 00:11, Jeremy Rowley wrote:
> So far no struggles.  PKI tree looks fine.

Same here.

FWIW, the PKI-related and ASN.1-related code changes were the easy part 
for me.  It actually took me much, much longer to get my head around 
cURL's "multi interface" and implement the scattergun approach to 
logging certs and obtaining SCTs...

http://www.certificate-transparency.org/faq (emphasis mine)
"Will there be a limit on the number of trusted CT logs? Or will every 
CA that wants to run a trusted CT log be able to do so?
Increasing the number of CT logs increases the cost of monitoring for 
domains and auditors but we think “every major CA” is within limits of 
feasibility. However, CAs should protect themselves against collateral 
damage by also logging with third-party CT logs. *High performance can 
be achieved by sending parallel requests* to all commonly trusted CT 
logs and embedding the first n SCT responses."

> Jeremy
> *From:*public-bounces at cabforum.org [mailto:public-bounces at cabforum.org]
> *On Behalf Of *Eddy Nigg (StartCom Ltd.)
> *Sent:* Wednesday, February 12, 2014 3:40 PM
> *To:* public at cabforum.org
> *Subject:* Re: [cabfpub] Updated Certificate Transparency + Extended
> Validation plan
> On 02/10/2014 06:28 PM, From Chema López González:
> Have anyone take into account the current position of EJBCA
> <http://blog.ejbca.org/2013/09/certificate-transparency-and.html>, a
> mayor player in this stuff of digital certificates?
> And I want to see how CAs will struggle when they issue one thing
> initially as a pre-certificate and then place something else into the
> actual certificate and mess with their entire infrastructure maintaining
> multiple PKI trees. Or will poke holes the size of a football field into
> their infrastructure in order to get the desired result. And eventually
> simply drop pre-certificates entirely. That's in the best case, it the
> worse case they either got hacked at some point or messed up their PKI
> trees with who issued what when at which time and to whom...good luck
> with that.
> Regards
> Signer:
> Eddy Nigg, COO/CTO
> StartCom Ltd. <http://www.startcom.org>
> startcom at startcom.org <xmpp:startcom at startcom.org>
> Blog:
> Join the Revolution! <http://blog.startcom.org>
> Twitter:
> Follow Me <http://twitter.com/eddy_nigg>
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Rob Stradling
Senior Research & Development Scientist
COMODO - Creating Trust Online
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