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Message from discussion CNNIC Root Inclusion
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Justin Dolske  
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 More options Jan 29 2010, 4:39 am
Newsgroups: mozilla.dev.security.policy
From: Justin Dolske <dol...@mozilla.com>
Date: Fri, 29 Jan 2010 01:39:31 -0800
Local: Fri, Jan 29 2010 4:39 am
Subject: Re: CNNIC Root Inclusion
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On 1/28/10 8:07 AM, Johnathan Nightingale wrote:

> If there's truth to the allegation, here, then it should be possible to
> produce a cert. It should be possible to produce a certificate, signed
> by CNNIC, which impersonates a site known to have some other issuer. A
> live MitM attack, a paypal cert issued by CNNIC for example. If anyone
> in a position to produce such a thing needs help understanding the
> mechanics of doing so, I'm sure this forum will help them.

As a related aside...

It would be an interesting experiment to create an addon to crowd-source
checking for such certs. Not as a CNNIC-specific issue, but any case of
valid certs for a site coming from an unexpected CA. It could also be
easily to just store a local record of certs you've encountered, and
warn you when a site's cert has changed.

Justin


 
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