On Jan 4, 2009, at 9:11 PM, Paul Hoffman wrote:
At 9:02 AM +0200 1/4/09, Yoav Nir wrote:
Best we can do is to get the CAs to
(1) not issue MD5 certs anymore and
(2) randomize the serial number and/or
(3) and a random fluff extension that people are talking about
Just to repeat it one more time: #3 does not prevent the published
It does if the random fluff is inserted by the CA. The attack depends
on their ability to predict the entire TBS part.
But still, I don't see Microsoft removing a root CA because one of
their sub-CAs is issuing non-compliant certificates.
It is hard to see Microsoft removing or adding CAs. If anyone knows
of a public interface (mailing list, web site, whatever) for when
this happens, by all means please the world know.
I managed to find a page with their policy on adding new root CAs.
Nothing there about removing old root CAs.
And if Microsoft don't, nobody else will. The Firefox/Opera/Safari/
Chrome people don't want any sites that "only work with Explorer".
At least with respect to Firefox, I think that statement is false.
They've done quite a bit to render broken sites that were made for IE.
Also, I've updated today and all the "bad" CAs with MD5 signatures are
still in the TAS.
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