>Here are the MD5 certificate numbers we measured using Google Chrome's
>usage statistics collection service:
>http://dev.chromium.org/developers/md5-certificate-statistics

I don't see any way to edit that page, so I'll have to correct it here. The 
first sentence is deceptively wrong, as we have discussed on this mailing list 
many times. The attack is not on "CAs that issue certificates signed with 
MD5-based signatures", it is on "CAs that issue certificates signed with 
MD5-based signatures and whose serial number and date of issue and revocation 
is predictable". There is a huge difference.

This makes the second sentence, "As a result, some browser developers are 
planning to drop support of MD5 certificates at some point" somewhat wrong as 
well. It would be much better stated "Because a browser cannot determine 
whether or not a CA uses unpredictable serial number and date of issue and 
revocation, some browser vendors...".

--Paul Hoffman
--
dev-tech-crypto mailing list
dev-tech-crypto@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-tech-crypto

Reply via email to