On 9/6/14, 8:38 AM, Kosuke Kaizuka wrote:
On Sat, 06 Sep 2014 16:34:06 +0200, Sjw wrote:
Hi everyone

At present, there are a lot of articles, that the weak SHA1 certificates
with a long duration will be marked as weak/insecure in some browsers
soon and in a few years they won't be accepted anymore.
Does Mozilla have similar plans? Sadly I can't found a similar option in
current Nightly.

Please see Bug 942515.

https://bugzilla.mozilla.org/show_bug.cgi?id=942515


Also see: https://wiki.mozilla.org/CA:Problematic_Practices#SHA-1_Certificates


Here's a proposal regarding indicators about SHA1 certificates...

1) Mozilla could (relatively quickly) add a security warning to the Web Console to warn about SHA-1 certificates that expire after January 1, 2017. The target audience of this indicator is web developers and web site administrators inspecting their pages.

https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Security_warnings_and_errors

2) After January 1, 2017, Firefox would show the "Untrusted Connection" error whenever a SHA-1 certificate is encountered.** Note that the "Untrusted Connection" error is overrideable.

3) Based on telemetry, at some point after January 1, 2017, move the SHA-1 error to not-overrideable.** Note that it could remain overrideable for self-signed certs.

** Of course, Mozilla would take this action earlier if needed to keep users safe.


Does that sound reasonable?

Kathleen

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