https://bugzilla.wikimedia.org/show_bug.cgi?id=53259

--- Comment #2 from Seb35 <[email protected]> ---
The blog post [1] explains the "forward secrecy" property only adds a +15% in
CPU load for ECDHE ciphers, but +300% for simple DHE ciphers. Probably the
Operations team should carefully review this bug before activating it for
performance reasons. Nowadays only Chromium and Firefox support FS, Opera only
supports DHE ciphers and Internet Explorer don’t support FS; I don’t know for
Safari.

This other blog post [2] (and blog) explains how Google configured FS: why they
chosed ECDHE (this performance reason) and how they configured session tickets.

[1] http://vincent.bernat.im/en/blog/2011-ssl-perfect-forward-secrecy.html
[2] https://www.imperialviolet.org/2011/11/22/forwardsecret.html

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