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[Ach] Current bettercrypto.org cipher list (apache) and https://www.ssllabs.com/ssltest

Adi Kriegisch adi at kriegisch.at
Thu Nov 13 08:18:48 CET 2014


Hey!

> just update my apache configuration to latest cipher list of bettercrypto.org and checked the server using https://www.ssllabs.com/ssltest
>
> I get a report: "The server does not support Forward Secrecy with the reference browsers."
>
> Beneath "Handshake simulation" most reference browsers show a "TLS_DHE_RSA..." cipher, following reference browsers do not use FS:
(...)
> Is there something missing in the cipher list?
Most probably your version of Apache (v2.2?) does not support elliptic
curves (ECDHE); therefor you won't get forward secrecy with IE (except for
IE11 on Windows 8 which supports DHE).
You may either have a look at the Debian projects version of Apache
(because they backported EC-Support to Apache 2.2) or (probably better) put
an nginx in front of Apache because only the very latest versions of Apache
support Diffie Hellman parameters stronger than 1024bit.

-- Adi
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