[openssl-dev] Circumstances cause CBC often to be preferred over GCM modes

Hanno Böck hanno at hboeck.de
Tue Dec 16 14:38:01 UTC 2014


On Tue, 16 Dec 2014 15:14:13 +0100
Hubert Kario <hkario at redhat.com> wrote:

> No, this is problem with OpenSSL cipher order - it prefers key size
> over other factors - it should prefer AEAD and PFS ciphers before
> ordering on key size, doubly so that in practice you can't get
> anywhere near 256 bit level of security using TLS.

Agreed, this is one of the things I think that should happen.

I got a reply on the chromium list that this is already so in
boringssl. Code is in ssl/ssl_ciph.c

If there is consensus that this should be ported I would try to isolate
the neccessary patches from boringssl and submit them.


-- 
Hanno Böck
http://hboeck.de/

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