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Date: Wed, 16 Apr 2014 20:20:21 +0200
From: Hanno Böck <>
Subject: Re: [FD] Audit: don't only focus on heartbleed issue

On Wed, 16 Apr 2014 18:10:15 +0800
Shawn <> wrote:

> I do believe Lucky-thirteen is far
> more dangerous than heartbleed, we just don't know.

I'd really like to hear some arguments to back that claim.
Basically, Lucky13 is a protocol problem and thus the fix is a bit less
obvious than for heartbleed.

But appart from that: Lucky thirteen only poses a threat if you can
capture insane amounts of the same data encrypted. I never saw any
scenario where I thought this is really a practical threat.
"Getting the private key and other random stuff from Server's memory"
definitely is.

I am all for fixing things like BEAST and Lucky13 and I hope we can
soon all switch to either AES-GCM or AES-CBC with the hopefully soon
released Encrypt-then-MAC extension. But we should keep perspectives:
Heartbleed is a big problem, Lucky Thirteen is minor in comparison.

Hanno Böck


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