[Ach] Cipher-Order: AES128/AES256 - was: Secure E-Mail Transport based on DNSSec/TLSA/DANE

L. Aaron Kaplan kaplan at cert.at
Tue Nov 3 23:17:40 CET 2015

> On 03 Nov 2015, at 23:08, Gunnar Haslinger <gh.bettercrypto at hitco.at> wrote:
> Am 03.11.2015 um 22:38 schrieb Aaron Zauner:
>> I recommend double-checking a cipherstring recommendation against
>> *all* 0.9.8 and 1.0.1 branches.
> OK ... thats harder than I expected.
> But than it seems to be unsolvable for me to get a predictable situation by recommending a fixed "Cipher Suite B" String.
> Maybe the recommendation should not be a fixed CipherString but a OpenSSL/Distri-specific String?

This comes back to our idea for bettercrypto which we had ~ a year ago (or even longer ;-) - to make a drop down menu website where you select your OS, your distri version, ssl lib version and clients you want to support -> click “generate cipher string” and there you go.

However, this is probably needs some kind of automatic regression/compatibility testing.

> Or maybe it's possible to write a Script which checks out what OpenSSL offers on this specific platform and "brute-force-tests" with the very common configuration-Options what fits best against to be defined "BetterCrypto-Rules”?Maybe.

How much work can it be?


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