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

[Terje Elde]

> On 09 Nov 2015, at 13:23, Aaron Zauner <azet at azet.org> wrote:
> 
> How exactly is CAMELLIA helping here? Such a key leak probably affects
> multiple ciphers.

Possibly, not probably.  Depends on the leak really.  For timing-attacks for example, susceptibility would depend not only on the algorithm, but the specific implementation of it.

If there’s ever an attack against hardware-implementations in a CPU (AESNI, similar from AMD etc), it’s very unlikely that it’d affect anything but AES, especially given that it’s typically the only symmetric block cipher that’s catered for.

Terje

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