[Cryptography] Dumb question -> 3AES?

[Bernie Cosell]

On 11 Aug 2014 at 22:45, Natanael wrote:

> It is possible, but maybe won't have the effect you're looking for. The
> reason for going with 3DES was that DES was strong for its keylength,
> but 
> the keylength and thus keyspace was too small = crackable with 
> bruteforce. Since it wasn't considered likely to fall to cryptoanalysis
> in a relatively short period of time, and people demanded something 
> compatible with existing hardware implementations, 3DES was created 
> rather than ditching DES for another cipher. 3DES provided acceptable 
> strength without massive re-engineering.

> And what about AES? It has a far greater strength, even with AES128
> which 
> actually even have a smaller keyspace (3DES has 3*56 =168 bit keys but
> 112 bit strength due to attacks like meet-in-the-middle, but AES128 has
> close to 128 bits in strength).

What about. say, 5DES?

   /Bernie\

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Bernie Cosell                     Fantasy Farm Fibers
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