Re: Which AES to use?

I don't know cryptopgraphics very well but the data throughput would be 
a little better with lower keysize. However with a powerful CPU (maybe 
AES-NI instructions included) this wouldn't matter anymore.

As compromise you could choose AES-192 if you need it more secure than 
128 bit.

Finally quoted from Bruce Schneiers Blog:
"And for new applications I suggest that people don't use AES-256. 
AES-128 provides 	more than enough security margin for the forseeable 
future. But if you're already using AES-256, there's no reason to change."

Best regards
Robert

Am 25.09.2011 23:17, schrieb Robert Simmons:
> I've been reading on Bruce Schneier's blog about key diffusion and the
> key schedule in AES 256 being poor.  Including this, for use in a geli
> encrypted provider, what are the pros and cons of selecting AES 128,
> 192, or 256?
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