Can you keep a secret? This encrypted drive can...

[David Johnston]

Leichter, Jerry wrote:
> | Jon Callas wrote:
> | > 
> | > 
> | > Moreover, AES-256 is 20-ish percent slower than AES-128. 
> | Compared to AES-128, AES-256 is 140% of the rounds to encrypt 200% as much
> | data.
> AES-256 has a 256-bit key but exactly the same 128-bit block as AES-128
> (and AES-192, for that matter).
>
> |       So when implemented in hardware, AES-256 is substantially faster.
> | 
> | AES-256 - 18.26 bits per round
> | AES-128 - 12.8 bits per round
> | 
> | I imagine that this would matter when the implementation is in a hard disk or
> | disk interface.
> It would, if it were true.
> 							-- Jerry
>   
 I stand corrected.. The source of my error was reading the rijndael 
spec, not the nist spec.

DJ

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