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

[Marcos el Ruptor]

> Compared to AES-128, AES-256 is 140% of the rounds to encrypt 200% as much 
> data. So when implemented in hardware, AES-256 is substantially faster.

Excuse me, AES-256 has the same block size as AES-128, that is 128 bits. 
It's in fact slower, not faster, and in hardware it also occupies a 
substantially larger area.

If you are talking about Rijndael with 256-bit blocks, that's not AES and 
its variant with 256-bit keys would still be slower and would also occupy a 
substantially larger area in hardware than its counterpart with 128-bit 
keys.

Ruptor 

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