aes again

[Newsmail <newsmail@xxxxxxxxxxxxxxxx>]

well Marc you said I dont have to use AES256, but well even if I dun use it 
I'M interested in the difference between the 128. simple question, more 
easy to break 128 than 256?
I read at loop-aes readme that for keys over 20 caracters it uses aes192, 
and over 40 caracters it uses 256. why is that?
greg

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Linux-crypto:  cryptography in and on the Linux system
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