Re: Loop-AES, security concerns, stability of file backed loop-aes

[a.engels@xxxxxxx]

> > I also read some pages about a (very theoretical) attack of AES. Does
> > somebody have benchmarks for AES128, AES256 and other ciphers like
> twofish
> > etc? Are the performance differences between these ciphers even
> noticeable
> > on a P4 3 GHz running database services and Samba?
> 
> I don't have a link for benchmarks but would be interested in one
> though. By rule of thumb, you won't notice loop-AES on such a large
> machine if the server load is low/medium. AES is implemented in
> optimized assembler code.
> 
> AES was picked because of its strength and speed. Serpent made 2nd
> place (it's considered slightly stronger than AES but slower - IIRC).

Yes, but if I read the source code correctly, only AES128 is asm pentium
optimized, not AES256.

For security of AES and Serpent have a look at:
http://www.cryptosystem.net/aes/

If speed isnt really a problem with modern hardware, it would be nice to
know the opinion of crypto analysts which one the safest cipher is according
to current knowledge. 


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