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On Thu, 13 Jan 2005 19:40:34 +0100
Nicolas Vollmar <[EMAIL PROTECTED]> wrote:

> 
> Hi
> 
> I have a small question, is there a significant performance difference
> between  a encrypted and a normal system?
> 

For small day-to-day use, no.   When moving large files (ISO, movies and
so on) there is a noticably higher CPU time,  and you can forget the use
of DMA transfers, you're up into CPU level again.


however.. partition recovery... OUCH OUCH OUCH.

I had a glitchy cable on an IDE drive,  with an 80 gig encrypted
partition. All data got completely unrecoverable due to both that. 
Directory indexes were permanently fucked up with errors after the
encryption was done..  Very upsetting for me at the time, and has made
me re-evaluate the use of encryption for such cases.

Loop-aes is decent, but requires patches to util-linux to make it work. 
dmcrypt is more official and actually appears to be a better
implementation on the paper.  (ok. there was an issue with the IV's but
thats so far out on the theoretical display that its hardly funny
anymore)


//Spider


-- 
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Tortured users / Laughing in pain
See Microsoft KB Article Q265230 for more information.
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