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Hi Arno , thanks for the reply. What if I trick the system to have block size of say 128 instead of the default 16 for my AES driver? Do you know what the side effect could be?
I think you cannot. As long as the block-size for the IV scheme
is 512 bytes, you are stuck with encrypting 512 bytes at a time,
as they have their own IV.
On Fri, Apr 20, 2012 at 05:28:54PM +0800, Rodel Miguel wrote:
> I am implementing a hardware encryption driver but I am having some
> performance issues. One of the areas of performance improvement that I am
> thinking is to increase the number of bytes (unsigned int nbytes) that my
> block cipher driver's encrypt/decrypt function gets; from 512 to 4096
> bytes. My hardware can be maximized to 4kbytes. Do you have any
> suggestions how I can maximize the en/decrypt performance by getting more
> than 512 bytes of data every time the block cipher's encrypt/decrypt is
> Thank you very much for your help!
> Kind Regards,
> dm-crypt mailing list
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx
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One of the painful things about our time is that those who feel certainty
are stupid, and those with any imagination and understanding are filled
with doubt and indecision. -- Bertrand Russell
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