[viff-devel] AES slides from SPEED-CC

2009-10-16 Thread Martin Geisler
Hi everybody,

The slides from SPEED-CC are up:

  http://www.hyperelliptic.org/SPEED/
  http://www.hyperelliptic.org/SPEED/timetable.html

There are two talks about how to implement AES efficiently, this one

  http://www.hyperelliptic.org/SPEED/slides09/kasper-aes_speedcc09_slides.pdf

describes on slide 9 how one will typically combine SubBytes, ShiftRows,
and MixColumns into one operation operating on diagonals. I don't know
if that will matter for us?

-- 
Martin Geisler

VIFF (Virtual Ideal Functionality Framework) brings easy and efficient
SMPC (Secure Multiparty Computation) to Python. See: http://viff.dk/.


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Re: [viff-devel] AES slides from SPEED-CC

2009-10-16 Thread Marcel Keller

Hi,


There are two talks about how to implement AES efficiently, this one

  http://www.hyperelliptic.org/SPEED/slides09/kasper-aes_speedcc09_slides.pdf

describes on slide 9 how one will typically combine SubBytes, ShiftRows,
and MixColumns into one operation operating on diagonals. I don't know
if that will matter for us?


I don't think so because lookup tables are not efficient in MPC.

Regards,
Marcel


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