[Top] [All Lists]

Re: Next Steps

2007-11-07 06:47:31

nagydani(_at_)epointsystem(_dot_)org (Daniel A. Nagy) writes:

No, it is not. A single block operation takes almost half a second on
NOKIA 3410, which means that encrypting a simple text message takes seconds,
which is not nice from a user experience PoV.

Huh!  Are you sure you're using an AES implementation that's optimized
for your platform?  You can get an order-of-magnitude improvement by
optimizing the code (or running an assembler version).  Obviously there
are time/space tradeoffs to be made as well, but I find it hard to
believe that it takes 500ms for a single block operation even in an
optimized implementation.

       Derek Atkins                 617-623-3745
       Computer and Internet Security Consultant