On Wed, 25 Aug 2010 10:28:25 +0100, Orchid XP v8 wrote:

>>>>> Binary shifts are multiplication and division as well. :P
>>>> What you want is binary rotations. ;-)
>>> That depends on whether the bits actually get rotated.  From my
>>> recollection of x86 assembly, it's a shift, not a rotation. :)
>>>
>>> Jim
>> 
>> My recollection, of course, has changed now that I re-read this, I
>> remember ROR and ROL operators, which do in fact rotate.  I just
>> remember using SHL and SHR more frequently.
> 
> Whether your processor supports it or not, binary rotations exist. You
> can implement them the hard way if you must. I've seen a few block
> ciphers that use 'em too...

Well, that's why I said what I said about my faulty recollection. ;-)

Jim

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