Dimitry Sibiryakov wrote:

> 1) Security algorithm must compare two array of bytes one-by-one;
> 2) Comparsion must stop as soon as any difference found;

I think it's about time I actually looked at the machine code here.
When I moved from 16 to 32bit processors comparing 32bits of data at a time
halved the processing time, but that was not on 'intel' processors. I have
always wondered where we would be today if IBM and chosen a real processor for
the PC rather than a bargain bucket one. The Texas and Nat Semi processors were
indefinitely better back then :(
I must say that I did assume that moving from 32 to 64 bit processors we would
be moving from comparing 4 bytes at a time to 8. Is that not actually the case?

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Lester Caine - G8HFL
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