Re: Math processor

netbogus@xxxxxxxxx wrote:
> I'm replying my own post trying to answer all at once; sorry if it's
> confusing.
>
> So, let me make myself a little clearer; I understand I was vague. So,
> here is the thing...
> I'm finishing my graduation in computer engineering and I'll start next
> year a circuit to encrypt data. This is my final project. I choosed to
> implement RSA algorithm (which has operations like mod, -,+, *, ^,
> etc). I would like to work with keys from 640-2048 bits long. I was
> definetly wrong asking for floating point processors, by the way. I
> have just noticed that.
> So, like I said before the project actually starts next year. I'm still
> considering all stuff; even the algorithm... I came here trying to get
> general information about possible designs.
>
> Once again, thank you all for all help
> I really appreciate.
>
> my best regards,
>
> lz.

There is an RSA library for the d*** that can do 2048bit RSA
encryption:
http://ww1.microchip.com/downloads/en/DeviceDoc/70127b.pdf
It can do an 1024bit RSA encryption in 7ms.
Probably costs a bit though, and I'm guesing you don't want an off the
shelf solution, although that would make your project easy :->

You could do the same on any 8bit micro like PIC or AVR, but it won't
be nearly as fast.

Perhaps you can slant your project towards something low end like "How
to do RSA encrytion on a $0.50 8pin PIC micro in under 2KB". That might
be more achievable than say "The worlds fastest 2048bit RSA encryption
algorithm" implemented in a bleeding edge FPGA. There are plenty of
people out there designing super fast encryption algorithms, so it
might be hard to do something unique in that respect.

Dave :)

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