[Hardware] "success"

[Dan Oetting]

On Oct 20, 2006, at 9:07 PM, Martin Klingensmith wrote:

> Well Kris,
> There are a lot of devices that can do it, dare I say just about any
> FPGA. But to do it fast you need a LOT of registers one way or  
> another -
> pipelined or paralleled.
> The algorithm I have nearly complete requires a device slightly larger
> than a Spartan 3 - 1.6 million "gates" device. It would only run at 55
> MHz but would run one key per clock cycle so it would theoretically do
> 55 million keys per second.
> This is just an estimate of course. Flame suit on..

Now, if you want a scary number, find the power requirement of this  
chip running at that clock speed. Then compute the required run time  
to crack RC5-72 on the device. And finally, multiply the product of  
those by the cost of electricity in your area.

-- Dan O.