Hmmm, does not look too good (Score 1)

Ok, let's go scientific... They mention optics and quantum stuff, which probably means, that they are using photons as information carriers. Now the photons are "wave packets" with corresponding wavelength/frequency. The frequency of visible light is approximately 10^15 Hz (cycles per second), and the corresponding wave period is proportional to 10^(-15) sec. Thus in 12 usec one can radiate something like 12*10^(-6)/10^(-15)=12*10^9 (12 billions) periods of wave corresponding to visible light. Even if they are not using visible light, this will correct the number only by 1 or 2 orders of magnitude (one should also keep in mind, that photon is not exactly one period of the wave but rather a wave packet. Conclusion: something is definitely wrong here, because it should be pretty damned hard to crack 512 bits key, having only 12 billion information carriers in posession ;-). Just my $0.02