One Time Pad Encryption Over Radio
github.com
github.com
At least in the USA, I'm nearly 100% sure that this is in violation of the Part 97 rules.
If any unknowing HAM transmits anything from this, they are in for a world oh hurt.
(a)(4) ... messages encoded for the purpose of obscuring their meaning, except as otherwise provided herein...
With one exception being telecommand of a space station (and possibly model craft).
Source: http://www.arrl.org/part-97-amateur-radio (and the PDF linked there)
We wanted to do a few projects that were stunted due to this arcane law.
It's the same as if you have a noisy transmitter.
Encrypted meaningless noise on the air would be a "selfish" waste of spectrum incompatible with the neighbourly spirit espoused by most amateur radio organizations and hams themselves, not to mention damaging to the self-policing they're supposed to do.
I alsl expect it wouldn't be "allowed" to persist as a hobby in its current form in many parts of the world if you added the threat of casual encrypted communications, beyond the reach of CALEA-type intercept capabilities into the mix.
https://en.wikipedia.org/wiki/Numbers_station
Not quite as mysterious and intriguing, but still pretty cool.