3 ms·
Could it be a powerful sonic transmission of data? I mean, EM waves are hugely monitored, so if somebody had to send data secretly, an ultrasonic way may be use
by henearkr 9y ago
Could it be a powerful sonic transmission of data?
I mean, EM waves are hugely monitored, so if somebody had to send data secretly, an ultrasonic way may be used.
And there may have been a side effect due to too much power and the diplomats being in the middle of the beam.
- deleted 9y ago[deleted]
- qubex 9y agoDepends whether you are aiming to conceal the fact that a signal is being transmitted or whether you "merely" wish to conceal the contents of those signals. The latter is (as I am sure any NH reader knows all too well) achieved my means of encryption, at least some of which, paranoia aside, is widely regarded to be pretty solidly robust to just about anything known (even most of the NSA-quantum-computer speculation is focussed on public key cryptography being attacked by factorisation attacks... lattice algorithms and lots of stream ciphers are not directly attackable by this means if the session key is not exchanged by "potentially vulnerable" public key cryptographic means).
- henearkr 9y agoYeah I was thinking more about concealing the fact there was a signal at all. More like stegano, then. Moreover, that could be in an environment of intense EM jamming: ultrasonic signals would pass but not EM signals.