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This reminds me of Quantum Cryptography in which Conjugate Coding [1] is used. Conjugate Coding is " A method of transmitting multiple messages in such a way th
by mrkramer 5y ago
This reminds me of Quantum Cryptography in which Conjugate Coding [1] is used. Conjugate Coding is " A method of transmitting multiple messages in such a way that reading one destroys the others. This is called quantum multiplexing and it uses photons polarized in conjugate bases as "qubits" to pass information."
Even if you can detect such communication it is hard to eavesdrop it because:
"Quantum cryptographic systems take advantage of Heisenberg's uncertainty principle, according to which measuring a quantum system in general disturbs it and yields incomplete information about its state before the measurement. Eavesdropping on a quantum communication channel therefore causes an unavoidable disturbance, alerting the legitimate users." [2]
[1] https://en.wikipedia.org/wiki/Conjugate_coding https://en.wikipedia.org/wiki/Conjugate_coding
[2] https://www.cs.mcgill.ca/~crepeau/CRYPTO/Biblio-QC.html https://www.cs.mcgill.ca/~crepeau/CRYPTO/Biblio-QC.html
- max_ 5y agoInteresting. Is there a way you could implement this phenomenon in software/hardware and use it as a next secure channel for communication?
- go_elmo 5y agoSince it is no inherently present physical fact in classical systems, it will have to fight with classical problems (bugs / backdoors etc) which would throw you back to classical encryption for security
- deleted 5y ago[deleted]
- randomname93857 5y agoOTOH, an extraterrestrial civilization can use this method to detect other civilizations - they'll be able to detect when someone attempts to eavesdrop on them. cool.