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Quasars Used for Encryption

Posted by ryuzaki0 on from the grain-of-salt dept.

space_mongoose writes "According to this NewScientistTech story, intergalactic radio signals from quasars could emerge as an exotic but effective new tool for securing terrestrial communications against eavesdropping"

3 of 53 comments (clear)

  1. so... by gcnaddict · · Score: 2, Interesting

    We use really fast neutron stars which generate radio waves in order to encrypt our content?

    So if someone has a list of all quasars and their radio frequencies, can't they brute force the message and break it in, what, 20 seconds?

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  2. Lava Lamps by spiralscratch · · Score: 2, Interesting

    What, lava lamps aren't good enough anymore?

  3. Quantum entanglement? by CrosbieFitch · · Score: 2, Interesting

    If Quasars are correlated photon emitters, then perhaps they can be used for encryption in the same way as quantum entanglement is used already?

    All you have to do is ensure that both commnuicating parties sample ENOUGH of the particles arriving at earth, and presumably enough of them will be entangled such that any other observer would have a statistically observable effect on their communication, i.e. detectable as an interceptor.

    OK, that's sounds hopeless.

    How about if there was one day found to be a way of communicating via entanglement? Then perhaps quasars might well be great sources of entangled particles.

    Remember, science is not advanced by claims of "Impossible!", but by "I wonder if..."