Quantum crypto edges closer

    Date14 Dec 2001
    CategoryCryptography
    3237
    Posted ByAnthony Pell
    British boffins have made a breakthrough in quantum cryptography, an advanced code-making technology which is theoretically uncrackable, by developing a single photon-emitting diode. The researchers from the University of Cambridge and Toshiba have discovered a way of incorporating semiconductor nano-technology into . . . British boffins have made a breakthrough in quantum cryptography, an advanced code-making technology which is theoretically uncrackable, by developing a single photon-emitting diode. The researchers from the University of Cambridge and Toshiba have discovered a way of incorporating semiconductor nano-technology into an LED so they can trigger the emission of single photons at regulated times.

    This is important because the security of optical quantum cryptography relies on sending a single photon carrying digital information between two parties exchanging encoded information.

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