Quantum cryptography: yesterday, today, and tomorrow
Quantum cryptography is one of those amazing tools that came along before anyone really asked for it. Somehow there are companies out there selling very high end, and “provably secure” cryptography gear, all based on fundamental principles of quantum mechanics. Yet, despite being fundamentally unbreakable, there have been quite a few publications on more-or-less practical ways for Eve to eavesdrop on people whispering quantum sweet-nothings in darkened rooms.
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