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Is the newly born quantum cryptography the ultimate solution for information security? A technique needs to be both theoretically strong and practically viable. But quantum cryptography comes to naught in the latter. The authors present here some of the quantum's theoretical weaknesses like lack of digital signatures (or any algorithm) along with its many real time implementation problems. They further pursue with the discussion about the potency of classical cryptography and its splendid capabilities in providing security. Quite recently, they witnessed an important advancement in data transmission that has its roots from quantum mechanics.
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