The quantum cryptography communication is the combination of classicalcryptography theory and quantum mechanics.
量子密码通信是经典密码学与量子力学相结合的新兴交叉学科。
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Quantum cryptograph has extraordinary adaptability to the optical communication and unconditional security which classicalcryptography has been striving for.
量子密钥分配特别适合光通信环境,而且可以实现无条件安全性。
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RSA, as a classical public key cryptosystem and a very important part of the cryptography, is the keystone and difficulty of the cryptography teaching.