目前量子密钥分发(QKD)已成为量子通信应用研究的一个主要方向,越来越多的研究证明,一些QKD协议具有完全保密性,但是能由此得到量子密码系统甚至量子通信是完全保密的结论吗?量子通信保密还需要量子加解密技术吗?论文重点对量子通信安全性和量子通信保密的解决方案进行了详细分析和探讨。 At present, quantum key distribution (QKD) has become a major research direction of quantum communication applications. More and more researches prove that some QKD protocols are completely confidential, but quantum cryptography and even quantum communication can be completely secreted Conclusions? Do quantum cryptography also require quantum cryptography? The paper focuses on detailed analysis and discussion of quantum cryptography security and quantum cryptography solutions.