一种更加安全的密码技术——量子密码

信息安全技术备受世人关注,由于现有的加密方法存在着很多弊端,人们将目光转向了量子密码。根据量子力学中的海森堡不确定性原理,任何窃听者都无法窃听量子密码通信中的信息而不被发现,笔者正是从量子不确定性基本原理出发来研究量子密码技术的,结合量子密码协议在通信网络中的应用来探讨了在量子通信过程中量子密钥生成、分发的详尽过程及量子密钥的分发协议在通信中应该遵循的原则,介绍了当前实验研究的进展,分析了量子密码研究存在的问题,并针对这些问题提出了一些建设性意见,最后对量子密码的发展前景和方向进行展望。

One Kind of Safer Cryptographic Technique: Quantum Cryptography

With the development of computer and communication technology, many people pay close attention to information security technology. Considering that the current encryption has many malpractices, some persons turn attention to quantum cryptography. Quantum Key Distribution is based on the principles of Heisenberg's uncertainty which guarantees that no eavesdropper can escape detection. According to this principle, this paper makes a study of the quantum cryptography technique, discusses the course of quantum key production and distribution in the quantum communication and the principle of quantum key distribution protocol in the communication by combining the application of quantum key protocol in the communication network. Current experimental progress on this aspect is introduced, existing problems are analyzed and some constructive suggestions are proposed. Finally, the developing trend for the theory of quantum password is prospected.