Practical Quantum No-Key Protocol with Identification

摘要：

Quantum no-key protocol is a quantum realization of Shamirs idea of no-key cryptosystem, which can be used to transport quantum and classical message secretly. It is beyond computational security. We give a practical quantum no-key protocol with mutual identification. In order to prevent MIM (man-in-the-middle) attack, we realize secure information transmission and identification by utilizing a short pre-shared secret bit sequence. And we use pseudo-random sequences to mix the photons which are used for information transmission and the photons which are used for identification. Pseudorandom sequence partly protects the secret sequence and makes our protocol more practical while do not weaken the security. We post a schematic diagram of the experimental setup which is based on fiber communication system. Our protocol does not need entanglement, multi-qubit operation or classical communication.

关键词： quantum cryptography quantum no-key protocol practical

作者: Yang Wu Li Yang

作者单位: State Key Laboratory of Information Security Graduate University of Chinese Academy of Science Beijing,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 540-543

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）