CAJ | 학술논문

实际的量子密钥分发过程中,传输损耗和探测器的效率都直接影响密钥的产生效率.量子身份认证需要通信双方保证认证信息的完整性.针对以上问题,提出了一种基于光子偏振旋转的量子身份认证协议,利用对认证信息的重复编码解决传输损耗问题,考虑到协议的安全性,该协议在相邻的有效认证量子态间编入随机态,安全性分析表明该协议可成功抵御截取重发攻击以及光子数劈裂攻击.在此基础上,设计了现有技术条件下可操作的认证系统方案,考虑了传输损耗和探测效率,具有实用意义.
실제적양자밀약분발과정중,전수손모화탐측기적효솔도직접영향밀약적산생효솔.양자신빈인증수요통신쌍방보증인증신식적완정성.침대이상문제,제출료일충기우광자편진선전적양자신빈인증협의,이용대인증신식적중복편마해결전수손모문제,고필도협의적안전성,해협의재상린적유효인증양자태간편입수궤태,안전성분석표명해협의가성공저어절취중발공격이급광자수벽렬공격.재차기출상,설계료현유기술조건하가조작적인증계통방안,고필료전수손모화탐측효솔,구유실용의의.
In the practical distribution process of quantum key, the transmission loss and efficiency of detectors have a direct impact on the efficiency of key generation. The quantum identity authentication requires both communication sides to ensure the integrity of the authentication information. Considering the problems above, a quantum identity authentication protocol based on photon polarization rotation is proposed, in which repetition coding is used to solve the problem of transmission loss. In order to guarantee the security of protocol, random states are inserted into the adjacencies of the useful authentication quantum states. Security analysis shows that the protocol can successfully resist the intercept-resent attack and beam-splitting attack. Furthermore, a useful authentication system practicable under present technical conditions is designed. It is helpful in applications that transmission loss and detection efficiency are taken into consideration.