基于循环码和信息压缩融合的量子保密通信算法

针对经典保密通信中信息安全传输的问题,提出了一种基于循环码和信息压缩的量子保密通信算法。首先,发送端对传输的信息进行预处理,将其分割为长度不等的2组数据,分别用于循环编码和压缩编码。然后,发送端添加一串量子态传输至接收端,采用误码数作为信道安全检测的依据,若信道安全,则对预处理后的数据量子态处理,利用量子稳定子码编码分段并传输,依据稳定字码的特性克服环境引起的误码。最后,接收端接收到量子信息后进行解码,并解循环和解压缩从而获得数据。安全性分析表明,所提量子保密通信算法能较好地抵抗篡改和截断信息的攻击。仿真结果表明,对于数据压缩部分按5分段能获得较好的效果。

Quantum secure communication algorithm based on cyclic code and information compression

For the problem that the classical secure communication was challenging to transmit information,a quantum secure communication algorithm based on cyclic code and information compression was proposed.First,the data was encoded into two sets of data with different lengths by the sender,one set of data was used for cycling coding and the other one was used to compress coding.Second,single-photon sequence was transmitted to the receiver on the quantum channel by the sender.The error number was used as the basis of channel security detection.If the channel was secure,quantum states were encoded for the data,and segment transmitted by quantum stabilizer codes.The error caused by the environment can be overcome according to characteristic of the stable code.Finally,the information was decoded after receiving the quantum information,then recirculated and decompressed to obtain data.The security analysis shows that the quantum secure communication algorithm can resist the attack of jamming and spoofing attacked.The simulation results show that good results can be obtained to 5 segments for data compression.