基于纠错技术的量子密钥协商改进算法  

Improved Quantum Key Reconciliation Algorithm Based on Error Correction

作　　者：李渊[1] 孟银阔[1] 杨宇[1] 胡之惠[1] 

机构地区：[1]上海电机学院电子信息学院,上海200240

出　　处：《上海电机学院学报》2012年第6期395-399,共5页Journal of Shanghai Dianji University

基　　金：国家自然科学基金青年基金项目资助(61201258);上海高校选拔培养优秀青年教师专项基金项目资助(sdj10004);上海电机学院重点扶持学科资助(10xkf01)

摘　　要：结合了传统的协商算法和纠错码,提出了一种离散变量的量子密钥协商算法。该算法在相同的划分区间内对冗余部分进行进一步奇偶校验比较,从而提高了比特纠错能力,解决了传统协商算法效率低、纠错编码方法中冗余与纠错能力之间的矛盾,提高了量子密钥分发速率,适用于长距离量子密钥分发。By combining the traditional negotiation algorithm and error correcting codes, this paper presents a discrete variables quantum key agreement algorithm. The algorithm performs parity comparison in the division of interval within the same redundant part to improve the error correction performance and solve the problem of low efficiency. The contradiction between redun- dancy and error correction capability is also solved. The algorithm improves the quantum key dis- tribution rate and is suitable for long-distance key distribution.

关 键 词：量子密钥分发 密钥协商 WINNOW算法 纠错码 

分 类 号：TN918.1[电子电信—通信与信息系统]