A molecular cryptography model based on structures of DNA self-assembly  

作　　者：Jing Yang Jingjing Ma Shi Liu Cheng Zhang 

机构地区：[1]Beijing Key Laboratory of New Technology and System on Measuring and Control for Industrial Process,School of Control and Computer Engineering,North China Electric Power University [2]Key Laboratory of High Confidence Software Technologies,Ministry of Education,Institute of Software,School of Electronics Engineering and Computer Science,Peking University

出　　处：《Chinese Science Bulletin》2014年第11期1192-1198,共7页

基　　金：supported by the National Natural Science Foundation of China(61370099,61143003,61272161,61127005,61133010,and 61272246);the Beijing Excellent Talent Training Project(2013D009005000002);the Program of Introducing Talents of Discipline to Universities(B13009);the Program for Changjiang Scholars and Innovative Research Team in University(IRT0952);the Fundamental Research Funds for the Central University(13QN14)

摘　　要：With the progress of DNA computing, DNAbased cryptography becomes an emerging interdisciplinary research field. In this paper, we present a novel DNA cryptography that takes advantage of DNA self-assembled structure. Making use of the toehold strands recognition and strand displacement, the bit-wise exclusive-or(XOR)operation is carried out to fulfill the information encryption and decryption in the form of a one-time-pad. The security of this system mainly comes from the physical isolation and specificity of DNA molecules. The system is constructed by using complex DNA self-assembly, in which technique of fluorescent detection is utilized to implement the signal processing. In the proposed DNA cryptography,the XOR operation at each bit is carried out individually,thus the encryption and decryption process could be conducted in a massive, parallel way. This work may demonstrate that DNA cryptography has the great potential applications in the field of information security.With the progress of DNA computing, DNA- based cryptography becomes an emerging interdisciplinary research field. In this paper, we present a novel DNA cryptography that takes advantage of DNA self assembled structure. Making use of the toehold strands recognition and strand displacement, the bit-wise exclusive-or （XOR） operation is carried out to fulfill the information encryption and decryption in the form of a one-time-pad. The security of this system mainly comes from the physical isolation and specificity of DNA molecules. The system is con- structed by using complex DNA self-assembly, in which technique of fluorescent detection is utilized to implement the signal processing. In the proposed DNA cryptography, the XOR operation at each bit is carried out individually, thus the encryption and decryption process could be con- ducted in a massive, parallel way. This work may dem- onstrate that DNA cryptography has the great potential applications in the field of inRwmation security.

关 键 词：DNA计算 自组装结构 信息加密 分子模型 DNA密码 异或运算 DNA分子 物理隔离 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]