一种基于混沌的敏感数据加密算法  

An Encryption Algorithm of Sensitive Data Based on Chaos

作　　者：司德成 王光义[1] 王祥[1] 丘嵘[2] SI Decheng;WANG Guangyi;WANG Xiang;QIU Rong(Scholl of Electronic Infrrmation,Hangzhou Dianzi University,HangzhouZhejiang 310018,China;Guangdong Institute ofScienceand Technology,GuangzhouGuangdong 510640,China)

机构地区：[1]杭州电子科技大学现代电路与智能信息研究所,浙江杭州310018 [2]广东科学技术职业学院,广东广州510640

出　　处：《杭州电子科技大学学报（自然科学版）》2018年第4期1-5,10,共6页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金资助项目(61771176;61281230357);浙江省自然科学基金重点资助项目(LZ12F01001)

摘　　要：对于一条给定的数据,并非所有的数据都属于敏感信息。采取不加区分的完整加密对数据进行保护会导致不必要的资源浪费。为此,提出了一种敏感数据的加密算法,主要包括明文敏感数据提取、敏感数据混沌加密和密文回放替换敏感明文。为了提高敏感数据混沌加密的安全性,改进了传统的Henon映射,提高了其Lyapunov指数,拓宽了其密钥空间。测试结果表明,算法具有较高的密钥敏感性,能精准提取和放回敏感数据,具有较高的安全性和灵活性。Not all data belongs to sensitive information for a given piece of data.Usually complete encryption without distinction will be taken to protect sensitive data,which will lead to unnecessary waste of resources.In this paper,we proposed an encryption algorithm for sensitive data which includes three parts：plaintext sensitive data extraction,sensitive data chaotic encryption and ciphertext playback replaces sensitive plaintext.In order to improve the security of chaotic encryption of sensitive data,we modified the traditional Henon map,improved the Lyapunov exponent and broadened the key space.Experiment results show the sensitive data encryption algorithm has a very high key sensitivity,which can achieve accurate extraction and return sensitive data,and has high security and flexibility.

关 键 词：混沌 敏感数据 加密 

分 类 号：TN401[电子电信—微电子学与固体电子学]