摘要
为了解决传统AES算法因种子密钥固定和密钥空间确定所导致的安全性降低的问题,将混沌序列加密和传统AES算法相结合,提出一种基于复合混沌序列的动态密钥AES加密算法并完成软件实现。该算法采用私钥构造加解密两端的同参Logistic和Tent双混沌系统,通过迭代与明文长度相关的次数产生交叉复合混沌序列,进而量化映射为AES分组的动态初始密钥进行AES加解密。安全性分析、统计检测和性能测试实验的结果表明,该算法具有安全性高、适应性强、运算速度快等优点,非常适用于跨平台无线数据安全传输等应用场合。
To solve the traditional AES（Advanced Encryption Standard）algorithm＇s security reduction problem caused by the unchanged seed key and fixed key space,combining with the chaotic sequence cipher and AES algorithm,this paper proposed a dynamic seed key AES encryption algorithm based on compound chaotic sequences and finished the software implementations.The algorithm uses the private key to construct the same-parameters＇ dual chaotic system at both ends of the encryption and decryption.The chaotic sequence is generated and cross-combined through two chaotic systems（logistic and tent）by a number of iterations that related to the plaintext length,and then mapped into the dynamic initial seed keys for the AES block cipher.Through the security analysis,statistical test and performance test,the analytical results demonstrate that the proposed algorithm has the advantages of high security,strong adaptability and fast operation speed,and it is very suitable for cross platform wireless secure data transmission applications.
出处
《计算机科学》
CSCD
北大核心
2017年第6期133-138,160,共7页
Computer Science
基金
四川省科技计划项目:面向国产第三代核电站的核级输配电系列开关设备关键技术研究及其产业化(2015GZ0028)
高铁安全保障关键技术研究(2016GZ0335)资助
