基于硬件支持的可调加密实现方案  

Tweakable Enciphering Implementation Scheme Based on Hardware Support

作　　者：赵福祥[1] 

机构地区：[1]西安外事学院工学院,西安710077

出　　处：《计算机工程》2015年第10期144-147,154,共5页Computer Engineering

基　　金：陕西省教育厅专项基金资助项目(2013JK1146);陕西省自然科学基金资助项目(2014JM8323)

摘　　要：针对可调加密模式在实际应用中较难生成动态因子和管理密钥的问题,采用复合MPSoC平台硬件支持的方法,应用混沌密码、动态组密钥与硬件密钥防护等技术,提出一种改进的可调加密方案。通过增加小规模硬件部件以换取可调因子与加密的并行计算,支持受资源限制嵌入式设备应用,实现动态密钥管理。实验结果表明,该方法通过并行计算可缩短系统的整体运行时间,提高系统整体效率。To solve the problem of hard to generate dynamic factor and manage key in practical applications of the enciphering mode,a tweakable enciphering scheme is presented based on hardware support by using hybrid MPSoC implementation and chaotic code and dynamic key and hardware key protect technologies.Parallel computations between acquiring the tweakable factor and executing data encryption are introduced by adding small scale hardware and the overall efficiency of the system is improved.Techniques of resource-constrained application and dynamic key management are applied in the scheme.Experimental results show that the scheme can reduce the run time of system and improve the overall efficiency.

关 键 词：可调加密模式 嵌入式安全 混沌映射 硬件支持 混沌密码 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]