X-IDEA算法在手机图文信息安全传输中应用研究  

Study on Mobile Communication Image-Text Security Transport Based on X-IDEA Algorithm

作　　者：张毅[1] 肖四友[1] 

机构地区：[1]浙江万里学院智能控制研究所,浙江宁波315100

出　　处：《计算机技术与发展》2012年第4期250-252,F0003,共4页Computer Technology and Development

基　　金：国家"核;高;基"专项项目(2009ZX01039-001-002-004);浙江省教育科研计划项目(Y201018543)

摘　　要：随着移动通信系统技术的发展,信息传输形式也逐渐多样化,信息传输的安全性也日显重要。针对手机的硬件性能特点,设计了基于IDEA算法改进的X-IDEA算法应用于手机图文信息安全传输,较好地解决了IDEA算法的弱密钥等问题,X-IDEA算法的加密过程也使得其混淆性与扩散性较IDEA算法更强。根据移动通信系统的特征,提出了一种基于身份的密钥管理方法,该方法可使通信双方安全地获得密钥且计算量和通信量较小。实验证明了X-IDEA算法应用于手机图文安全传输的高效性和安全性。Along with the development of mobile communication technology,information transmission form becomes diversification,the safety of information transmission is more important.According to the performance characteristics of mobile communications terminal hardware,design improved X-IDEA algorithm based on IDEA algorithm and applied to the mobile phone information security transmission,solve the key IDEA algorithm problems such as weak key and so on.Also its resistance and diffusivity of algorithmic X-IDEA encrypt process is stronger than IDEA algorithm.According to the characteristics of mobile communication system,put forward a kind of key management method based on identity,this method can make the communications get the key safely and smaller amount of computation and communication.The experiment has testified the X-IDEA algorithm high-effect and security applied to mobile communication image-text security transport.

关 键 词：安全传输 IDEA算法 X-IDEA算法 密钥管理 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]