基于哈希函数的正弦投影身份认证方案  

Sinusoidal Projection Identity Authentication Scheme Based on Hash Function

作　　者：隆笑[1] 王景成[1] 赵广磊[1] 胡霆[1] 张震玮[2] 何军[2] 于长健[2] 

机构地区：[1]上海交通大学自动化系系统控制与信息处理教育部重点实验室,上海200240 [2]中兴通讯股份有限公司重庆研究所,重庆400060

出　　处：《计算机工程》2012年第9期125-126,130,共3页Computer Engineering

基　　金：教育部新世纪人才计划基金资助项目(NCET-08-0359);上海市青年科技启明星跟踪计划基金资助项目(11QH1401300);中兴通讯基金资助项目

摘　　要：正弦函数具有多个自变量对应于单个变量值的多映射特性,为此,在单向散列函数SHA-1的基础上,设计一种适用于无线传感器网络的轻量级身份认证方案。该方案将平台发送的随机数及自身密钥进行哈希变换,并组合成取值范围较广的正弦函数变量进行正弦投影,由此获得一组取值简单的映射值,完成身份认证要素的变换运算。在MICAz无线节点上进行实验,结果证明该方案在提高SHA-1安全性、抵抗传统攻击的基础上,具有存储小、能耗低的特点。This paper designs an identity authentication scheme for Wireless Sensor Network（WSN） based on SHA-1 function. By using the feature of multi-mapping, it is widely used in terminal node of WSN which has limited resources. The hash operation is done on the random number sent by the platform and the terminal node＇s key respectively, the results are integrated to be sinusoidal function variable which has larger value range, the variable is operated by sinusoidal projection, and a set of simpler projection values are obtained. Experiments on MICAz demonstrate that the scheme not only can improve the security of SHA-1, avoid traditional attack, but also can achieve better performance such as less memory space and energy.

关 键 词：正弦投影 哈希函数 身份认证 无线传感器网络 SHA-1算法 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]