一种基于自更新哈希链的双向认证签名方案  

Two-way Authentication Signature Scheme Based on Self-updating Hash Chains

作　　者：翁丽萍 施荣华[1] 王国才[1] 

机构地区：[1]中南大学,湖南长沙410075

出　　处：《现代电子技术》2010年第9期87-90,共4页Modern Electronics Technique

基　　金：国家自然科学基金项目(60773013);湖南省自然科学基金项目(07JJ5078)

摘　　要：目前,哈希链技术已被广泛地应用于信息安全领域中的实体认证和数据源认证,但是哈希链有限的长度限制了它的应用。为此,提出一种基于自更新哈希链的双向认证签名方案。新方案采用自更新哈希链技术进行认证签名,避免了传统公钥算法的复杂运算,并且实现了哈希链在认证过程中自动平滑更新,达到无限使用的目的,从而显著提高了执行速度。同时,结合双向认证机制,能够有效地抵抗重放攻击和中间人攻击,大大增强了新方案的安全性。Hash chains are widely used for entity authentication or data-origin authentication in the field of information safety.However,finite length of a Hash chain limits its implementation.A two-way authentication signature scheme based on self-updating Hash chains is proposed.To avoid the computing complexity of the traditional public key algorithm,the scheme adopts Hash function to perform the authentication signature and significantly improves the speed of execution.The scheme achieves the automatic and smooth self-updating of Hash chain during the authentication process,and realizes the purpose of infinite utilization.In combination with the two-way authentication mechanism,the scheme can effectively resist the attack of replay and go-between,and enhance the security of the scheme.

关 键 词：数字签名 哈希链 自更新 双向认证 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]