一个基于身份的非交互可否认源认证协议  

ID-based non-interactive deniable authentication protocol

作　　者：李志敏[1] 徐馨[1] 李存华[1] 

机构地区：[1]淮海工学院计算机工程学院,江苏连云港222005

出　　处：《计算机应用》2012年第2期465-467,471,共4页journal of Computer Applications

基　　金：江苏省自然科学基金资助项目(BK20082140);淮海工学院引进人才科研启动基金资助项目(KQ10121);淮海工学院校内课题(KX10530)

摘　　要：可否认源认证方案能够让接收方确认消息发送方的身份,但不能向第三方证明发送方的身份,在电子商务和电子政务中有广泛的应用。在假定计算Diffie-Hellman问题是困难的前提下,利用双线性对,构造了一个基于身份的非交互可否认源认证协议,并在随机预言模型下证明了方案的安全性。分析结果表明新提出的协议可以抵抗伪造攻击、假冒攻击、中间人攻击以及重放攻击等。该协议基于身份,不需要证书,可简化密钥管理;其通信和计算效率较高,实现简单,可用于计算能力受限的设备。Non-interactive deniable authentication protocol can enable the receiver to identify the source of a received message and prevent a third party from identifying the source of the message, which is very suitable to be used in E-commerce and E-government. Based on computational Diffie-Hellman assumption, using bilinear pairing, a new identity-based deniable authentication protocol was constructed. The security of the scheme was proved under the random oracle model. The analytical results show that the new proposed protocol can resist the forgery attack, spoofing attack, middle attack and replay attack. This protocol is identity-based, which means it needs no certificate and has a simple key management. On the other hand, it is efficient in communications and computation, and its implementation is simple, so that it could be implemented in mobile devices with low power and small processor.

关 键 词：认证协议 可否认源认证 非交互式协议 可证安全 基于身份 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]