摘要： 提出了一种可否认的认证协议。该协议能够抵抗中间人攻击，在电子选举以及网上谈判等场合保证了公平性以及安全性。协议基于Diffie-Hellman算法，利用了Hash函数以及传统的密钥加密，实现简单。

关键词: 可否认认证, 加密, 中间人攻击

Abstract: A deniable authentication protocol is proposed in this paper. This protocol can resist person-in-the-middle(PIM) attack, assure the justice and security in electronic voting system and negotiation over Internet. This protocol is based on Diffie-Hellman algorithm, hash function and common key encryption are used, and it is easy to realize it.

中图分类号: 

• TP309