摘要
提出了一个可否认认证方案,基于Diffie-Hellman算法建立,采用哈西函数及对称密钥加密。本方案使得接收者能够辨别消息发送者的身份,但第三者不能辨别发送者的身份,满足可否认认证的要求,同时该方案可抵抗中间人攻击。将这一方案应用于农产品网上竞价系统,可保障竞价的公平安全。
A deniable authentication scheme is proposed in this paper. This scheme is based on Diffie - Hellman Algorithm, hash function and commom key encryption. IT can make the receiver assure the .source of a given message, but others cannot do that. At the same time, this scheme can resist Person - In - the Middle （PIM） attack. When applied to the farm products online auction, this .scheme can ensure the equality and the security.
