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远程匿名认证可以在保护远程终端隐私信息不泄露的同时,为网络交互提供一个可信的环境。但现有的认证协议存在安全性不强、效率低等问题。根据ELGamal签名算法,在原有直接匿名认证协议的基础上,提出一套新的远程匿名认证协议,并对协议的完备性、安全性、匿名性和效率等进行了证明与分析。结果表明,本文提出的基于ELGamal签名算法的远程匿名认证协议具备了完备性和匿名性,并具有更高的效率与更强的安全性。
Remote Anonymous Authentication can provide a trusted environment for network interaction while protecting the privacy information of remote terminals from being leaked. However, the existing authentication protocols are not secure and inefficient. According to the ELGamal signature algorithm, a new remote anonymous authentication protocol is proposed based on the original direct anonymous authentication protocol. The completeness, security, anonymity and efficiency of the protocol are also proved and analyzed. The results show that the proposed remote anonymous authentication protocol based on ELGamal signature algorithm possesses completeness and anonymity, and has higher efficiency and stronger security.