基于非齐次线性方程组的认证协议的研究

认证技术是信息安全理论与技术的一个重要方面.认证技术主要包括用户认证和信息认证2个方面.前者用于鉴别用户身份,后者用于保证信息的真实来源.本文基于线性代数的方程组的解的理论建立了一种身份认证协议和一种消息认证协议.通过安全性分析结果表明这个新的身份认证协议能够保证用户身份的正确认证,新的信息认证协议能够保证数据的机密性、完整性,同时能够防止重传攻击认证信息来源.

Study of Authentication Protocols Based on Linear Equations

Authentication is an important aspect in the field of information security theory and technology which includes identity authentication and information authentication. The former is used to identify the user's identity and the latter to verify the true source of information. This article brings forward two kinds of protocols: identity authentication and information authentication, which is based on the theory of linear equations' solution. In the end, we conclude that the new identity authentication protocol can make the user's identity certain and the new information authentication protocol can assure the information of its confidentiality and integrity by analyzing the security of two protocols. At the same time, the latter protocol can avoid the playback attack the authentication information source.