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Robust Multi-Factor Authentication for Fragile Communications

机译:脆弱通信的稳健多因素身份验证

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In large-scale systems, user authentication usually needs the assistance from a remote central authentication server via networks. The authentication service however could be slow or unavailable due to natural disasters or various cyber attacks on communication channels. This has raised serious concerns in systems which need robust authentication in emergency situations. The contribution of this paper is two-fold. In a slow connection situation, we present a secure generic multi-factor authentication protocol to speed up the whole authentication process. Compared with another generic protocol in the literature, the new proposal provides the same function with significant improvements in computation and communication. Another authentication mechanism, which we name stand-alone authentication, can authenticate users when the connection to the central server is down. We investigate several issues in stand-alone authentication and show how to add it on multi-factor authentication protocols in an efficient and generic way.
机译:在大型系统中,用户身份验证通常需要通过网络从远程中央身份验证服务器获得帮助。但是,由于自然灾害或通信渠道上的各种网络攻击,身份验证服务可能会变慢或无法使用。在紧急情况下需要鲁棒认证的系统中,这引起了严重的关注。本文的贡献是双重的。在连接速度较慢的情况下,我们提出了一种安全的通用多因素身份验证协议,以加快整个身份验证过程。与文献中的另一种通用协议相比,新提议提供了相同的功能,并且在计算和通信方面有了显着的改进。我们将另一种身份验证机制称为独立身份验证,该机制可以在与中央服务器的连接断开时对用户进行身份验证。我们研究了独立身份验证中的几个问题,并展示了如何以有效且通用的方式将其添加到多因素身份验证协议中。

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