A localized authentication, authorization, and accounting (AAA) protocol for mobile hotspots
A localized authentication, authorization, and accounting (AAA) protocol for mobile hotspots
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发表时间：
2006-01
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通讯作者：
Sungmin Baek;Sangheon Pack;Taekyoung Kwon;Yanghee Choi
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作者：
Sungmin Baek;Sangheon Pack;Taekyoung Kwon;Yanghee Choi
移动热点，即移动网络（例如车辆区域网络（VAN）和个人区域网络（PAN））中的互联网接达服务，带来了新的挑战性问题。即使网络移动性（NEMO）基本支持协议已经被IETF （Internet Engineering Task Force）标准化为移动性解决方案，但据我们所知，作为公共移动热点核心技术的AAA （authentication, authorization, and accounting）协议领域还没有进行过研究。在本文中，我们提出了一种本地化的AAA协议，以保持移动透明度作为NEMO基本支持协议，并降低AAA程序的成本。提出的AAA协议除了提供相互认证之外，还可以防止重放攻击、中间人攻击和密钥暴露等各种威胁。此外，我们还建立了一个评估AAA信令成本的分析模型。数值结果表明，所提出的AAA协议是一种适用于不同移动热点下AAA业务的解决方案。
Mobile hotspots, i.e. Internet access services in moving networks (e.g. vehicular area networks (VAN) and personal area networks (PAN)) bring about new challenging issues. Even if the network mobility (NEMO) basic support protocol has been standardized as a mobility solution by the Internet Engineering Task Force (IETF), to the best of our knowledge, no studies have been conducted in the area of authentication, authorization, and accounting (AAA) protocol, which is a core technology for public mobile hotspots. In this paper, we propose a localized AAA protocol to retain the mobility transparency as the NEMO basic support protocol and to reduce the cost of the AAA procedure. In addition to providing mutual authentication, the proposed AAA protocol prevents various threats such as replay attack, man in the middle attack, and key exposure. Also, we develop an analytical model to evalutate the AAA signaling cost. Numerical results reveal that the proposed AAA protocol is a suitable solution for AAA services in different mobile hotspots.