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An anonymous roaming authentication scheme in global mobility networks

机译:全球移动网络中的匿名漫游认证方案

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In Global Mobility Networks (GLOMONET), an anonymous authentication scheme is an essential way to improve the security of roaming services. Recently, He et al. proposed an improved anonymous roaming authentication scheme based on Xie et al.'s research in GLOMONET. In this paper, authors identify that the scheme fails to achieve anonymity. Furthermore, we also find that the scheme still has some deficiencies, which need strict time synchronization and have high computational cost. We propose an improved anonymity scheme to eliminate these weaknesses. Firstly, we use a random temporary identity to enhance anonymity. Second, timestamps and nonces are used at the same time to avoid the problem of time synchronization. Finally, one-way hash functions are used to replace the exponentiation for decreasing the total computation time. The performance analysis illustrates that the authentication time of the proposed scheme is 50% less than He et al.'s scheme.
机译:在全球移动网络(GLOMONET)中,匿名身份验证方案是提高漫游服务安全性的基本方法。最近,何等人。基于Xie等人在GLOMONET中的研究,提出了一种改进的匿名漫游身份验证方案。在本文中,作者认为该方案无法实现匿名性。此外,我们还发现该方案仍然存在一些缺陷,需要严格的时间同步并且计算成本较高。我们提出了一种改进的匿名方案,以消除这些弱点。首先,我们使用随机的临时身份来增强匿名性。第二,同时使用时间戳和随机数以避免时间同步问题。最后,使用单向哈希函数代替指数以减少总计算时间。性能分析表明,该方案的认证时间比He等人的方案少50%。

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