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Practical KGC-Free Polynomial-Based Multiple Group Keys Agreement for IoT Health Care Systems
Mathematical Problems in Engineering Pub Date : 2021-09-22 , DOI: 10.1155/2021/7703466
Qi Cheng 1 , Zhuo Zhao 2 , Chingfang Hsu 2 , Maoyuan Zhang 2 , Qing Yang 2 , Di Wu 2
Affiliation  

Although nowadays lots of group key agreement schemes have been presented, most of these protocols generate a secret key for a single group. However, in the IoT HCS, more and more communications are involved in multiple groups and users can join multiple groups to communicate at the same time. Therefore, applying the conventional public-key-based one-at-a-time group key establishment protocols has heavy computational cost or suffer from security vulnerabilities. At the same time, in an IoT HCS, a trusted KGC is usually not available and so more flexible self-organized multigroup keys generation will be desired by all group members. In order to address this issue, a practical scheme for efficient and flexible KGC-free polynomial-based multigroup key establishments for IoT HCS is proposed. The proposed protocol can generate multiple group keys for all group members at once, instead of generating one key each time for a single group; more importantly, there is no need for a trusted KGC in the process of group keys establishment and each user can join multiple groups at the same time using only one reserved share. Meanwhile, the security of the proposed protocol is discussed in detail. Finally, we compare this protocol with the latest related group key distribution protocols in performance analysis. The results show that this efficient and flexible KGC-free polynomial-based multiple group keys establishment protocol is more suitable for practical group key agreement in IoT HCS.

中文翻译:

用于物联网医疗保健系统的实用无 KGC 多项式多组密钥协议

虽然现在已经提出了许多组密钥协商方案,但这些协议中的大多数为单个组生成一个秘密密钥。然而,在物联网 HCS 中,越来越多的通信涉及到多个群组,用户可以同时加入多个群组进行通信。因此,应用传统的基于公钥的一次一个组密钥建立协议具有很高的计算成本或存在安全漏洞。同时,在物联网 HCS 中,通常没有受信任的 KGC,因此所有组成员都需要更灵活的自组织多组密钥生成。为了解决这个问题,提出了一种用于物联网 HCS 的高效灵活的基于无 KGC 多项式的多组密钥建立的实用方案。提议的协议可以一次为所有组成员生成多个组密钥,而不是每次为单个组生成一个密钥;更重要的是,在组密钥建立过程中不需要可信的KGC,每个用户只使用一个保留的共享就可以同时加入多个组。同时,详细讨论了所提出协议的安全性。最后,我们在性能分析中将该协议与最新的相关组密钥分发协议进行了比较。结果表明,这种高效灵活的基于无 KGC 多项式的多组密钥建立协议更适用于物联网 HCS 中的实际组密钥协商。组密钥建立过程中不需要可信的KGC,每个用户只使用一个保留的共享就可以同时加入多个组。同时,详细讨论了所提出协议的安全性。最后,我们在性能分析中将该协议与最新的相关组密钥分发协议进行了比较。结果表明,这种高效灵活的基于无 KGC 多项式的多组密钥建立协议更适用于物联网 HCS 中的实际组密钥协商。组密钥建立过程中不需要可信的KGC,每个用户只使用一个保留的共享就可以同时加入多个组。同时,详细讨论了所提出协议的安全性。最后,我们在性能分析中将该协议与最新的相关组密钥分发协议进行了比较。结果表明,这种高效灵活的基于无 KGC 多项式的多组密钥建立协议更适用于物联网 HCS 中的实际组密钥协商。
更新日期:2021-09-22
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