A secure and robust group key distribution and authentication protocol with efficient rekey mechanism for dynamic access control in secure group communications,International Journal of Communication Systems

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A secure and robust group key distribution and authentication protocol with efficient rekey mechanism for dynamic access control in secure group communications
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-07-22 , DOI: 10.1002/dac.4465
Vinod Kumar ₁ , Rajendra Kumar ₂ , Santosh K. Pandey ₃

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In today's Internet era, group communications have become more and more essential for many emerging applications. Given the openness of today's networks, efficient and secure distribution of common key is an essential issue for secure communications in the group. To maintain confidentiality during communication in the group, all authorized members require a common key called the group key in advance. This paper proposes a group key distribution and authentication protocol for dynamic access control in secure group communication using Chinese remainder theorem (CRT), which is highly secure and computationally efficient. The proposed protocol (1) has drastically reduced the computation complexity of group controller (GC) and members, (2) has provided intense security by means of an additional secret parameter used by GC and members, (3) has minimized storage and communication overheads, (4) has been decentralized for higher scalability so that it can efficiently handle large‐scale changes in the group membership, and (5) is suitable for many practical applications due to intense security along with low computation and storage overheads. Detailed security analysis proves that our protocol can guarantee the privacy and security requirements of group communications. Moreover, performance analysis also verifies the efficiency and effectiveness of the proposed protocol. The proposed protocol has been experimented on star topology‐based key distribution system and observed that the protocol significantly reduces the computation cost and minimizes the communication and storage overheads.

中文翻译：

具有有效密钥机制的安全，健壮的组密钥分发和身份验证协议，用于安全组通信中的动态访问控制

在当今的Internet时代，对于许多新兴应用程序来说，群组通信已变得越来越重要。鉴于当今网络的开放性，有效且安全地分配公共密钥是该组中安全通信的重要问题。为了在组中进行通信时保持机密性，所有授权成员都需要事先有一个称为组密钥的公共密钥。本文提出了一种利用中文余数定理（CRT）进行安全的群组通信中的动态访问控制的群组密钥分发和认证协议，该协议具有很高的安全性和计算效率。提议的协议（1）大大降低了组控制器（GC）和成员，（2）通过GC使用的其他秘密参数提供了高度的安全性和成员，（3）最大限度地减少了存储和通信开销，（4）已分散化以实现更高的可伸缩性，以便它可以有效地处理组成员资格的大规模更改，并且（5）由于强度高而适合许多实际应用安全性以及较低的计算和存储开销。详细的安全性分析证明，我们的协议可以保证群组通信的隐私和安全性要求。此外，性能分析还验证了所提出协议的效率和有效性。该协议已在基于星型拓扑的密钥分发系统上进行了实验，发现该协议大大降低了计算成本，并最大程度地减少了通信和存储开销。

更新日期：2020-07-22

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