Key-update distribution in secure group communication

2010 ◽  
Vol 33 (6) ◽  
pp. 689-705 ◽  
Author(s):  
Sandeep S. Kulkarni ◽  
Bezawada Bruhadeshwar
Keyword(s):  
Group Communication ◽  
Secure Group Communication ◽  
Key Update

scholarly journals Analysis and Improvement of Key Distribution Scheme for Secure Group Communication

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Jia Ning Luo ◽  
Ming Hour Yang
Keyword(s):  
Group Communication ◽  
Encryption Algorithm ◽  
Forward Secrecy ◽  
Secure Group Communication ◽  
Distribution Scheme ◽  
Key Update ◽  
Malicious Insiders ◽  
And Performance ◽  
Ciphertext Policy ◽  
Group Member

In a secure group communication, messages between a group coordinator and members are protected by session keys. If a group’s membership changes, the session keys should be updated to insure forward secrecy and backward secrecy. Zhou and Huang proposed a key-updated scheme based on ciphertext-policy attribute encryption algorithm to improve the security of key-update mechanism, but their scheme is vulnerable: a malicious group member may send forged key-update messages to control the group. In this paper, we analyze the vulnerability in Zhou and Huang’s scheme and propose an enhanced scheme. In our scheme, only the group initiator can update group keys and the verification of key-update mechanism is improved to prevent malicious insiders from controlling the group. We also give a security and performance analysis of our scheme.

End-to-end secure group communication for the Internet of Things

2021 ◽  
Vol 58 ◽  
pp. 102772
Author(s):  
André Lizardo ◽  
Raul Barbosa ◽  
Samuel Neves ◽  
Jaime Correia ◽  
Filipe Araujo
Keyword(s):  
Internet Of Things ◽  
Group Communication ◽  
The Internet ◽  
Secure Group Communication ◽  
End To End ◽  
The Internet Of Things

A Novel Trust Model for Secure Group Communication in Distributed Computing

2021 ◽  
pp. 2231-2245
Author(s):  
Naresh Ramu ◽  
Vijayakumar Pandi ◽  
Jegatha Deborah Lazarus ◽  
Sivakumar Radhakrishnan
Keyword(s):  
Distributed Computing ◽  
Group Communication ◽  
Trust Model ◽  
Distributed Networks ◽  
Packet Delivery Ratio ◽  
Delivery Ratio ◽  
Secure Group Communication ◽  
Packet Delivery ◽  
The Past ◽  
Dynamic Group

Distributed networks are networks in which each node can act as a server or client and hence any node can provide service to any other node. In such a scenario, establishing a trust model between the service providing user and the service utilizing user is a challenging task. At present, only a few approaches are available in the past literature to provide this facility. Moreover, the existing approaches do not provide high trust accuracy. Therefore,a novel efficient trust model has been proposed in this article to support the secure dynamic group communication in distributed networks. The main advantage of the proposed work is that it provides higher trust accuracy. Moreover, the proposed work takes less memory for maintaining the trust values and increases the packet delivery ratio in comparison with other existing works which are in the literature.

Load Balancing Aware Multiparty Secure Group Communication for Online Services in Wireless Mesh Networks

2011 ◽  
Vol 1 (3) ◽  
pp. 15-29
Author(s):  
Neeraj Kumar
Keyword(s):  
Load Balancing ◽  
Wireless Mesh Networks ◽  
Secure Communication ◽  
Mesh Networks ◽  
Group Communication ◽  
Handheld Devices ◽  
Online Services ◽  
Efficient Manner ◽  
Secure Group Communication ◽  
Wireless Mesh

The internet offers services for users which can be accessed in a collaborative shared manner. Users control these services, such as online gaming and social networking sites, with handheld devices. Wireless mesh networks (WMNs) are an emerging technology that can provide these services in an efficient manner. Because services are used by many users simultaneously, security is a paramount concern. Although many security solutions exist, they are not sufficient. None have considered the concept of load balancing with secure communication for online services. In this paper, a load aware multiparty secure group communication for online services in WMNs is proposed. During the registration process of a new client in the network, the Load Balancing Index (LBI) is checked by the router before issuing a certificate/key. The certificate is issued only if the value of LBI is less than a predefined threshold. The authors evaluate the proposed solution against the existing schemes with respect to metrics like storage and computation overhead, packet delivery fraction (PDF), and throughput. The results show that the proposed scheme is better with respect to these metrics.

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