A New Scheme to Secure Group Communication in Application-Level Multicast Networks
Keywords:
: IP Multicast, Application-Level Multicast Networks, Data Privacy, Key Management, Network Overhead.Abstract
IP Multicast technology appeared when the use of the Internet increased dramatically, so that the one-way transmission technology became ineffective in that. With this rapid growth in the use of the Internet, the need for expansion in its applications increased to include TV via the Internet, distance education, video conferencing and many other applications that need a great bandwidth.
In reality, multicasting technology suffer from many challenges that prevented its spread, including commercial and security. Therefore, a new technology has been proposed called application-level multicast networks that rely on the idea of building an overlay tree from end users as a pillar to add and publish new network services, or to provide a special topology for routing that is not available in the basic physical network. The goal is to facilitate the management of its groups and regulate the relationships between members of these groups, and then achieving security becomes easier than it is in multicast. Since achieving information confidentiality is a major challenge, therefore, a lot of research has been directed towards this topic, and it relied mainly on encryption keys, so the topic focuses on managing these keys and studying their impact on network overhead.
This research aims to suggest a new scheme to manage encryption keys in application-level multicast and to compare them with all existed schemes in these networks. Simulation results demonstrated the effectiveness of the new method by examining its effect on network overhead and on the number of data encryption / decryption operations.
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