Efficient and Secured Multicasting in Ad Hoc Network

Abstract

An Ad hoc Network consists of a set of autonomous mobile nodes that communicates via multi-hop wireless communication in an infrastructure-less environment. In such a network, group communication takes place by implementing a multicasting technique. This multicasting technique is intended to provide energy and bandwidth e ciency with secure content delivery. The project concentrates on identifying such an e cient multicasting technique. On the basis of comparison of multicasting protocols, Protocol for Uni ed Multicasting through Announcement (PUMA) has been chosen for initial implementation. PUMA does not rely on any unicast routing approach. It delivers data at a higher e ciency, while also provides a tight bound for control overhead in a wide range of network scenarios. PUMA also provides high throughput and better End-to-End delay. Secure communication is a major concern in PUMA, especially because multicasting protocols are applied in areas such as audio/video conferencing, corporate communications, collaborative and groupware applications. For secure communication, the performance of RSA and ElGamal was examined; Findings say that RSA's execution time is comparatively less. To guarantee the data integrity in ad hoc networks, SHA-1 and MD5 are analyzed with RSA. Finally, the integration of PUMA has been done with RSA and SHA1 to guarantee more security.