MAC based Approaches for Multicast Source Authentication

Abstract

Due to increased use of internet for novel types of group communication and bandwidth constraints an urgent need of simultaneous transmission of digital data arises. The applications of multicasting involve TV over internet, videoconferencing, news feeds, stock quotes, online video games and software updates. Some of these applications follow one to many models while others use many to many communications. But success of these applications depends on the factor that how secure they are. Each application has its own security requirements. Many applications require authenticating the source of received traffic to verify that it is originated from the valid member. Till date a large number of protocols have been proposed to support source authentication in multicasting. But each protocol has its advantages and disadvantages. Existing literature classify these protocols into two categories: MAC based approaches and Hash based approaches. This paper give a brief review of MAC based protocols to verify the authenticity of the sender along with their performance comparison based on security level, vulnerability to collusion,Laency at the source and receiver end ,tolerance to packet loss ,Time synchronization requirement and computation overhead parameters.

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“…MACs are extensively used in a variety of security protocols and applications, like network communication, secure data storage, banking applications, and validation techniques. They offer a reliable way to confirm the authenticity and integrity of data, thereby establishing themselves as an element of secure communication [ 55 , 56 ].…”