This book constitutes the proceedings of the 11th International Conference on Wireless Algorithms, Systems, and Applications, WASA 2016, held in Bozeman, MT, USA, in August 2016.The 50 full papers and 9 invited papers presented werde carefully reviewed and selected from 148 submissions. WASA is designed to be a forum for theoreticians, system and application designers, protocol developers and practitioners to discuss and express their views on the current trends, challenges, and state-of-the-art solutions related to various issues in wireless networks. Topics of interests include, but not limited to, effective and efficient state-of-the-art algorithm design and analysis, reliable and secure system development and implementations, experimental study and testbed validation, and new application exploration in wireless networks.

Multicasting is increasingly used as an efficient communication mechanism for group-oriented applications such as video conferencing, interactive group games, TV over Internet and broadcasting stock quotes. Nevertheless, the lack of security in the multicast paradigm obstructs the large scale deployment of such multi-party applications that have a large place in the information technology market. In this book we deal with the two keystone security issues of any secure multicast architecture: data origin authentication and confidentiality. For each service, we present a detailed analysis of the problem. Then, we present protocols and architectures that provide those security services and analyze their advantages and limitations. Finally, we discuss some new ideas and solutions dealing specifically with large scale and highly dynamic group communications. The analysis should help shed some light on security issues and solutions in multicast- based applications and services, and should be especially useful to professionals in group communication security, or anyone else who may be considering utilizing or deploying multicast-based communication solutions.