CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Iolus: a framework for scalable secure multicasting
SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Secure group communications using key graphs
IEEE/ACM Transactions on Networking (TON)
Perfectly-Secure Key Distribution for Dynamic Conferences
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Key Establishment in Large Dynamic Groups Using One-Way Function Trees
IEEE Transactions on Software Engineering
A survey of key management for secure group communication
ACM Computing Surveys (CSUR)
Secure Group Communication Using Robust Contributory Key Agreement
IEEE Transactions on Parallel and Distributed Systems
An Efficient Key Management Algorithm for Hierarchical Group Communication
SECURECOMM '05 Proceedings of the First International Conference on Security and Privacy for Emerging Areas in Communications Networks
Multi-layer key management for secure multimedia multicast communications
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1
Key management scheme for multi-layer secure group communication
COMSNETS'09 Proceedings of the First international conference on COMmunication Systems And NETworks
Key management scheme for multiple simultaneous secure group communication
IMSAA'09 Proceedings of the 3rd IEEE international conference on Internet multimedia services architecture and applications
The VersaKey framework: versatile group key management
IEEE Journal on Selected Areas in Communications
A survey of security issues in multicast communications
IEEE Network: The Magazine of Global Internetworking
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Many emerging applications are based on group communication model and many group communications like multimedia distribution and military applications require a security infrastructure that provides multiple levels of access control for group members. The group members are divided into a number of subgroups and placed at different privilege levels based on certain criteria. A member at higher level must be capable of accessing communication in its own level as well as its descendant lower levels but not vice versa. In this paper we propose a key management scheme for thismultilayer group communication. We achieve substantial reduction in storage and encryption cost compared to the scheme proposed by Dexter et al. We also address periodic group rekeying. Applications like scientific discussion and project management may lead to a scenario in which it is necessary to set up multiple secure groups simultaneously, and few members may be part of several secure groups. Managing group keys for simultaneous secure groups is critical. In this paper we propose a novel key management scheme for multiple simultaneous groups.