An efficient group key establishment in location-aided mobile ad hoc networks
PE-WASUN '05 Proceedings of the 2nd ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
TrustStream: a novel secure and scalable media streaming architecture
Proceedings of the 13th annual ACM international conference on Multimedia
Hierarchy-based key management for secure group communications in mobile ad hoc networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
A hierarchical key management scheme for secure group communications in mobile ad hoc networks
Journal of Systems and Software
Offering data confidentiality for multimedia overlay multicast: Design and analysis
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Design of secure group key management scheme for multicast networks using number theory
COMSNETS'09 Proceedings of the First international conference on COMmunication Systems And NETworks
Keeping group communications private: An up-to-date review on centralized secure multicast
CISIS'11 Proceedings of the 4th international conference on Computational intelligence in security for information systems
Key management for secure overlay multicast
CISC'05 Proceedings of the First SKLOIS conference on Information Security and Cryptology
A novel key management and distribution solution for secure video multicast
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Topology-Aware key management scheme for secure overlay multicast
ICOIN'06 Proceedings of the 2006 international conference on Information Networking: advances in Data Communications and Wireless Networks
Horus: fine-grained encryption-based security for high performance petascale storage
Proceedings of the sixth workshop on Parallel Data Storage
Journal of Computational and Applied Mathematics
Hierarchical approaches for multicast based on Euclid's algorithm
The Journal of Supercomputing
Horus: fine-grained encryption-based security for large-scale storage
FAST'13 Proceedings of the 11th USENIX conference on File and Storage Technologies
Secure group re-keying using key inverses
Journal of High Speed Networks
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Multicasting is an efficient way to deliver data to a large group of users in applications such as Internet stock quotes, audio and music delivery, file and video distribution, etc. Many of these applications require the security feature of data confidentiality, which is not readily offered by the "open" nature of multicast. In order to offer such confidentiality, the encryption and decryption keys must be constantly changed upon a membership change. In this article, after discussing some performance criteria to offer secure multicast, we present a number of the proposed key management schemes for data confidentiality. We categorize these schemes into four groups: key tree-based approaches, contributory key agreement schemes supported by the Diffie-Hellman algorithm, computational number theoretic approaches, and secure multicast framework approaches. Through examples, we describe the operation of the schemes and compare their performances.