How to construct random functions
Journal of the ACM (JACM)
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
On Some Methods for Unconditionally Secure Key Distributionand Broadcast Encryption
Designs, Codes and Cryptography - Special issue: selected areas in cryptography I
Secure group communications using key graphs
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
New constructions for multicast re-keying schemes using perfect hash families
Proceedings of the 7th ACM conference on Computer and communications security
Simple and fault-tolerant key agreement for dynamic collaborative groups
Proceedings of the 7th ACM conference on Computer and communications security
Communications of the ACM
Key Management for Secure Multicast with Dynamic Controller
ACISP '00 Proceedings of the 5th Australasian Conference on Information Security and Privacy
Coding Constructions for Blacklisting Problems without Computational Assumptions
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Perfectly-Secure Key Distribution for Dynamic Conferences
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
A Quick Group Key Distribution Scheme with "Entity Revocation"
ASIACRYPT '99 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Efficient communication-storage tradeoffs for multicast encryption
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
A Secure Re-keying Scheme with Key Recovery Property
ACISP '02 Proceedings of the 7th Australian Conference on Information Security and Privacy
Key management for multicast fingerprinting
ICISS'05 Proceedings of the First international conference on Information Systems Security
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Multicast communication is the main mode of communication for a wide range of Internet services such as video broadcasting and multi-party teleconferencing where there are multiple recipients. A secure multicast system allows a group initiator (or a centre) to send message over a multicast channel to a dynamically changing group of users. The main challenge in secure multicasting is efficient group key management. We propose new schemes for user revocation that can be used to establish a common key among subgroups of users. The schemes can be used with static or dynamic group initiator and allow temporary and permanent revocation of users. We also give a method of adding authentication to the proposed schemes. We prove security and compare efficiency of the new schemes.