Secure group communications using key graphs
IEEE/ACM Transactions on Networking (TON)
Intercepting mobile communications: the insecurity of 802.11
Proceedings of the 7th annual international conference on Mobile computing and networking
Adaptive Video Multicast over the Internet
IEEE MultiMedia
ELK, a New Protocol for Efficient Large-Group Key Distribution
SP '01 Proceedings of the 2001 IEEE Symposium on Security and Privacy
A survey of key management for secure group communication
ACM Computing Surveys (CSUR)
A key embedded video codec for secure video multicast
CMS'05 Proceedings of the 9th IFIP TC-6 TC-11 international conference on Communications and Multimedia Security
A data embedded video coding scheme for error-prone channels
IEEE Transactions on Multimedia
Key management and distribution for secure multimedia multicast
IEEE Transactions on Multimedia
The VersaKey framework: versatile group key management
IEEE Journal on Selected Areas in Communications
Scalable secure group communication over IP multicast
IEEE Journal on Selected Areas in Communications
The evolution of multicast: from the MBone to interdomain multicast to Internet2 deployment
IEEE Network: The Magazine of Global Internetworking
Key management approaches to offer data confidentiality for secure multicast
IEEE Network: The Magazine of Global Internetworking
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In secure video multicast systems, access control is a very important and challenging issue. A common practice is to encrypt the video content using a group key, shared only by legitimate clients. Since the clients can join and leave the multicast session frequently, the group key needs to be updated and delivered to the legitimate clients accordingly in order to provide forward/backward secrecy. Therefore, key management and distribution plays a crucial role in building a secure and scalable video multicast system. Conventional approaches usually use a dedicated secure channel independent of the video data channel, which is expensive and inefficient. In this paper, we propose a novel and scalable Media-dependent Key Management and Distribution (MKMD) solution that embeds key management messages in video data so as to save network bandwidth and enhance the security level, and most importantly, without sacrificing the quality of video content too much. We have built a prototype system of MKMD, and our extensive experimental results show that MKMD is a secure, scalable, reliable and efficient key management and distribution solution for video multicast system.