We study the problem of broadcasting confidential information to a collection of n devices
while providing the ability to revoke an arbitrary subset of those devices (and tolerating …

In secure group communications, users of a group share a common group key. A key server
sends the group key to authorized new users as well as performs group rekeying for group …

We introduce and analyze a scalable rekeying scheme for implementing secure group
communications Internet protocol multicast. We show that our scheme incurs constant …

Security is an important concern in today's information age and particularly so in satellite
systems, where eavesdropping can be easily performed. This paper addresses efficient key …

We present the design and specification of a protocol for scalable and reliable group
rekeying together with performance evaluation results. The protocol is based upon the use …

This paper presents an efficient algorithm for the secure group key management of mobile
users. The most promising protocols to deal with group key management are those based …

Efficient key distribution is an important problem for secure group communications. The
communication and storage complexity of multicast key distribution problem has been …

Broadcast encryption (BE) schemes allow a sender to securely broadcast to any subset of
members but requires a trusted party to distribute decryption keys. Group key agreement …

In many network applications, including distant learning, audio webcasting, video streaming,
and online gaming, often a source has to send data to many receivers. IP multicasts and …

Multicasting is increasingly used as an efficient communication mechanism for group-
oriented applications in the Internet. In order to offer secrecy for multicast applications, the …