High Performance Group Key Management

Current market analysis indicates that the most challenging issue in IPTVrelates to content security. To achieve high access control a sophisticatedgroup key management is required. This key must be updated and distributedeach time a new member joins the group or a current one leaves it. Becauseof its dependency on time-consuming cryptographic operations this rekeyingprocess can become a bottleneck in the Pay-TV system over Internet.This book tackles this problem by providing novel high-performance architecturescalled rekeying processors which act as coprocessors in the serverenvironment to accelerate group rekeying. The direct effect thereof is higherquality of service regarding joining members and higher access control concerningleaving ones. In addition a benchmarking framework is presented toevaluate the performance of different rekeying algorithms.The book is intended for Internet Pay-TV providers who plan to scale up theirservice without loss of access control or QoS. Designers of new rekeying solutionswill find a reliable benchmark framework to evaluate their algorithms.Non-specialists will gain an insight into a serious challenge in the emergingIPTV.