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Hydra: A Decentralised Group Key Management

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Published
Publication date2002
Host publicationEleventh IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE'02)
Place of PublicationWashington, DC, USA
PublisherIEEE Computer Society
Pages62-67
Number of pages6
ISBN (print)0-7695-1748-X
<mark>Original language</mark>English

Abstract

Hydra is a scaleable decentralised architecture to create and distribute symmetric cryptographic keys to large multicast-based groups. The group is divided into a number of TTL-scoped regions in order to achieve flexible and efficient key management, particularly in face of group membership changes. Hydra does not employ a manager for subgroup managers, and hence, it is not vulnerable to failures of single entities.