A novel dual-key management protocol based on a hierarchical multicast infrastructure in mobile internet

Jiannong Cao, L. Liao, G. Wang, Bin Xiao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


This paper describes a secure multicast infrastructure for large-scale group communications in Mobile Internet and proposes a key management protocol based on the infrastructure. The multicast communication domain is logically divided into several administrative areas with a key server associated with each area. All the key servers participate in a Public Key Infrastructure (PKI) as trusted entities known by the subgroup members. Therefore, it’s efficient to minimize the re-key overhead implemented in the mobile host tier. The simulation results show that the proposed protocol has better performance compared to the centralized protocols without PKI support. The numbers of the real re-key messages and the re-key events are reduced to approximately 30% and 65%, respectively.
Original languageEnglish
Title of host publicationLecture notes in computer science (including subseries Lecture notes in artificial intelligence and lecture notes in bioinformatics)
Number of pages9
ISBN (Electronic)9783540318682
ISBN (Print)9783540281023
Publication statusPublished - 2005
EventInternational Conference on Computer Networks and Mobile Computing [ICCNMC] -
Duration: 1 Jan 2005 → …


ConferenceInternational Conference on Computer Networks and Mobile Computing [ICCNMC]
Period1/01/05 → …

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

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