Dynamic rekeying in 3GPP multimedia broadcast/multicast service (MBMS)

Jeng Feng Weng*, Jyh-Cheng Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In multicast, it is important to update security keys when a user joins or leaves the multicast group. In this paper, we study how to reduce the cost to update the security keys in 3GPP MBMS. The problem is especially critical for MBMS because 3G is a large scale network with huge number of mobile users. We show that with dynamic rekeying, the cost can be reduced significantly.

Original languageEnglish
Article number5439341
Pages (from-to)288-290
Number of pages3
JournalIEEE Communications Letters
Issue number4
StatePublished - 1 Apr 2010


  • Key management
  • Multicast
  • Security
  • Wireless networks

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