Abstract
Mobile communication has become more pervasive and it is considered as one of main concerns of IP telephony, video conferencing, multi-user games and etc. in mobile environments. These applications require secure group communication between a multitude of mobile devices owned by group members. Most of the published group key agreement protocols are based on a model which consists of a stationary base station and a cluster of mobile devices. In this paper, we assume a more realistic scenario in which secret group key is established between several base stations and mobile devices in different cells. We present new group key protocol among mobile devices in different cells and analyze its security.
Published Version
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