Security and Communication Networks

Research Article

[Retracted] HGKM: An Efficient Hybrid Group Key Management for Unmanned Autonomous Vehicles MBN in Wireless Network Environment

Table 2

Operational cost of leave action for the TKC in HGKM.
 The number of rekeying messages sent by TKCKeys encrypted by TKC
Member unit leaving2
Leader unit leavingSituation (i)2
Situation (ii)3
Situation (iii)3
: the highest of the key of operation unit; : the number of leader units in the group.