Security and Communication Networks

Research Article

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

Table 10

The key storage cost of OFT, HGKM, and LKH.
Group key managementTKCGroup user
LeaderMember/leadership candidate
HGKM
LKH2s − 1h + 2
OFT2s − 1h + 2
: the size of operation unit in HGKM. : the size of group. : the highest key structure of the operation element in HGKM. : the highest key tree in LKH and OFT.