Key recommendation for key agreement in public safety mesh networks

With enhanced functionalities and capabilities, wireless mesh networks are used for emergency services to improve the efficiency of public safety communication to prevent or respond to incidents that harm or endanger persons or property. This special field communication brings new security challenges. In this paper, we propose a key agreement scheme special for public safety mesh networks based on station-to-station protocol and extend the scheme to the key agreement with voting receiver using directed signature which can be verified only by the signature receiver. Also we import the expectancy-value theory in cognitive psychology to the analysis of key authentication. The results of analysis show that our schemes can provide resistance to unknown key-share attacks by little computational cost in comparison to the station-to-station protocol.