Secure Trust Metadata Management for Mobile Ad-Hoc Networks
A trust management framework is useful to ensure proper functioning of a Mobile Ad-hoc NETwork (MANET). Nodes in a MANET generally lack hardware support for tamper resistance. Thus, an adversary could compromise some nodes and program them to display malicious behavior. In order to address malicious behavior, trust metadata (i.e., structural data regarding the trustiness of nodes) could be created by nodes, based on their direct interaction with other nodes or by using an intrusion detection system to monitor the behavior of nodes in their radio range. Trust metadata created by individual nodes is required to be accessible to a network entity (e.g., the network administrator) for prompt decision making (e.g., revoking malicious nodes).