International Journal of Information and Electronics Engineering
Due to unreliable wireless media and lack of infrastructure in MANETs, providing certificate path is a big challenge and also faces a big security problem. MANETs are dynamic Peer-To-Peer (P2P) PKIs and certification path can be built in case any part of the infrastructure that is temporarily not reachable. Hence efficient path discovery is very important. Path discovery is difficult since trust relationship is bidirectional. Certification paths are easy to find in case of hierarchical PKI since there is only one path among two entities.