Key Management Protocol Based on Finely Granular Multi-level Security Method in Wireless Networks

Wireless networks with the multi-level secure group communication suit unmanned aircrafts. Based on the different security domain of wireless environments, an efficient finely granular multi-level security solution of wireless Mesh network is proposed, which consists of a three-party security information exchange protocol for the data transmission between nodes in the wireless network and an ID-based encryption scheme for the secure session keys of a node, which supports the combination of the decryption process and the finely granular multi-level secure policies in AS. Finally, we show that the session key achieves the security characters of unforgeability, confidentiality and non-repudiation, and the new protocol provides a secure, flexible and efficient method of key management in wireless dynamic networking.