34 results about "Ad hoc routing" patented technology

The invention provides a wireless ad hoc network routing protocol security method and system for an unmanned cluster, and the method comprises the steps: a sender node in a wireless ad hoc network determines a trust anchor point message in a routing message based on a working mechanism of a routing protocol in the wireless ad hoc network in combination with a communication overhead and trust origin principle; and the sender node performs security field extension on the header of the trust anchor point message by using a Hash algorithm and an HMAC verification method, constructs an enhanced routing message, and broadcasts the enhanced routing message to the wireless ad hoc network, according to the method, a key routing message structure is screened out through a working mechanism of a routing protocol to serve as a trust anchor point message, and only the head of the trust anchor point message is filled with double security expansion of a Hash algorithm and HMAC. The routing information source is authenticated with the lowest communication and calculation overhead, the attack of external malicious nodes is effectively resisted, and the communication security is ensured.