Sharing randomly-generated keys via alternative route in a threshold based path oriented network for robust security in MANETs

A Mobile Adhoc Network is a infrastructure-less and self configurable network of mobile devices which are connected without physical cable. A novel approach has been proposed, where the communication in a network works on set of random keys called KEY1=X+KEY0, KEY2=X+KEY1, KEY3=X+KEY2..KEYN=X+KEYN-1 to establish the connection between devices and to validate the packets. Since the validation is based on the keys i.e, KEY1=X+KEY0, KEY2=X+KEY1, KEY3=X+KEY2..KEYN=X+KEYN-1 which is delivered by the previous threshold/source node via an alternative path. This ensures that, there is a packet integrity. This technique can trigger a issue of keys length, therefore we can enforce the number of hops to be added for the key generation, after reaching a threshold limit, then keys generation starts from the beginning. Here all nodes in the network would generate a X-key and appends to the flowing/ongoing key. When a source node initiates communication towards a target node, the source node will send a packet to a target via a recognised path. The destination node and threshold node would be holding a expected key which is delivered from the alternative path, when a packet reaches to a destination/threshold node, the packet's key and key of target/threshold node is compared, if both keys are matched then accept the packet as genuine one else discard it or deny the communication. This MANET enforces two level of security validation, first one is, key checking at each threshold node, another is, ensuring key integrity via true node's path to validate the packet. © 2015 IEEE.