An Improved Packet Hiding Method for Preventing Selective Jamming Attacks in Wireless LAN
Bhoomi Patel, Anand Chauhan · International Journal For Science Technology And Engineering · 2015
To address the problem of jamming under an internal threat model and consider a sophisticated adversary who is aware of network secrets and the implementation details of network protocols at any layer within the network protocol stack. The adversary or jammer exploits his internal information for launching selective jamming attacks in which specific messages of high importance are targeted. For example, an attacker will target route-request/route-reply messages at the routing layer to stop route discovery, or target TCP acknowledgments in a TCP session to severely degrade the throughput of an end-to-end flow. The attacker may decrypt the first few bits of a packet for recovering useful packet identifiers such as packet type, source and destination address. After classification, the adversary should induce an enough number of bit errors in order that the packet can’t be recovered at the receiver. To show that selective jamming attacks can be launched by performing real time packet classification at the physical layer. To prevent these attacks develop a schemes that prevent real-time packet classification by combining cryptographic primitives with physical layer attributes.