Patel Dhaval Dhirubhai, Singh Kashkumar Nirmalsingh
Abstract: We address the problem of selective attacks in wireless networks. In these attacks, the opponent selectively targets specific packets of high importance by exploiting his knowledge on the implementation details of network protocols at various layers of the protocol stack. We illustrate illustrating various selective attacks against the TCP protocol. We show that selective attacks can be launched by performing real-time packet classification at the physical layer. To mitigate these attacks, we develop three schemes that Avoid real-time packet classification by combining cryptographic primitives with physical-layer attributes. We analyze the security of our methods and evaluate their computational and communication overhead.
Keywords: Wireless Network, Packet Classification, Selective Attacks, Time-Lock Puzzle, Cryptography