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Wireless spoofing attacks are easy to launch and can significantly impact the performance of networks. Although the identity of a node can be verified through cryptographic authentication, conventional security approaches are not always desirable because of their overhead requirements. In this paper, we propose to use location information, a physical property associated with each node, hard to falsify,...
A novel full-phase digital holographic encryption scheme with double random key masks, which are performed by electrically addressed liquid-crystal spatial light modulators for optical processing, is demonstrated. Phase-shifting digital holography is employed to generate the key holograms derived from the double key masks for implementing the encryption and decryption. The experimental results show...
Security and privacy are two major concerns in supporting roaming users across administrative domains. In current practices, a roaming user often uses encrypted tunnels, e.g., Virtual Private Networks (VPNs), to protect the secrecy and privacy of her communications. However, due to its encrypted nature, the traffic flowing through these tunnels cannot be examined and regulated by the foreign network's...
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