With the globalization of integrated circuit (IC) design flow and the outsourcing of chip fabrication service, intellectual property (IP) piracy and malicious logic insertion become main security threats to tamper hardware infrastructures. While most of the protection methods are dedicated for digital circuits, we try to protect radio-frequency (RF) designs which are more likely to be IP piracy...

In this paper, we consider the problem of digital watermarking to ensure the credibility of multimedia. We specifically address the problem of fragile digital watermarking for the tamper proofing of still images. Applications of our problem include authentication for courtroom evidence, insurance claims, and journalistic photography. We present a novel fragile watermarking approach which embeds...

In this work we present an efficient compiler that converts any circuitC into one that is resilient to tampering with 1/ poly(k) fraction of the wires, where k is a security parameter independent of the size of the original circuit |C|. Our tampering model is similar to the one proposed by Ishai et al. (Eurocrypt, 2006) where a tampering adversary may tamper with any wire in the circuit (as lon...