A Robust Dynamic Software Watermarking

Watermarking technology has been widely applied for softwarepsilas content security. A robust software watermarking approach based on shamir threshold scheme and chaotic encryption is presented. Firstly, watermark is split into pieces using the shamir threshold scheme, which helps to retrieve the original watermark with partial information and increase resilience. Then the pieces are run through 1-D logistic chaotic encryption before embedded into the dynamic branch structure of program that improves robustness further. The advantage of this technique is that error-correcting can be used to make it resilient against various attacks. Experiment shows that our technique has great robustness, it can effectively resist semantics-preserving code transform attacks and immune from most obfuscation attacks.