Secure Spread-Spectrum Watermark Detection Based on Extended TPM

One of the threats to watermarking security is unauthorized removal. In this paper, we present a framework based on extended TPM to solve this problem. As to the spread spectrum (SS) watermarking schemes we believe that it has the capability of read- but-not-remove if the platform software environment on which watermark detection process run is trusted. We think using Trusted Computing Platform could enhance the security of watermarking detection. Firstly, to support our framework, we point out that standard TCG must be extended. Secondly, we discuss the security and feasibility about our method. Finally, we use a SS watermarking scheme as an example and come to a conclusion that a traditional watermarking scheme could get the capability of secure detection after being transformed based on our framework.