On the Security of Content key Distribution Framework for DRM systems

After the advancement of digital and Internet technologies, digital content mugging has become a major concern for the multimedia business to deal with. To combat piracy, digital rights management (DRM) systems are implemented. In DRM systems, protocols are being developed to provide secure communication. In this paper, we calibrate a recently proposed authentication protocol for DRM systems to understand security and privacy challenges. The objective of this cryptanalysis is to get a broad perspective of authentication schemes, which would help us to design secure and efficient authentication schemes for DRM systems. In this present study, we perform cryptanalysis of authentication protocol for DRM systems using biometrics by Khan et al.’s. Their scheme supports efficient communication and gives a better solution for the digital right management system. However, we identified that their scheme has some serious security flaws. Based on our analysis, we present a comparative study in terms of execution cost and security attributes to establish a tradeoff between efficiency and security.