Authentication Scheme of DRM System for Remote Users Based on Multimodal Biometrics, Watermarking and Smart Cards

Digital rights management (DRM) system is the effective schemes for digital transactions. A novel authentication scheme of DRM system for remote users based on multimodal biometrics (such as iris and face feature) verification and watermarking and smart cards is described in this paper, which include two authentication phases, i.e. the client server authentication and the server authentication. For the client server authentication, we integrate watermarking technique and multimodal biometric system which is based on highly secure iris recognition and face recognition to provide more secure and reliable personal recognition. In watermarking algorithm, face image is chosen to be the host image, iris feature is selected to use as watermark hidden in the host face image. For the server authentication, the proposed scheme is an extended and generalized form of ElGamal signature scheme whose security is based on discrete logarithm problem, which is not yet forged. So the proposed scheme can achieve the rights management of digital content exactly through the illegal user access control. Meanwhile, the bimodal biometrics (iris and face) recognition provides the improvement in the accuracy performance of the system.