Abstract-Multiparty multilevel digital rights management (DRM) architecture involving several levels of distributors in between an owner and a consumer has been suggested as an alternative business model to the traditional two-party (buyer-seller) DRM architecture for digital content delivery. In the two-party DRM architecture, cryptographic techniques are used for secure delivery of the content and watermarking techniques are used for protecting the rights of the seller and the buyer. The cryptographic protocols used in two-party case for secure content delivery can be directly applied to the multiparty multilevel case. However, the watermarking protocols used in two-party case may not directly carry over to the multiparty multilevel case as it need to address the simultaneous security concerns of multiple parties such as owner, multiple levels of distributors and consumers. Towards this, in this paper we propose a joint digital watermarking scheme using Chinese remainder theorem for the multiparty multilevel DRM architecture. In the proposed scheme, a watermark information is jointly created by all the parties involved and then a watermark signal is generated out of it and embedded into the content. This scheme takes care of the security concerns of all the parties involved. Further, in the event of finding an illegal copy of the content, the traitors can be traced back.
Thomas et al. REF proposed a joint watermarking scheme and protocol for multiparty Secure Image Retrieval 3 multilevel DRM architecture involving several levels of distributions between an owner and a consumer.
Joint Watermarking Scheme for Multiparty Multilevel DRM Architecture
IEEE Transactions on Information Forensics and Security
IEEE Transactions on Information Forensics and Security
Computer Science