Watermarking of uncompressed and compressed video
Signal Processing
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
SMARXO: towards secured multimedia applications by adopting RBAC, XML and object-relational database
Proceedings of the 12th annual ACM international conference on Multimedia
An authorization model for multimedia digital libraries
International Journal on Digital Libraries
Multimedia-based authorization and access control policy specification
Proceedings of the 3rd ACM workshop on Secure web services
Security and privacy for multimedia database management systems
Multimedia Tools and Applications
A compressed-domain watermarking algorithm for mpeg audio layer 3
MM&Sec '01 Proceedings of the 2001 workshop on Multimedia and security: new challenges
MM&Sec '01 Proceedings of the 2001 workshop on Multimedia and security: new challenges
A multimedia access control language for virtual and ambient intelligence environments
Proceedings of the 2007 ACM workshop on Secure web services
Novel blind multiple watermarking technique for images
IEEE Transactions on Circuits and Systems for Video Technology
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We propose a system for organizing the creation and the interaction in multimedia environments that permit the collaboration among artists and audience. This system approaches security issues in multimedia content performing authorization and watermarking mechanisms. Authorization mechanism controls artist and audience operations in multimedia files based on a set of actions imposed on real-life scenarios. Digital watermarking mechanism handles copyright-protection and authentication issues that appear in multimedia systems applying a semantically secure watermark. The main contribution of such a watermark relies on the fact that it gives to the users the enhanced capability their ownership of the multimedia file not to be accomplished simply by detecting the bit pattern that comprises the watermark itself, but by showing that the legal owner knows a hard to compute property of the watermark. The strength of our system considers multimedia content not as an atomic digital entity, but as a part of a project with a specific workflow that applies watermarking techniques in all its parts.