The art of computer programming, volume 3: (2nd ed.) sorting and searching
The art of computer programming, volume 3: (2nd ed.) sorting and searching
Graph theory and its applications
Graph theory and its applications
Import/export in digital rights management
Proceedings of the 4th ACM workshop on Digital rights management
Modeling and implementation of digital rights
Journal of Systems and Software
A four-layer model for security of digital rights management
Proceedings of the 8th ACM workshop on Digital rights management
Efficient license validation in MPML DRM architecture
Proceedings of the nineth ACM workshop on Digital rights management
Efficient aggregate licenses validation in DRM
DASFAA'10 Proceedings of the 15th international conference on Database Systems for Advanced Applications - Volume Part II
A policy language for distributed usage control
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Hi-index | 0.00 |
In DRM systems contents are distributed from the owner to consumers, often through multiple middle level distributors. The owner issues redistribution licenses to its distributors. The distributors using their received redistribution licenses can generate and issue new redistribution licenses to their sub-distributors and new usage licenses to consumers. For the rights violation detection, all the newly generated licenses must be validated. The validation process becomes complex when there exist multiple redistribution licenses for a content with the distributors. In such cases, it requires the validation using an exponential number of validation equations, which makes the validation process much computation-intensive. Thus to do the validation efficiently, in this paper we propose a method to geometrically derive the relationship between different validation equations to identify the redundant validation equations. These redundant validation equations are then removed using graph theory concepts. Experimental results show that the validation time can be significantly reduced using our proposed approach.