Digital rights management architectures

Jamkhedkar, Pramod A.; Heileman, Gregory L.

doi:10.1016/j.compeleceng.2008.06.012

Cited by 32 publications

(18 citation statements)

References 12 publications

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“…We calculated the number of elementary ranges for all constraints using N redistribution licenses generated in each experiment. Thus, in case of N = 3, if the j th constraint ranges for a permission in three licenses are [10,20], [15,25], and [20,25] then rj will be 5. Then, we simulate the equations: The comparison between direct method, modified direct method and our method for validation time (per issued license) and storage space (for N licenses) is shown in figure 6(a) and 6(b) respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Since it is not found so the point 5 is inserted along constraint dimension 2 as shown in figure 3(b). Since the point 5 divides the range (0,10] so a bit-vector same as that of the range (0,10] in figure 3(a) is assigned to both (0,5) and [5,10]. Similarly, the point 15 is inserted, as represented in figure 3(c).…”

Section: Transform For Multiple Licensesmentioning

confidence: 99%

“…Different pricing structure for different range of constraints may not be handled with a single redistribution license. For example, for promotional purpose per unit play permission cost may be lower if a consumer purchases play permission counts in the range [11,20] rather than [1,10], or price of a media may be different in Asia and America. In both the cases discussed above distributors are required to have different redistribution licenses for different constraint ranges.…”

Section: Introductionmentioning

confidence: 99%

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Efficient license validation in MPML DRM architecture

Sachan

Emmanuel

Kankanhalli

2009

Proceedings of the Nineth ACM Workshop on Digital Rights Management

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Multiparty multilevel DRM architecture (MPML-DRM-A) involves multiple parties such as owner, multiple levels of distributors and consumers. The owner issues redistribution licenses to its distributors, who in turn generate and issue variations of these redistribution licenses to their subdistributors. Also the distributors generate and issue usage licenses to the consumers to consume the contents. But, these variations of the redistribution licenses and usage licenses generated and issued by each distributor must be validated by a validation authority against the redistribution licenses that it has received. In MPML-DRM-A, there may exist multiple, different types of redistribution licenses for a content. Validation using multiple redistribution licenses may become difficult in real time. Further, storage of multiple redistribution licenses for validation presents a challenge of reducing storage space requirements. Hence, in this paper we propose a bit-vector transform based license organizing structure, and present a method to do the validation of issued licenses in the bit-vector transform domain efficiently. Experimental results show that our license organization structure helps to achieve low validation time and storage space complexity. Categories and Subject Descriptors General TermsAlgorithms, Security Keywords Digital Rights Management (DRM), License Organization, License ValidationPermission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. DRM'09, November 9, 2009, Chicago, Illinois, USA. Copyright 2009 ACM 978-1-60558-779-0/09/11 ...$10.00.

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Section: Resultsmentioning

confidence: 99%

Section: Transform For Multiple Licensesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficient license validation in MPML DRM architecture

Sachan

Emmanuel

Kankanhalli

2009

Proceedings of the Nineth ACM Workshop on Digital Rights Management

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“…Digital Rights Management (DRM) technology [45,82,85,124,193,196,218] primarily aims at the persistent protection of copyrighted digital content such as images, video, audio, book, games, text, or any combination thereof. In a nutshell, One major drawback of DRM is that it lacks any standards [65].…”

Section: Digital Rights Management (Drm)mentioning

confidence: 99%

Data Usage Control for Distributed Systems

Kelbert

Pretschner

2018

ACM Trans. Priv. Secur.

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AcknowledgementsMy thanks go to• Prof. Pretschner. For introducing me to the academic world with all its diverse aspects: administrative matters, conferences, discussions, learning, reading, presentations, projects, reviewing, teaching, writing, pain and glory. For letting me work on an interesting thesis topic. For guidance, feedback, liberty, criticism and plaudits.• Prof. Katzenbeisser. For providing feedback on earlier partial results of this thesis.• all co-authors and internal reviewers. Alexander, Dominik, Enrico, Fatemeh, Hervais, Matthias, Mojdeh, Prachi, Saahil, Sebastian, Tobias. For teaching me how to collaboratively write scientific documents and how to cope best with endless discussions, reviews, corrections, rewriting, etc.• all remaining current and former colleagues and collaborators from KIT, TUM, • all project partners from TU Darmstadt, Universität Freiburg, Universität Kassel, Capurro Fiek Stiftung für Informationsethik, Fraunhofer SIT, Google Germany GmbH, Deutsche Post AG, Nokia, IBM, AGT International, DFKI, Seeburger, Stadtwerke Saarlouis. For innumerable interesting and diverse experiences.• all developers and authors of free tools and Q&A websites. For developing and maintaining software such as Eclipse, Firefox, Gimp, Gnome, Gnuplot, Inkscape, LaTeX, LibreOffice, Linux, StackExchange, Thunderbird, and many more.• all friends and family. Which are simply too many to enumerate. For constantly reminding me, both consciously and unconsciously, in countless ways that there is more to life than work and research. AbstractData usage control provides mechanisms for data owners to remain in control over how their data is used after it has been accessed. Corresponding technical solutions are thus applicable in many distinct areas such as the protection of business, military and government secrets, intellectual property, as well as private user data. However, most existing solutions focus on the enforcement of data usage control within single systems and disregard distributed aspects of data usage control, i.e. how the usage of data can be controlled once data has been shared across systems and organizations.In fact, many data usage policies can only be enforced on a global scale, as they refer to data as well as data usage events happening within several distributed systems, e.g. "at each point in time at most two clerks might have a local copy of this contract", or "a contract must be approved by at least two clerks before it is sent to the customer".While such policies can intuitively be enforced using a centralized infrastructure, major drawbacks are that such solutions constitute a single point of failure and that they are expected to cause heavy communication and performance overheads.In order to address these open challenges, this dissertation contributes by providing (i) a formal distributed data usage control system model, and (ii) the first fully decentralized infrastructure for the preventive enforcement of data usage policies. More precisely, the provided model allows to track the f...

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“…These are the consumers DRM affects the most and the one crowd that gets little representation in DRM research. The cryptography sided research in DRM discusses how to implement a stronger form of protection using advanced algorithms and complicated frameworks (Heileman and Jamkhedkar, 2008). Such research is quick to forget that beyond the DRM implementation is a product that should appeal to a wide consumer base in order for it to meet full sales potential.…”

Section: Introductionmentioning

confidence: 99%

An Evaluation of Multiple Perceptions of Digital Rights Management

Stott

Taneja

2009

Lecture Notes in Business Information Processing

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Digital Rights Management (DRM) solutions have generated much interest because of their influence on the expectations and responsibilities of customers and related organizations. It was created to restrict piracy and enhance digital media sales, however, it is found to be unable to fulfill its objectives. We find the protections by DRM lack an understanding of the end user and the evolving nature of copyright and fair use. The potential motives for pirating appear to increase as DRM becomes more intrusive causing a conflict in the objectives of DRM. Thus, adjustments must be made to the current DRM model in order for it to become beneficial for both the producer and the consumer. Our research identifies the needs, desires, and responsibilities of the various DRM stakeholders so that a successful use of DRM technologies can be modeled: a challenge faced by the media industry.

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Digital rights management architectures

Cited by 32 publications

References 12 publications

Efficient license validation in MPML DRM architecture

Efficient license validation in MPML DRM architecture

Data Usage Control for Distributed Systems

An Evaluation of Multiple Perceptions of Digital Rights Management

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