1,625 research outputs found

    Digital Rights Management and Consumer Acceptability: A Multi-Disciplinary Discussion of Consumer Concerns and Expectations

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    The INDICARE project – the Informed Dialogue about Consumer Acceptability of DRM Solutions in Europe – has been set up to raise awareness about consumer and user issues of Digital Rights Management (DRM) solutions. One of the main goals of the INDICARE project is to contribute to the consensus-building among multiple players with heterogeneous interests in the digital environment. To promote this process and to contribute to the creation of a common level of understanding is the aim of the present report. It provides an overview of consumer concerns and expectations regarding DRMs, and discusses the findings from a social, legal, technical and business perspective. A general overview of the existing EC initiatives shows that questions of consumer acceptability of DRM have only recently begun to draw wider attention. A review of the relevant statements, studies and reports confirms that awareness of consumer concerns is still at a low level. Five major categories of concerns have been distinguished so far: (1) fair conditions of use and access to digital content, (2) privacy, (3) interoperability, (4) transparency and (5) various aspects of consumer friendliness. From the legal point of view, many of the identified issues go beyond the scope of copyright law, i.e. the field of law where DRM was traditionally discussed. Often they are a matter of general or sector-specific consumer protection law. Furthermore, it is still unclear to what extent technology and an appropriate design of technical solutions can provide an answer to some of the concerns of consumers. One goal of the technical chapter was exactly to highlight some of these technical possibilities. Finally, it is shown that consumer acceptability of DRM is important for the economic success of different business models based on DRM. Fair and responsive DRM design can be a profitable strategy, however DRM-free alternatives do exist too.Digital Rights Management; consumers; Intellectual property; business models

    Open-TEE - An Open Virtual Trusted Execution Environment

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    Hardware-based Trusted Execution Environments (TEEs) are widely deployed in mobile devices. Yet their use has been limited primarily to applications developed by the device vendors. Recent standardization of TEE interfaces by GlobalPlatform (GP) promises to partially address this problem by enabling GP-compliant trusted applications to run on TEEs from different vendors. Nevertheless ordinary developers wishing to develop trusted applications face significant challenges. Access to hardware TEE interfaces are difficult to obtain without support from vendors. Tools and software needed to develop and debug trusted applications may be expensive or non-existent. In this paper, we describe Open-TEE, a virtual, hardware-independent TEE implemented in software. Open-TEE conforms to GP specifications. It allows developers to develop and debug trusted applications with the same tools they use for developing software in general. Once a trusted application is fully debugged, it can be compiled for any actual hardware TEE. Through performance measurements and a user study we demonstrate that Open-TEE is efficient and easy to use. We have made Open- TEE freely available as open source.Comment: Author's version of article to appear in 14th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom 2015, Helsinki, Finland, August 20-22, 201

    ReZone: disarming TrustZone with TEE privilege reduction

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    In TrustZone-assisted TEEs, the trusted OS has unrestricted access to both secure and normal world memory. Unfortunately, this architectural limitation has opened an aisle of exploration for attackers, which have demonstrated how to leverage a chain of exploits to hijack the trusted OS and gain full control of the system, targeting (i) the rich execution environment (REE), (ii) all trusted applications (TAs), and (iii) the secure monitor. In this paper, we propose REZONE. The main novelty behind REZONE design relies on leveraging TrustZone-agnostic hardware primitives available on commercially off-the-shelf (COTS) platforms to restrict the privileges of the trusted OS. With REZONE, a monolithic TEE is restructured and partitioned into multiple sandboxed domains named zones, which have only access to private resources. We have fully implemented REZONE for the i.MX 8MQuad EVK and integrated it with Android OS and OP-TEE. We extensively evaluated REZONE using microbenchmarks and real-world applications. REZONE can sustain popular applications like DRM-protected video encoding with acceptable performance overheads. We have surveyed 80 CVE vulnerability reports and estimate that REZONE could mitigate 86.84% of them.We thank our shepherd Aastha Mehta and the anonymous reviewers for their comments and suggestions. This work was supported by national funds through Centro ALGORITMI / Universidade do Minho, Instituto Superior TĂ©cnico / Universidade de Lisboa, and FCT under project UIDB/50021/2020 and UIDB/00319/2020. David Cerdeira was supported by FCT grant SFRH/BD/146231/2019

    Pervasively Distributed Copyright Enforcement

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    In an effort to control flows of unauthorized information, the major copyright industries are pursuing a range of strategies designed to distribute copyright enforcement functions across a wide range of actors and to embed these functions within communications networks, protocols, and devices. Some of these strategies have received considerable academic and public scrutiny, but much less attention has been paid to the ways in which all of them overlap and intersect with one another. This article offers a framework for theorizing this process. The distributed extension of intellectual property enforcement into private spaces and throughout communications networks can be understood as a new, hybrid species of disciplinary regime that locates the justification for its pervasive reach in a permanent state of crisis. This hybrid regime derives its force neither primarily from centralized authority nor primarily from decentralized, internalized norms, but instead from a set of coordinated processes for authorizing flows of information. Although the success of this project is not yet assured, its odds of success are by no means remote as skeptics have suggested. Power to implement crisis management in the decentralized marketplace for digital content arises from a confluence of private and public interests and is amplified by the dynamics of technical standards processes. The emergent regime of pervasively distributed copyright enforcement has profound implications for the production of the networked information society

    Human Aspects in Digital Rights Management: the Perspective of Content Developers.

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    Legal norms and social behaviours are some of the human aspects surrounding the effectiveness and future of DRM security. Further exploration of these aspects would help unravel the complexities of the interaction between rights protection security and law. Most importantly, understanding the perspectives behind the circumvention of content security may have a significant impact on DRM effectiveness and acceptance at the same time. While there has been valuable research on consumer acceptability, (The INDICARE project, Bohle 2008, Akester 2009) there is hardly any work on the human perspective of content creators. Taking video games as a case study, this paper employs qualitative socio-legal analysis and an interdisciplinary approach to explore this particular aspect of content protection

    Revisiting software protection

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    We provide a selective survey on software protection, including approaches to software tamper resistance, obfuscation, software diversity, and white-box cryptography. We review the early literature in the area plus recent activities related to trusted platforms, and discuss challenges and future directions

    Human aspects of digital rights management: the perspective of content developers. [Conference Paper]

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    Legal norms and social behaviours are some of the human aspects surrounding the effectiveness and future of DRM security. Further exploration of these aspects would help unravel the complexities of the interaction between rights protection security and law. Most importantly, understanding the perspectives behind the circumvention of content security may have a significant impact on DRM effectiveness and acceptance at the same time. While there has been valuable research on consumer acceptability (The INDICARE project, Bohle 2008, Akester 2009), there is hardly any work on the human perspective of content creators. Taking video games as a case study, this paper employs qualitative socio-legal analysis and an interdisciplinary approach to explore this particular aspect of content protection
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