Temporal, delegable and cheap update access control to published XML documents.

Providing access control for published XML documents on the Web is an important topic. It involves the use of cryptographic techniques, addressing different requirements and, as a result, facing several challenges. Existing solutions still have some weaknesses such as system update cost, number of required secret encryption/decryption keys, size of encrypted document and supporting temporal and delegable access. This study propose a push--based access control policy enforcement mechanism for addressing these issues using a Dynamic Key Management Table (DKMT) and based on Identity Based Encryption (IBE). The proposed mechanism addresses the existing challenges and provides a more acceptable solution

Mobile Learning: location, collaboration and scaffolding inquiry

Critiques of mobile learning pedagogy are concerned with whether such approaches are technology led. This chapter discusses how the particular features of mobile learning can be harnessed to provide new learning opportunities in relation to collaboration, inquiry and location-based learning. Technology supported inquiry learning is a situation rich with possibilities for collaboration. In particular, mobile learning offers new possibilities for scaffolding collaboration together with its other better-known features such as scaffolding the transfer between settings and making learning relevant by making use of the possibilities of location-based learning. These features are considered as part of mobile learning models, in particular mobile collaborative learning models

Designing Data Spaces

This open access book provides a comprehensive view on data ecosystems and platform economics from methodical and technological foundations up to reports from practical implementations and applications in various industries. To this end, the book is structured in four parts: Part I “Foundations and Contexts” provides a general overview about building, running, and governing data spaces and an introduction to the IDS and GAIA-X projects. Part II “Data Space Technologies” subsequently details various implementation aspects of IDS and GAIA-X, including eg data usage control, the usage of blockchain technologies, or semantic data integration and interoperability. Next, Part III describes various “Use Cases and Data Ecosystems” from various application areas such as agriculture, healthcare, industry, energy, and mobility. Part IV eventually offers an overview of several “Solutions and Applications”, eg including products and experiences from companies like Google, SAP, Huawei, T-Systems, Innopay and many more. Overall, the book provides professionals in industry with an encompassing overview of the technological and economic aspects of data spaces, based on the International Data Spaces and Gaia-X initiatives. It presents implementations and business cases and gives an outlook to future developments. In doing so, it aims at proliferating the vision of a social data market economy based on data spaces which embrace trust and data sovereignty

Federal Register

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii

The Right of Communication to the Public on Digital Platforms - Issues of Liability, Proportionality and Creativity in EU Copyright Law

Digital platforms are the next leading public communication media. So, major copyright holders insist on the exclusivity of their right to communicate their works to the public even on those platforms. But there is nothing in their right, as an intellectual property, that equips it with utter free rein over the communication rights of others providing and using digital platforms. Instead, rightholders decry the ex post and liability immunity regulatory regime of platforms under the European Union’s copyright law as grossly ill conceived. They contend that platforms edit and deal on their users uploads but hide under the guise of neutral intermediaries to avoid liabilities and evade licences on offer for copyright works appearing on their platforms. This dissertation exposes the digital platforms’ orchestrated phenomenon of global public communication and its associated risks of fundamental rights infringement by any unconscionable regulatory regime. It critically examines the scope of the Union’s right of communication to the public as a copyright and property right while identifying its pedantic boundaries with other rights. It brings to the fore the neglect creative individuals suffer where copyright law focuses more on investment rather than creativity. While assessing the limits of the platforms’ ex post regulatory regime, it fully delves into a critical appraisal of the Union’s attempt to amplify rightholders’ right in its uncanny provision in the DSM Directive. It finds the attempt to re-establish certain platforms as responsible super brokers of impartial public communication for all users quite intriguing. These platforms will necessarily, in spite of all odds, use automatic content recognition devices. As such, the extent of the public role entrusted to them as guarantors of rightholders’ rights and other fundamental rights is judiciously examined under the ‘rights balancing’ regime of the EU Charter. It concludes that the imposed copyright duties on platforms inevitably trigger a concomitant obligation to protect users’ rights. It recommends its inferred lawful-use doctrine as a copyright-sensitive protocol that engages with the unique obligations of these super platforms