Swedish Institute of Computer Science Publications Database
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State of The Art and Hot Aspects in Cloud Data Storage Security
Get PDFAlong with the evolution of cloud computing and cloud storage towards matu-
rity, researchers have analyzed an increasing range of cloud computing security
aspects, data security being an important topic in this area. In this paper, we
examine the state of the art in cloud storage security through an overview of
selected peer reviewed publications. We address the question of defining cloud
storage security and its different aspects, as well as enumerate the main vec-
tors of attack on cloud storage. The reviewed papers present techniques for key
management and controlled disclosure of encrypted data in cloud storage, while
novel ideas regarding secure operations on encrypted data and methods for pro-
tection of data in fully virtualized environments provide a glimpse of the toolbox
available for securing cloud storage. Finally, new challenges such as emergent
government regulation call for solutions to problems that did not receive enough
attention in earlier stages of cloud computing, such as for example geographical
location of data. The methods presented in the papers selected for this review
represent only a small fraction of the wide research effort within cloud storage
security. Nevertheless, they serve as an indication of the diversity of problems
that are being addressed
Who is sustainable? Querying the politics of sustainable design practices
Get PDFDesign, formulated as a discipline concerned with form and problem-solving, may seem preoccupied with matters other than those of politics and the political. Traced through a history of the fine arts, for example, the concerns of design include aesthetic expression and material form. As a liberal art, design is arguably a discipline that synthesizes knowledge from across the natural and social sciences and applies it to solving complex technical and social problems. These dimensions of design are apparent in its expanding roles in sustainable development―for example, in expressing lifecycle information about products, changing energy consumption behavior, rethinking transportation or food services, and steering decision-making processes in communities or companies. Amended as 'sustainable', design is repositioned from being part of the problem of unsustainable development. However, preoccupied with forms or solutions, design is not always attentive to its political dimensions. How, by, and for whom sustainability is formulated are political questions to be discussed within discourses and practices of sustainable development―and sustainable design.
Such questions are at stake in critical studies and critical practices of design. Reflecting here on design examples from my own work and that of others, I articulate a series of such questions inspired by critical theory and political philosophy. These open a discussion of the roles of design in sustainable consumption and sustainable communities, in which it is profoundly implicated in the reorganization of everyday life. Combining reflections and examples, the graphic form of this article reflects an interweaving of theory and practice, the materiality of academia and the criticality of design
3Ecologies
No full text‘3Ecologies’ makes visible factors affecting the sustainability of consumer products. Including environmental, sociological and psychological factors in production and consumption, 3Ecologies challenges prevalent models of sustainability to emphasize human agency and consequences. Sustainability is mapped over time — as histories and potential futures of products — through lifespan and extended lifecycle(s). Under development as an open-source internet application, graphical eco-labeling scheme and interactive museum installation, 3Ecologies develops novel techniques for dynamic information visualization, interactive story-telling and user interaction. By providing a long view upon the ‘life’ of things we might ordinarily take for granted, the project aims to engage a broad audience in ecological thinking
Symbiots
No full text‘Symbiots’ imagines forms in the urban landscape that operate parasitically — emerging and thriving when households or neighborhoods reduce energy consumption. For people, the provision of these as public functions acts as a reward. For Symbiots, it lures people away from their private habitats and energy-consuming habits, thus leaving more power for others in the electricity grid. The project queries increasing competition for natural resources and current human- (versus eco-) centered design paradigms. Symbiots takes the form of a photo series in the genre of contemporary hyperreal art photography. Produced as posters, these have been the basis for raising awareness and discussions with neighborhood residents
u-BeepBeep: Low Energy Acoustic Ranging on Mobile Devices
Get PDFWe present u-BeepBeep: a low energy acoustic ranging ser-
vice for mobile phones. -BeepBeep combines the efficacy of the basic BeepBeep ranging mechanism with a light-weight cross-correlation mechanism based on sparse approximation
Electronically-switched Directional Antennas for Wireless Sensor Networks: A Full-stack Evaluation
Get PDFSocio-Ecological Innovation: Cases of sustainable urban development and design
No full textRecent decades have seen a significant shift in how profound and intractable problems such as poverty, disease, violence or environmental deterioration are handled. While such problems have traditionally been handled through national social and spatial policies in European welfare states such as Sweden, there has been a substantial redistribution to the market, regions and communities. This is embodied in the term ‘social innovation’, which marks a critical shift in how, where, and by whom societal problems are handled. Practices of social innovation involve a reconfiguration of relations between the state and citizens, relations that are may be (co-)produced in ways that are regionally, socially, and spatially specific. This paper (in the short form of ‘preliminary findings’) explores the ‘how’ of social innovation through three case studies concerning urban resources issues such as food, water, waste and land use. Building on arguments that design has become central to the (co-)production of social innovation, I examine the role of designers and design artifacts in framing and staging (co-)production within households, neighborhoods and civic arenas. Locating social innovation as the reconfiguration of society from within, I discuss these as examples through which wider social practices and systems, beliefs and authority, may be profoundly altered
Secure RPC in embedded systems - Evaluation of some GlobalPlatform implementation alternatives
No full textIn secure computing systems, isolation between different components is normally the basis for security. However, absolute isolation is seldom desired nor practical. Often for the system to function, a secure communication channel between otherwise isolated components is also needed. In this work, we consider implementation of the secure RPC mechanism defined by the GlobalPlatform specification on top of some different isolation mechanisms. Furthermore, implementation details, performance and security will be discussed
