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Information Security Theory and Practice -- Security, Privacy and Trust in Computing Systems and Ambient Intelligent Ecosystems

Christin, Delphine and Sánchez López, P. and Reinhardt, Andreas and Hollick, Matthias and Kauer, Michaela Askoxylakis, Ioannis and Pöhls, Henrich and Posegga, Joachim (eds.) (2012):
Information Security Theory and Practice -- Security, Privacy and Trust in Computing Systems and Ambient Intelligent Ecosystems.
In: LNCS, In: Proceedings of the 6th Workshop in Information Security Theory and Practice (WISTP), Springer, pp. 71-86, [Book Section]

Abstract

A continually increasing number of pictures and videos is shared in online social networks. Current sharing platforms however only offer limited options to define who has access to the content. Users may either share it with individuals or groups from their social graph, or make it available to the general public. Sharing content with users to which no social ties exist, even if they were physically close to the places where content was created and witnessed the same event, is however not supported by most existing platforms. We thus propose a novel approach to share content with such users based on so-called privacy bubbles. Privacy bubbles metaphorically represent the private sphere of the users and automatically confine the access to the content generated by the bubble creator to people within the bubble. Bubbles extend in both time and space, centered around the collection time and place, and their size can be adapted to the user’s preferences. We confirm the user acceptance of our concept through a user study with 175 participants, and a prototype implementation shows the technical feasibility of our scheme.

Item Type: Book Section
Erschienen: 2012
Editors: Askoxylakis, Ioannis and Pöhls, Henrich and Posegga, Joachim
Creators: Christin, Delphine and Sánchez López, P. and Reinhardt, Andreas and Hollick, Matthias and Kauer, Michaela
Title: Information Security Theory and Practice -- Security, Privacy and Trust in Computing Systems and Ambient Intelligent Ecosystems
Language: English
Abstract:

A continually increasing number of pictures and videos is shared in online social networks. Current sharing platforms however only offer limited options to define who has access to the content. Users may either share it with individuals or groups from their social graph, or make it available to the general public. Sharing content with users to which no social ties exist, even if they were physically close to the places where content was created and witnessed the same event, is however not supported by most existing platforms. We thus propose a novel approach to share content with such users based on so-called privacy bubbles. Privacy bubbles metaphorically represent the private sphere of the users and automatically confine the access to the content generated by the bubble creator to people within the bubble. Bubbles extend in both time and space, centered around the collection time and place, and their size can be adapted to the user’s preferences. We confirm the user acceptance of our concept through a user study with 175 participants, and a prototype implementation shows the technical feasibility of our scheme.

Title of Book: Proceedings of the 6th Workshop in Information Security Theory and Practice (WISTP)
Series Name: LNCS
Volume: 7322
Publisher: Springer
ISBN: 978-3-642-30954-0
Uncontrolled Keywords: Secure Things
Divisions: LOEWE
LOEWE > LOEWE-Zentren
LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt
Date Deposited: 31 Dec 2016 11:08
Identification Number: TUD-CS-2012-0119
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