Towards Usable Interfaces for Proof Based Access Rights on Mobile Devices

Abstract : Access rights management is in the middle of many collaboration forms such as group formation or sharing of information in different kinds of scenarios. There are some strong mechanisms to achieve this, like anonymous credential systems. However in general their usage is not very intuitive for lay users. In this paper we show the potential of using proof-based credential systems like Idemix to enhance the usability of privacy-respecting social interaction in different collaborative settings. For instance transparently performing authorization without any user intervention at the level of the user interface becomes possible. In order to improve the usability, we complement this by introducing a mental model for intuitive management of digital identities. The approach should also empower users to define their own access restrictions when sharing data, by building custom proof specifications on the fly. We show this exemplary with a developed prototype application for supporting collaborative scenarios on a mobile device. We also present first evaluation results of an early prototype and address current as well as future work.
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Communication dans un congrès
David Hutchison; Takeo Kanade; Madhu Sudan; Demetri Terzopoulos; Doug Tygar; Moshe Y. Vardi; Gerhard Weikum; Jan Camenisch; Dogan Kesdogan; Josef Kittler; Jon M. Kleinberg; Friedemann Mattern; John C. Mitchell; Moni Naor; Oscar Nierstrasz; C. Pandu Rangan; Bernhard Steffen. International Workshop on Open Problems in Network Security (iNetSec), Jun 2011, Lucerne, Switzerland. Springer, Lecture Notes in Computer Science, LNCS-7039, pp.15-27, 2012, Open Problems in Network Security. 〈10.1007/978-3-642-27585-2_2〉
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Marcel Heupel, Dogan Kesdogan. Towards Usable Interfaces for Proof Based Access Rights on Mobile Devices. David Hutchison; Takeo Kanade; Madhu Sudan; Demetri Terzopoulos; Doug Tygar; Moshe Y. Vardi; Gerhard Weikum; Jan Camenisch; Dogan Kesdogan; Josef Kittler; Jon M. Kleinberg; Friedemann Mattern; John C. Mitchell; Moni Naor; Oscar Nierstrasz; C. Pandu Rangan; Bernhard Steffen. International Workshop on Open Problems in Network Security (iNetSec), Jun 2011, Lucerne, Switzerland. Springer, Lecture Notes in Computer Science, LNCS-7039, pp.15-27, 2012, Open Problems in Network Security. 〈10.1007/978-3-642-27585-2_2〉. 〈hal-01481503〉

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