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Signatures for Privacy, Trust and Accountability in the Cloud: Applications and Requirements
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (PriSec)ORCID iD: 0000-0002-6509-3792
Karlstad University, Division for Information Technology. (PriSec)ORCID iD: 0000-0002-6938-4466
Newcastle University, Newcastle, UK.
Austrian Institute of Technology, Vienna, Austria.
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2015 (English)In: Privacy and Identity Management. Time for a Revolution?: 10th IFIP WG 9.2, 9.5, 9.6/11.7, 11.4, 11.6/SIG 9.2.2 International Summer School, Edinburgh, UK, August 16-21, 2015, Revised Selected Papers / [ed] David Aspinall, Jan Camenisch, Marit Hansen, Simone Fischer-Hübner, Charles Raab, Springer Publishing Company, 2015, Vol. 476, p. 79-96Conference paper, Published paper (Refereed)
Abstract [en]

This paper summarises the results of a workshop at the IFIP Summer School 2015 introducing the EU Horizon 2020 project PRISMACLOUD, that is, Privacy and Security Maintaining Services in the Cloud. The contributions of this summary are three-fold. Firstly, it provides an overview to the PRISMACLOUD cryptographic tools and use-case scenarios that were presented as part of this workshop. Secondly, it distills the discussion results of parallel focus groups. Thirdly, it summarises a ``Deep Dive on Crypto'' session that offered technical information on the new tools. Overall, the workshop aimed at outlining application scenarios and eliciting end-user requirements for PRISMACLOUD.

Place, publisher, year, edition, pages
Springer Publishing Company, 2015. Vol. 476, p. 79-96
Series
IFIP Advances in Information and Communication Technology, ISSN 1868-4238 ; 476
Keyword [en]
Privacy, Cloud Computing, Functional Signatures, Malleable Signatures, Graph Signatures, Anonymous Credentials, User Requirements
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-43022DOI: 10.1007/978-3-319-41763-9_6ISBN: 978-3-319-41762-2 (print)OAI: oai:DiVA.org:kau-43022DiVA, id: diva2:937594
Conference
IFIP Summer School, Edinburgh, 16.‐21. August 2015
Projects
PRISMACLOUD
Funder
EU, Horizon 2020, 4805
Available from: 2016-06-15 Created: 2016-06-15 Last updated: 2018-06-04Bibliographically approved
In thesis
1. The Wicked Problem of Privacy: Design Challenge for Crypto-based Solutions
Open this publication in new window or tab >>The Wicked Problem of Privacy: Design Challenge for Crypto-based Solutions
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Data privacy has been growing in importance in recent years, especially with the continuous increase of online activity. Researchers study, design, and develop solutions aimed at enhancing users’ data privacy. The wicked problem of data privacy is a continuous challenge that defies straightforward solutions. Since there are many factors involved in data privacy, such as technological, legal, and human aspects, we can only aim at mitigating rather than solving this wicked problem. Our aim was to focus on human aspects for designing usable crypto-based privacy-enhancing solutions.  In this thesis, we followed a user centered design method by using empirical qualitative means for investigating user’s perceptions and opinions of our solutions. Most of our work has focused on redactable signatures in the cloud context within the eHealth use-case. Redactable signatures are  a privacy enhancing scheme allowing to remove parts of a signed document by a specified party for achieving data minimization without invalidating the respective signature.

We mainly used semi-structures interviews and focus groups in our investigations. Our results yielded key HCI considerations as well as guidelines of different means for supporting the design of future solutions.

Abstract [en]

Data privacy has been growing in importance in recent years, especially with the continuous increase of online activity. Researchers continuously study, design, and develop solutions aimed at enhancing users’ data privacy. The wicked problem of data privacy is the continuous challenge that defies straightforward solutions. Since there are many factors involved in data privacy, such as technological, legal, and human aspects, we can only aim at mitigating rather than solving this wicked problem.

Our aim was to focus on human aspects for designing usable crypto-based privacy-enhancing solutions.  In this thesis, we followed a user centered design method by using empirical qualitative means for investigating user’s perceptions and opinions of our solutions. Most of our work has focused on redactable signatures in the cloud context within an eHealth use-case. Redactable signatures are a privacy-enhancing scheme, which allow the removal of parts of a signed document by a specified party without invalidating the respective signature. Our results yielded key HCI considerations as well as guidelines of different means for supporting the design of future solutions.

Place, publisher, year, edition, pages
Karlstad: Karlstads universitet, 2018. p. 14
Series
Karlstad University Studies, ISSN 1403-8099 ; 2018:23
Keyword
Data privacy, wicked problems, user-centered design, crypto-based solutions, usability, data minimization, redactable signatures
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-67134 (URN)978-91-7063-856-5 (ISBN)978-91-7063-951-7 (ISBN)
Presentation
2018-06-11, 10:15 (English)
Opponent
Supervisors
Available from: 2018-05-23 Created: 2018-04-23 Last updated: 2018-05-31Bibliographically approved

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Alaqra, Ala(a)Fischer-Hübner, Simone

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Citation style
  • apa
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