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Making secret sharing based cloud storage usable
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). (Prisec, Privacy & Security)ORCID-id: 0000-0002-6938-4466
Austrian Institute of Techno Department of Safety and Security, Austria .
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). (Prisec, Privacy and Security)ORCID-id: 0000-0002-6509-3792
Visa övriga samt affilieringar
2019 (Engelska)Ingår i: Information and Computer Security, E-ISSN 2056-4961, Vol. 27, nr 5, s. 647-667Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The purpose of this paper is to develop a usable configuration management for Archistar, whichutilizes secret sharing for redundantly storing data over multiple independent storage clouds in a secure andprivacy-friendly manner. Selecting the optimal secret sharing parameters, cloud storage servers and othersettings for securely storing the secret data shares, while meeting all of end user’s requirements and otherrestrictions, is a complex task. In particular, complex trade-offs between different protection goals and legalprivacy requirements need to be made.

Ort, förlag, år, upplaga, sidor
Emerald Group Publishing Limited, 2019. Vol. 27, nr 5, s. 647-667
Nyckelord [en]
Privacy, Decision support systems, Usability, Security, Cloud computing, Secret sharing
Nationell ämneskategori
Datavetenskap (datalogi)
Forskningsämne
Datavetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-75182DOI: 10.1108/ICS-01-2019-0016OAI: oai:DiVA.org:kau-75182DiVA, id: diva2:1359466
Projekt
Prismacloud (4805)
Forskningsfinansiär
EU, Horisont 2020Tillgänglig från: 2019-10-09 Skapad: 2019-10-09 Senast uppdaterad: 2019-12-16Bibliografiskt granskad
Ingår i avhandling
1. Tinkering the Wicked Problem of Privacy: Design Challenges and Opportunities for Crypto-based Services
Öppna denna publikation i ny flik eller fönster >>Tinkering the Wicked Problem of Privacy: Design Challenges and Opportunities for Crypto-based Services
2020 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Data privacy has been growing in importance in recent years, especially with the constant increase of online activity. Consequently, researchers study, design, and develop solutions aimed at enhancing users' data privacy. The wicked problem of data privacy is a dynamic 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 explore challenges and opportunities with a focus on human aspects for designing usable crypto-based privacy-enhancing technologies (PETs). Mainly, there were three PETs in the cloud context included in our studies: malleable signatures, secret sharing, and homomorphic encryption. Based on the three PETs, services were developed within European research projects that were the scope of our user studies. We followed a user-centered design approach by using empirical qualitative and quantitative means for collecting study data. Our results and tinkering conveyed (i) analysis of different categories of user's perspectives, mental models, and trade-offs, (ii) user requirements for PET services, and (iii) user interface design guidelines for PET services. In our contributions, we highlight considerations and guidelines for supporting the design of future solutions.

Abstract [en]

Data privacy has been growing in importance in recent years, especially with the constant increase of online activity. Consequently, researchers study, design, and develop solutions aimed at enhancing users' data privacy. The wicked problem of data privacy is a dynamic 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 explore challenges and opportunities with a focus on human aspects for designing usable crypto-based privacy-enhancing technologies (PETs). Our results and tinkering conveyed (i) analysis of different categories of user's perspectives, mental models, and trade-offs, (ii) user requirements for PET services, and (iii) user interface design guidelines for PET services. In our contributions, we highlight considerations and guidelines for supporting the design of future solutions.

Ort, förlag, år, upplaga, sidor
Karlstads universitet, 2020. s. 22
Serie
Karlstad University Studies, ISSN 1403-8099 ; 2020:5
Nyckelord
Data privacy, wicked problems, user-centered design, privacy enhancing technologies, human factors, malleable signatures, secret sharing, homomorphic encryption
Nationell ämneskategori
Datavetenskap (datalogi) Människa-datorinteraktion (interaktionsdesign)
Forskningsämne
Datavetenskap
Identifikatorer
urn:nbn:se:kau:diva-75992 (URN)978-91-7867-077-2 (ISBN)978-91-7867-087-1 (ISBN)
Disputation
2020-01-30, 21A342, Eva Eriksson, 10:15 (Engelska)
Opponent
Handledare
Tillgänglig från: 2020-01-09 Skapad: 2019-12-16 Senast uppdaterad: 2020-01-27Bibliografiskt granskad

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Framner, ErikFischer-Hübner, SimoneAlaqra, AlaaPettersson, John Sören

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Framner, ErikFischer-Hübner, SimoneAlaqra, AlaaPettersson, John Sören
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