Simply tell me how -- On Trustworthiness and Technology Acceptance of Attribute-Based Credentials
Rachel Crowder, George Price, Thomas Gro{\ss}

TL;DR
This study investigates how intrinsic and presentation factors influence trustworthiness and acceptance of Attribute-Based Credential Systems through controlled experiments, identifying key communication strategies that enhance adoption.
Contribution
It provides the first causal evidence, via a structural equation model, of how specific communication factors impact trust and acceptance of ACS technology.
Findings
Communicating simplicity and everyday usage positively affect acceptance.
Facilitating conditions and demonstrating results increase trustworthiness and behavioral intent.
First causal, structural model linking communication factors to ACS acceptance.
Abstract
Attribute-based Credential Systems (ACS) have been long proposed as privacy-preserving means of attribute-based authentication, yet neither been considered particularly usable nor found wide-spread adoption, to date. To establish what variables drive the adoption of \ACS as a usable security and privacy technology, we investigated how intrinsic and presentation properties impact their perceived trustworthiness and behavioral intent to adopt them. We conducted two confirmatory, fractional-factorial, between-subject, random-controlled trials with a total UK-representative sample of participants. Each participant inspected one of 24 variants of Anonymous Credential System Web site, which encoded a combination of three intrinsic factors (\textsf{provider}, \textsf{usage}, \textsf{benefits}) and three presentation factors (\textsf{simplicity}, presence of \textsf{people}, level of…
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Taxonomy
TopicsPrivacy, Security, and Data Protection · Privacy-Preserving Technologies in Data
