Current practices with web-based authentication processes and the use of personal data lead to password-fatigue, social-network fatigue and unsolicited use of personal data across service providers. Stronger privacy sensitive data protection technologies may resolve these issues. Based on a literature review, the design challenges, guidelines and constraints for privacy enhancing identity management have been elicited. Based on this review, the architectural blueprint for hereiam.tm has been described. This distributed privacy enhancing identity management platform has been designed to offer secure insight and control over personal data to the individual and single-sign-on facilities to service providers. The platform adopts a conceptual model that supports the use of multiple personae, relationship-pseudonyms and attribute sharing. Based on semi-structured interviews, the resulting design artifacts have been evaluated and the attitude of industry stakeholders towards privacy and user-centric identity management has been discussed. The findings of this research may serve as a basis for real-world implementation of the platform or as a guiding instrument to future researchers in the identity management research area
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