Title: SCENARIOS AND A STORY ON IDENTITY, ANONYMITY AND PSEUDONYMITY, ICPP

Scenarios and a Story on Identity, Anonymity and Pseudonymity, ICPP

Christian Krause, Henry Krasemann, Martin Meints, ICPP 

As Independent Centre for Privacy Protection (Unabhängiges Landeszentrum für Datenschutz) we are especially interested in privacy-protecting aspects of Identity Management and Identity Management Systems. We understand anonymisation and pseudonymisation basically as privacy-protecting mechanisms in Identity Management Functions and Systems. To clarify this we contribute a story on anonymity services on the Internet and a scenario of an idealised web-based shop system using different pseudonyms in various pseudonym domains. The last scenario shows how privacy-invasive GUIDs in the context of a personalised recommendation system could be replaced by a less invasive solution.  

In general our view is focused on technologies and processes to show how privacy protection works or could work according to the European Data Protection Directive 95/46/EC. In addition many services are provided in countries where this Directive or European legislation in general does not apply, but privacy is regarded as a human right, and privacy principle such as the Fair Information Practices are spread around the globe. Please refer to chapter (, scenarios from Claudia Diaz) to get an impression on possible society impacts of existing or missing privacy compliance.