Proceedings of the 7th ACM workshop on Digital identity management

Abstract

It is our great pleasure to welcome you to the 7th ACM Digital Identity Management Workshop -- DIM 2011. Identity is on the move -- With an ever-rising number of mobile devices, the popularity of tablet PCs, the continuum of computing and communication devices as well as the continuous connectivity paradigm of mobile devices and cloud-based services, identity management is used - and needed - everywhere. Whether at home, at work, or on the move, services may be accessed and come with requirements for authentication, authorization and proof of attribute claims. As mobile computing is woven into our lives, identity management is confronted with a plethora of scenarios: online and offline usage of identity services, user-centricity, federation, ad-hoc setup, discovery and negotiation. Identity is on the move -- With an unimpeded growth of social networks, the flood of apps growing by the minute, and the emerging mash-up, location-based, and peer-2-peer user-centric services, we find an ever-changing, lively environment for identity. In this multi-faceted environment, identity management needs to be on the move, as well. Paradigms that have been solid foundations of identity management in recent years change and are re-prioritized. Whereas authentication and certified claims from a trusted identity provider were predominant in traditional identity federation, we find factors such as reputation, social network structure, location and vicinity to be of growing importance. A key question is regarding what makes an electronic identity? Is it a UUID or user attributes or claims? This would impact how identity transactions would look like and fit seamlessly in the new technologies. We need to question how electronic identity interacts with a user's life. We are certain of one thought: identity research needs to be versatile, light-footed and constantly on the move. Keeping this theme in mind, we are very grateful that two exceptional key note speakers joined our workshop. Having just completed the European Research project Privacy and Identity Management for Life (Primelife), they have been investigating identity on the move in their own way. Last year's ACM award winner Dr. Jan Camenisch (IBM Research, Switzerland) will introduce us to new cryptographic building blocks and their applications to open new paths for identity and privacy. Prof. Ronald Leenes (Tilburg University, The Netherlands) will trace the (mis-)steps of social networks and their dangers for identity and privacy as well as propose new directions for this area. Thus, our keynotes reflect recent developments in identity, in terms of risks and new possibilities. For our sessions we also keep this diversity. We will have a session on policies and frameworks and one on cryptographic primitives. Also, we pursue authentication and biometrics as well as social networks and usability. We hope that you will find this program interesting and thought-provoking and that the symposium will provide you with a valuable opportunity to share ideas with other researchers and practitioners from institutions around the world. We hope that you will find this program interesting as well as inspiring. At the Digital Identity Management Workshop, we have a tradition of nurturing lively discussions for the benefit of researchers and practitioners. Thus, we are looking forward to the opportunity for sharing ideas and dynamic discourse. Welcome to DIM'2011!