Concepts like ubiquitous computing and ambient intelligence that exploit increasingly
interconnected networks and mobility put new requirements on data
management. An important element in the connected world is that data will
be accessible anytime anywhere. This also has its downside in that it becomes
easier to get unauthorized data access. Furthermore, it will become easier to
collect, store, and search personal information and endanger people’s privacy.
As a result security and privacy of data becomes more and more of an issue.
Therefore, secure data management, which is also privacy-enhanced, turns out
to be a challenging goal that will also seriously influence the acceptance of ubiquitous
computing and ambient intelligence concepts by society.