By inventing and using cryptography I try to regain the fading privacy of our increasingly electronic society. See my publications for the crypto mechanisms and see the PrimeLife project for how to use them.
I'm a member of the IBM Academy of Technology and the technical leader of the EU-funded project PrimeLife. I was the technical leader of EU-funded project PRIME and PrimeLife and am now involved in ABC4Trust, FutureID, and FIwarePS. For those who read german: here's a newspaper article describing my work :-)