I am a researcher in the security group at IBM Research Zurich, where I work in the area of cryptography, information security and privacy. More specifically, I'm interested in the design of cryptographic protocols with provable security guarantees. See the publications section for recent research results. I'm also interested in bringing new crypto and privacy techniques into the real world. Recent examples are our works on chameleon pseudonyms for distributed databases and password-based protocols that withstand offline attacks in case of server breaches. In the ABC4Trust, FutureID and FI-Ware projects, I was further working on the deployment of privacy-enhancing credentials, such as IBM's Identity Mixer, in real-world applications and infrastructures.