mšglich sind. Die BeitrŠge dieser Dissertation sind im Einzelnen: - Wir untersuchen die Eignung sog. Privacy … an untrusted service provider. We explore the limits of the security that is achievable in these scenarios. When … discussing security, we refer to the state of the art definitions from cryptography and complexity theory. The key contributions …

range of different information sources. In more sensitive application areas however, the privacy of the data holders can be … of detail, patients are only willing to provide data when their privacy is guaranteed. This conflict of interest between … with a solution that is satisfactory to both. The specific contributions of this thesis are the following: - Privacy …