Secure signal processing: Privacy preserving cryptographic protocols for multimedia

Recent advances in technology provided a suitable environment for the people in which they can benefit from online services in their daily lives. Despite several advantages, online services also constitute serious privacy risks for their users as the main input to algorithms are privacy sensitive such as demographic information, shopping...

Private Computing with Untrustworthy Proxies

The objective of this thesis is to preserve privacy for the user while untrustworthy proxies are involved in the communication and computation i.e. private computing. A basic example of private computing is an access control system (proxy) which grants access (or not) to users based on fingerprints. For privacy reasons the user does not want to...

Information availability and data breaches: Data breach notification laws and their effects

In response to evolving cybersecurity challenges, global spending on information security has grown steadily, and could eventually reach a level that is inefficient and unaffordable. A better understanding of new socio-technical-economic complexities around information security is urgently needed, which requires both reconsideration of...