Privacy Enhancing Technologies

Optimizing ORAM and Using It Efficiently for Secure Computation.- Anonymity-Preserving Public-Key Encryption: A Constructive Approach.- Efficient E-Cash in Practice: NFC-Based Payments for Public Transportation Systems.- Efficient Privacy-Preserving Stream Aggregation in Mobile Sensing with Low Aggregation Error.- Broadening the Scope of Differential Privacy Using Metrics.- Turning Off GPS Is Not Enough: Cellular Location Leaks over the Internet.- How Others Compromise Your Location Privacy: The Case of Shared Public IPs at Hotspots.- The Path Less Travelled: Overcoming Tor's Bottlenecks with Traffic Splitting.- How Low Can You Go: Balancing Performance with Anonymity in Tor.- OSS: Using Online Scanning Services for Censorship Circumvention.- The Need for Flow Fingerprints to Link Correlated Network Flows.- How Much Is Too Much? Leveraging Ads Audience Estimation to Evaluate Public Profile Uniqueness.- On the Acceptance of Privacy-Preserving Authentication Technology: The Curious Case of National Identity Cards.