University of Cambridge > > Computer Laboratory Systems Research Group Seminar > Managing Privacy Trade-Offs in the Internet

Managing Privacy Trade-Offs in the Internet

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If you have a question about this talk, please contact Liang Wang.

Using a communication network entails an inherent privacy risk: when personal data enters the network, it is processed and observed by third parties the user may not trust. In some cases, the user may not even trust the other endpoint. Techniques exist to protect user privacy, but they typically provide privacy at the expense of other desirable properties. For example, onion routing services like Tor effectively hide a packet’s true sender but weakens accountability by making it nearly impossible for network administrators to track down malicious senders. Similarly, encryption hides application data from third parties but prevents the use of middleboxes-devices that process packets in the network to improve performance, like caches, or offer extra functionality, like firewalls. In this talk, I’ll present past and ongoing work to balance these “Privacy vs. X” tradeoffs.

Bio: David is a fifth year Ph.D. student at Carnegie Mellon University, where he’s advised by Peter Steenkiste. His primary research interests are computer networking, security, and privacy, but he’s also interested in Web measurement and performance ( and David is in Cambridge this summer working with MSR to secure network middleboxes. (If you know any good running routes in Cambridge, let him know.)

This talk is part of the Computer Laboratory Systems Research Group Seminar series.

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