Macquarie University Cyber Security Hub welcomes
Guest Speaker Joseph Bonneau
Title: Zero-knowledge middleboxes
Abstract:
This talk will discuss a novel application of cryptography, the zero-knowledge middlebox. There is an inherent tension between ubiquitous encryption of network traffic and the ability of middleboxes to enforce network usage restrictions. An emerging battleground that epitomizes this tension is DNS filtering with the advent of Encrypted DNS. We propose utilizing zero-knowledge proofs for clients to prove to middleboxes that their encrypted traffic is policy-compliant, without revealing any additional information. This talk will discuss our prototype implementation of zero-knowledge middleboxes and the road to practical deployment.
21st April 2022 11am-12pm
45-50 minutes lecture, 10-15minutes Q&A
Joseph Bonneau is an Associate Professor at the University of Melbourne. His research focuses on applied cryptography and security. He is a co-author of the textbook Bitcoin and Cryptocurrency Technologies. He received his PhD from the University of Cambridge and BS/MS degrees from Stanford. He has previously taught at NYU, Princeton and Stanford.
Recording available here: Listen Now!