Techniques for private resource allocation
Speaker: ZachTitle: Techniques for private resource allocation
Date: 06 Mar 2023 16:30-18:00 EST
Location: SEC Room 1.412
Food: Tacos
I will discuss a cryptographic primitive called a private resource allocator (PRA). PRAs can allocate resources to a set of clients without revealing to those clients whether anyone else received a share of the resources. I’ll show some constructions of PRAs that provide guarantees ranging from information-theoretic to differential privacy, and discuss how they can be used to prevent a new class of attacks that we call allocation-based side-channel attacks. These attacks can be used, for example, to break the privacy guarantees of anonymous messaging systems that were designed specifically to defend against side-channels and traffic analysis. This was joint work with Sebastian Angel and Sampath Kannan.