Stealth Announces Two New Results at Usenix ’21

As part of the Wizkit project, Daniel Genkin (UMichigan) and collaborators presented their findings “Prime+Probe 1, JavaScript 0: Overcoming Browser-based Side-Channel Defenses” on browser-based side-channel attacks at the 30th USENIX Security Symposium. Their work demonstrates the first browser-based side-channel attack which is constructed entirely from Cascading Style Sheets (CSS) and HTML, which works even when script execution is completely blocked. A link to the corresponding publication (in the conference proceedings) can be found here. Jonathan Katz (UMD), Xiao Wang (NWU) and collaborators presented “Mystique: Efficient Conversions for Zero-Knowledge Proofs with Applications to Machine Learning” at the same conference which can be found here.