Invalidate+Compare: A Timer-Free GPU Cache Attack Primitive

Watch a 13-minute conference presentation from USENIX Security '24 exploring novel GPU cache side-channel attack techniques. Discover groundbreaking research on information leakage vulnerabilities in NVIDIA's Ampere and Ada Lovelace GPU generations through a new timer-free attack primitive called Invalidate+Compare. Learn how researchers reverse engineered GPU cache hierarchy properties and demonstrated practical applications through website fingerprinting and virtual keyboard keystroke monitoring attacks. Gain insights into this pioneering work that represents the first documented timer-free cache side-channel attacks successfully executed on GPU architecture.