Low-Cost Memory Interposer Attacks On Confidential Computing (opens in new tab)

As cloud computing adoption grows, so do concerns about trust and data privacy\. Confidential computing, powered by innovative hardware technologies like Intel SGX and AMD SEV, promises strong isolation and transparent memory encryption to protect against privileged attackers and physical threats such as bus snooping and cold boot attacks\. In this talk we present a custom, low-cost \(50 dollar\) DDR4 interposer that dynamically manipulates memory address lines to create adversarial aliases, ...