Runtime Detection of Probing/Tampering on Interconnecting Buses

It has been reported that physical probing on an off-chip bus can reveal confidential information in an electronic system. An attacker can use non-invasive and inexpensive electric probes (or interposers) to measure signals from circuit traces, such as the memory bus between the memory controller and a memory module. This paper describes a method to detect any bus probing/tampering by tracking the...