Presentation
TRAC: Transparent Row Activation Counting for Efficient Rowhammer Monitoring
DescriptionRowHammer is one of the most critical security threats in modern DRAM. The industry has introduced Per-Row Activation Counting (PRAC) to monitor activations, but this approach degrades performance by lengthening critical DRAM timing parameters. We propose TRAC (Transparent Row Activation Counting), a lightweight monitoring architecture that eliminates these drawbacks. TRAC leverages ACT-triggered update, robust in-subarray processing, and a Linear Feedback Shift Register (LFSR)-based counter to track activations transparently, without introducing timing overhead. Circuit-level simulations and system-level evaluations demonstrate TRAC's correctness, stability, and negligible area cost, establishing it as a practical and scalable defense against RowHammer.
Event Type
Research Manuscript
TimeTuesday, July 2811:10am - 11:23am PDT
LocationMtg Room 202AB