کنفرانس بین المللی محاسبات نرم

صفحه اصلی / ششمین کنفرانس بین المللی محاسبات نرم

Rowhammer Attack Vulnerability Assessment and Development of High-Frequency Self-Correcting Schemes (SCHS) for Next-Generation DDR6 Computer Memory Controllers

نویسندگان :

Ali Pouladi¹

1- سازمان نظام صنفی رایانه ای کشور

کلمات کلیدی :

Hardware Security،DDR6،Rowhammer،Target Row Refresh (TRR)،Self-Correcting Synchronization،Memory Controller

چکیده :

As memory technology advances towards the sixth generation (DDR6) and operating frequencies and data transfer rates increase dramatically, security challenges arising from the Rowhammer effect are expected to persist. While DDR5 memory appeared to increase its resistance by employing more complex Target Row Refresh (TRR) mechanisms, recent research has shown that these mechanisms can be bypassed using self-correcting synchronization attacks, such as the Phoenix attack. This article explores the challenges of Rowhammer attacks in the extremely high-frequency scenarios likely in the DDR6 generation. Given the projected initial data rates of 8800 MT/s and future rates exceeding 17000 MT/s, we hypothesize that DDR6 will face shorter refresh intervals (t_REFI) and increased TRR complexity. Based on this, we propose a framework called High-Frequency Self-Correcting Synchronization (SCHS), which elevates self-correction principles to maintain the coordination of attack patterns against severe timing noise (Jitter) at Gigahertz frequencies. This method relies on the precise, nanosecond-scale detection of missed refresh commands and the dynamic compensation of activation epochs. Simulation results demonstrate that SCHS can significantly boost the success of Rowhammer attacks in a high-frequency environment where DDR5 techniques fail. This work provides strong evidence that TRR-based security solutions are inherently temporary, emphasizing the necessity of using Per-Row Activation Counters as the only sustainable hardware defense.