A technical paper titled “REGA: Scalable Rowhammer Mitigation with Refresh-Generating Activations” was written by researchers at Computer Security Group (COMSEC), ETH Zurich and Zentel Japan. The paper will be presented at IEEE’s Symposium on Security and Privacy in May 2023.
“With REGA, we propose the first fully in-DRAM mitigation capable of protecting devices independently from their blast diameter. REGA scales gracefully, allowing it to protect devices with very low Rowhammer thresholds of 261 activations with negligible 3.7% performance overhead. This is the first time that such a low threshold has ever been considered. It is ~36 times lower than the minimum threshold reported,” states the ETH Zurich’s COMSEC summary.
Find the technical paper here and on Github. The paper will be presented at IEEE’s Symposium on Security and Privacy in May 2023.
Authors: Michele Marazzi, Flavien Solt, Patrick Jattke, Kubo Takashi and Kaveh Razavi.
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