The purpose of this document is to study the security properties of the Silver Bullet algorithm against worst-case RowHammer attacks. We mathematically demonstrate that Silver Bullet, when properly configured and implemented in a DRAM chip, can securely prevent RowHammer attacks. The demonstration focuses on the most representative implementation of Silver Bullet, the patent claiming many implementation possibilities not covered in this demonstration. Our study concludes that Silver Bullet is a promising RowHammer prevention mechanism that can be configured to operate securely against RowHammer attacks at various efficiency-area tradeoff points, supporting relatively small hammer count values (e.g., 1000) and Silver Bullet table sizes (e.g., 1.06KB).

中文翻译：

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预防RowHammer的银弹技术安全性分析

本文档的目的是研究 Silver Bullet 算法对最坏情况 RowHammer 攻击的安全特性。我们从数学上证明 Silver Bullet 在 DRAM 芯片中正确配置和实施时，可以安全地防止 RowHammer 攻击。该演示侧重于 Silver Bullet 最具代表性的实现，该专利声称本演示中未涵盖的许多实现可能性。我们的研究得出结论，Silver Bullet 是一种很有前途的 RowHammer 预防机制，可以配置为在各种效率区域权衡点安全地抵御 RowHammer 攻击，支持相对较小的锤子计数值（例如，1000）和 Silver Bullet 表大小（例如，1.06 KB）。