Fault-injection attacks against cryptographic devices have been studied in great detail. As a countermeasure to such attacks, the flush code eraser (FCE) has been proposed. The FCE realizes a new attack reaction in which sensitive data in a cryptographic device are quickly invalidated by redistributing the electrons in the circuits. In this letter, we discuss the abilities of the FCE by evaluating the data invalidation period with experiments using a test chip. As a result, the invalidation period is estimated to be approximately 80 ps, which enhances the security of the cryptographic device and also prevents the possibility of the future attacks.

中文翻译：

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Flush Code Eraser：快速攻击响应使加密敏感数据无效

针对密码设备的故障注入攻击已经得到了非常详细的研究。作为对此类攻击的对策，已经提出了刷新代码擦除器（FCE）。FCE 实现了一种新的攻击反应，通过重新分配电路中的电子，使密码设备中的敏感数据迅速失效。在这封信中，我们通过使用测试芯片的实验评估数据失效期来讨论 FCE 的能力。因此，估计失效周期约为 80 ps，这增强了密码设备的安全性，也防止了未来攻击的可能性。