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Zeroization, part 1: Wiping can make things worse

Lobsters Hottest ↗ · 2026-10-07 Cached

技术博客文章探讨了在C代码中对秘密数据进行零化(memset/secure_zero)的常见做法为何可能适得其反:编译器优化会删除memset,而volatile字节写入或不透明的wipe函数反而可能引入新的秘密副本并让其残留在寄存器中。

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