<ul data-eligibleForWebStory="false"><li>A new hardware security approach called Concealable PUF utilizes commercial 3D NAND flash memory to store and hide encryption keys beneath user data, only revealing them when needed.</li><li>The technique involves a weak application of the GIDL erase process, making each chip's characteristics unique and unpredictable, creating secure, unclonable keys without requiring structural or circuit changes.</li><li>Concealable PUF technology passed stress tests and withstood machine learning-based attacks, proving its stability and effectiveness in hiding and revealing keys over 100 times without errors.</li><li>The innovation allows for easy implementation of hardware-level security in mainstream consumer electronics without added cost or complexity, potentially enhancing security and efficiency in industries like IoT, mobile, and automotive electronics.</li></ul>

This surprisingly simple way to hide hardware security keys in mainstream flash memory could pave the way for ultra-secure storage very soon

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