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At its core, the SQ7191 exploits the silicon’s inherent physical variations to generate cryptographic keys on demand—keys that are never stored and cannot be duplicated. This PUF-driven approach creates an immutable hardware “root of trust,” inherently resilient to cloning, extraction, and invasive attacks. The PUF demonstrates strong randomness with a 50% Hamming Weight, uniqueness with a normalized Hamming Distance centered at 0.5, and proven reliability test results.