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Determining Key Shape from Sound

🗓️ 24 Mar 2021 11:46:10Reported by Bruce SchneierType 
schneier
 schneier
🔗 www.schneier.com👁 23 Views

Determining key shape from sound. A novel attack, _SpiKey_, uses a smartphone microphone to capture and infer the shape of a physical key by analyzing emitted sounds, thereby reducing the search space for potential keys

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