Karol Lukanowski, Maria Balanz'o-Juand'o, M. Farkas, A. Ac'in, Jan Kolody'nski
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Upper Bounds on Key Rates in Device-Independent Quantum Key Distribution Based on Convex-Combination Attacks
We provide an efficient, generic tool for upper-bounding key rates in device-independent quantum key distribution (DIQKD) and prove that Bell nonlocality is not suf-ficient for the security of standard DIQKD protocols.