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An Elementary Proof of Private Random Number Generation from Bell Inequalities



Carl A. Miller


The field of device-independent quantum cryptography has seen enormous success in the past several years, including security proofs for key distribution and random number generation that account for arbitrary imperfections in the devices used. Full security proofs in the field so far are long and technically deep. In this paper we show that the concept of the mirror adversary can be used to simplify device-independent proofs. We give a short proof that any bipartite Bell violation can be used to generate private random numbers. The proof is based on elementary techniques and is self-contained.
arXiv e-Print archive


quantum cryptography, multiplayer games, nonlocality
Created July 20, 2017, Updated May 1, 2019