Practical Position-Based Quantum Cryptography

Abstract : We study a general family of quantum protocols for position verification and present a class of attacks based on the Clifford hierarchy. These attacks outperform current strategies based on port-based teleportation for a large class of practical protocols. We then introduce the interleaved product protocol, a scheme for position verification involving only the preparation and measurement of single qubit states for which the best available attacks have a complexity exponential in the number of classical bits transmitted.
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https://hal.inria.fr/hal-01237233
Contributor : Anthony Leverrier <>
Submitted on : Wednesday, December 2, 2015 - 11:05:14 PM
Last modification on : Tuesday, December 24, 2019 - 3:26:01 PM

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Kaushik Chakraborty, Anthony Leverrier. Practical Position-Based Quantum Cryptography. Physical Review A, American Physical Society, 2015, 92 (5), ⟨10.1103/PhysRevA.92.052304⟩. ⟨hal-01237233⟩

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