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arXiv · 1504.00944

Device-Independent Relativistic Quantum Bit Commitment

Emily Adlam·Adrian Kent
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Abstract

We examine the possibility of device-independent relativistic quantum bit commitment. We note the potential threat of {\it location attacks}, in which the behaviour of untrusted devices used in relativistic quantum cryptography depends on their space-time location. We describe relativistic quantum bit commitment schemes that are immune to these attacks, and show that these schemes offer device-independent security against hypothetical post-quantum adversaries subject only to the no-signalling principle. We compare a relativistic classical bit commitment scheme with similar features, and note some possible advantages of the quantum schemes.

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Emily Adlam, Adrian Kent. 2015-04-03. Device-Independent Relativistic Quantum Bit Commitment. https://doi.org/10.1103/physreva.92.022315

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