Device-Independent Relativistic Quantum Bit Commitment

Authors

Emily Adlam, Chapman UniversityFollow
Adrian Kent, University of Cambridge

Document Type

Article

Publication Date

8-4-2015

Abstract

We examine the possibility of device-independent relativistic quantum bit commitment, introducing three relativistic quantum bit commitment schemes that offer device-independent security against hypothetical postquantum adversaries subject only to the no-signaling principle. We discuss the potential threat of location attacks, in which the behavior of untrusted devices used in relativistic quantum cryptography depends on their space-time location and show that our protocols are secure against both location attacks and memory attacks. The protocols are compared to a relativistic classical bit commitment scheme with similar features and we note some advantages for the quantum schemes.

Comments

This article was originally published in Physical Review A, volume 92, in 2015. https://doi.org/10.1103/PhysRevA.92.022315

Recommended Citation

E. Adlam and A. Kent, Device-independent relativistic quantum bit commitment, Phys. Rev. A 92, 022315 (2015). https://doi.org/10.1103/PhysRevA.92.022315