Entangled-state cryptographic protocol that remains secure even if nonlocal hidden variables exist and can be measured with arbitrary precision
arXiv:quant-ph/0501003 · doi:10.1103/PhysRevA.73.034303
Abstract
Standard quantum cryptographic protocols are not secure if one assumes that nonlocal hidden variables exist and can be measured with arbitrary precision. The security can be restored if one of the communicating parties randomly switches between two standard protocols.
Shortened version, accepted in Phys. Rev. A
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