Entanglement Enhances Security in Secret Sharing
arXiv:0802.1811 · doi:10.1103/PhysRevA.80.012311
Abstract
We analyze tolerable quantum bit error rates in secret sharing protocols, and show that using entangled encoding states is advantageous in the case when the eavesdropping attacks are local. We also provide a criterion for security in secret sharing -- a parallel of the Csiszar-Korner criterion in single-receiver cryptography.
5 pages, 1 figure, RevTeX4
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