Entanglement Enhances Security in Secret Sharing

Rafal Demkowicz-Dobrzanski; Aditi Sen De; Ujjwal Sen; Maciej Lewenstein

doi:10.1103/PhysRevA.80.012311

Entanglement Enhances Security in Secret Sharing

Quantum Physics 2009-10-20 v1

Authors: Rafal Demkowicz-Dobrzanski , Aditi Sen De , Ujjwal Sen , Maciej Lewenstein

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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.

Keywords

quantum key distribution quantum entanglement quantum cryptography

Cite

@article{arxiv.0802.1811,
  title  = {Entanglement Enhances Security in Secret Sharing},
  author = {Rafal Demkowicz-Dobrzanski and Aditi Sen De and Ujjwal Sen and Maciej Lewenstein},
  journal= {arXiv preprint arXiv:0802.1811},
  year   = {2009}
}

Comments

5 pages, 1 figure, RevTeX4

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