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Doctoral thesis
Open access
English

Tight security bounds for quantum key distribution

ContributorsLim, Ci Wen
DirectorsZbinden, Hugoorcid
Defense date2014-06-13
Abstract

Despite the significant progress made in both theoretical and experimental quantum key distribution (QKD), the security of current QKD implementations is still not yet established rigorously. One of the major causes of this impasse is that existing security analyses are strongly dependently on the classical-post-processing block size, and as a consequence, the resulting security bounds are unduly pessimistic. In other words, applying these security bounds to current QKD implementations would severely impair the efficiency of these implementations. In this thesis, we overcome this impasse by providing a novel security framework that allows one to derive tight non-asymtptotic security bounds on a wide range of QKD implementations. This essentially closes the gap between theory and practice of QKD.

eng
Keywords
  • Security proof
  • Quantum cryptography
Citation (ISO format)
LIM, Ci Wen. Tight security bounds for quantum key distribution. 2014. doi: 10.13097/archive-ouverte/unige:39091
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Technical informations

Creation07/03/2014 8:40:00 AM
First validation07/03/2014 8:40:00 AM
Update time03/14/2023 9:29:31 PM
Status update03/14/2023 9:29:31 PM
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