Abstract
The security of quantum key distribution protocols is guaranteed by the laws of quantum mechanics. However, a precise analysis of the security properties requires tools from both classical cryptography and information theory. Here, we employ recent results in non-asymptotic classical information theory to show that information reconciliation imposes fundamental limitations on the amount of secret key that can be extracted in the finite key regime. In particular, we find that an often used approximation for the information leakage during one-way information reconciliation is flawed and we propose an improved estimate.
Original language | English |
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Title of host publication | 2014 IEEE International Symposium on Information Theory, ISIT 2014 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1469-1473 |
Number of pages | 5 |
ISBN (Print) | 9781479951864 |
DOIs | |
Publication status | Published - 2014 |
Externally published | Yes |
Event | 2014 IEEE International Symposium on Information Theory, ISIT 2014 - Honolulu, HI, United States Duration: 29 Jun 2014 → 4 Jul 2014 |
Conference
Conference | 2014 IEEE International Symposium on Information Theory, ISIT 2014 |
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Country/Territory | United States |
City | Honolulu, HI |
Period | 29/06/14 → 4/07/14 |