RT Journal Article
T1 Analysis of a rate-adaptive reconciliation protocol and the effect of leakage on the secret key rate
A1 Elkouss Coronas, David
A1 Martínez Mateo, Jesús
A1 Martín, Vicente
AB Quantum key distribution performs the trick of growing a secret key in two distant places connected by a quantum channel. The main reason is so that the legitimate users can bound the information gathered by the eavesdropper. In practical systems, whether because of finite resources or external conditions, the quantum channel is subject to fluctuations. A rate-adaptive information reconciliation protocol, which adapts to the changes in the communication channel, is then required to minimize the leakage of information in the classical postprocessing. We consider here the leakage of a rate-adaptive information reconciliation protocol. The length of the exchanged messages is larger than that of an optimal protocol; however, we prove that the min-entropy reduction is limited. The simulation results, both in the asymptotic and in the finite-length regime, show that this protocol allows to increase the amount of a distillable secret key.
PB American Physical Society
SN 1050-2947
YR 2013
FD 2013-04-26
LK https://hdl.handle.net/20.500.14352/33738
UL https://hdl.handle.net/20.500.14352/33738
LA eng
NO Comunidad de Madrid
NO European CHIST-ERA
DS Docta Complutense
RD 7 may 2024