Efficient reconciliation protocol for discrete-variable quantum key distribution
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Information-theoretically secret key generation for fading wireless channels
IEEE Transactions on Information Forensics and Security
Key extraction from general nondiscrete signals
IEEE Transactions on Information Forensics and Security
Automatic secret keys from reciprocal MIMO wireless channels: measurement and analysis
IEEE Transactions on Information Forensics and Security
Crypto topics and applications II
Algorithms and theory of computation handbook
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Two parties, Alice and Bob, wish to distill a binary secret key out of a list of correlated variables that they share after running a quantum key distribution (QKD) protocol based on continuous-spectrum quantum carriers. We present a novel construction that allows the legitimate parties to get equal bit strings out of correlated variables by using a classical channel, with as little leaked information as possible. This opens the way to securely correcting nonbinary key elements. In particular, the construction is refined to the case of Gaussian variables as it applies directly to recent continuous-variable protocols for QKD.