Quantum key distribution with finite resources: Secret key rates via Renyi entropies
Journal Article
·
· Physical Review. A
- Institute for Theoretical Physics III, Heinrich-Heine-universitaet Duesseldorf, D-40225 Duesseldorf (Germany)
A realistic quantum key distribution (QKD) protocol necessarily deals with finite resources, such as the number of signals exchanged by the two parties. We derive a bound on the secret key rate which is expressed as an optimization problem over Renyi entropies. Under the assumption of collective attacks by an eavesdropper, a computable estimate of our bound for the six-state protocol is provided. This bound leads to improved key rates in comparison to previous results.
- OSTI ID:
- 22068666
- Journal Information:
- Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Phase-remapping attack in practical quantum-key-distribution systems
Attacking a practical quantum-key-distribution system with wavelength-dependent beam-splitter and multiwavelength sources
Information-theoretic security proof for quantum-key-distribution protocols
Journal Article
·
Thu Mar 15 00:00:00 EDT 2007
· Physical Review. A
·
OSTI ID:22068666
+1 more
Attacking a practical quantum-key-distribution system with wavelength-dependent beam-splitter and multiwavelength sources
Journal Article
·
Thu Dec 15 00:00:00 EST 2011
· Physical Review. A
·
OSTI ID:22068666
+9 more
Information-theoretic security proof for quantum-key-distribution protocols
Journal Article
·
Fri Jul 15 00:00:00 EDT 2005
· Physical Review. A
·
OSTI ID:22068666