Finite Key Size Analysis of Two-Way Quantum Cryptography
AbstractQuantum cryptographic protocols solve the longstanding problem of distributing a shared secret string to two distant users by typically making use of one-way quantum channel. However, alternative protocols exploiting two-way quantum channel have been proposed for the same goal and with potential advantages. Here, we overview a security proof for two-way quantum key distribution protocols, against the most general eavesdropping attack, that utilize an entropic uncertainty relation. Then, by resorting to the “smooth” version of involved entropies, we extend such a proof to the case of finite key size. The results will be compared to those available for one-way protocols showing some advantages. View Full-Text
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Shaari, J.S.; Mancini, S. Finite Key Size Analysis of Two-Way Quantum Cryptography. Entropy 2015, 17, 2723-2740.
Shaari JS, Mancini S. Finite Key Size Analysis of Two-Way Quantum Cryptography. Entropy. 2015; 17(5):2723-2740.Chicago/Turabian Style
Shaari, Jesni S.; Mancini, Stefano. 2015. "Finite Key Size Analysis of Two-Way Quantum Cryptography." Entropy 17, no. 5: 2723-2740.