Finite key size analysis of two-way quantum cryptography
Quantum 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 adv...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI
2015
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| Online Access: | http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/1/entropy-17-02723.pdf |
| _version_ | 1848783069808427008 |
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| author | Shamsul Shaari, Jesni Mancini, Stefano |
| author_facet | Shamsul Shaari, Jesni Mancini, Stefano |
| author_sort | Shamsul Shaari, Jesni |
| building | IIUM Repository |
| collection | Online Access |
| description | Quantum 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.
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| first_indexed | 2025-11-14T16:15:30Z |
| format | Article |
| id | iium-47019 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:15:30Z |
| publishDate | 2015 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-470192017-08-23T07:01:19Z http://irep.iium.edu.my/47019/ Finite key size analysis of two-way quantum cryptography Shamsul Shaari, Jesni Mancini, Stefano QC Physics Quantum 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. MDPI 2015-04-30 Article PeerReviewed application/pdf en http://irep.iium.edu.my/47019/1/entropy-17-02723.pdf Shamsul Shaari, Jesni and Mancini, Stefano (2015) Finite key size analysis of two-way quantum cryptography. Entropy, 17 (5). pp. 2723-2740. ISSN 1099-4300 http://www.mdpi.com/1099-4300/17/5/2723 10.3390/e17052723 |
| spellingShingle | QC Physics Shamsul Shaari, Jesni Mancini, Stefano Finite key size analysis of two-way quantum cryptography |
| title | Finite key size analysis of two-way quantum cryptography |
| title_full | Finite key size analysis of two-way quantum cryptography |
| title_fullStr | Finite key size analysis of two-way quantum cryptography |
| title_full_unstemmed | Finite key size analysis of two-way quantum cryptography |
| title_short | Finite key size analysis of two-way quantum cryptography |
| title_sort | finite key size analysis of two-way quantum cryptography |
| topic | QC Physics |
| url | http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/1/entropy-17-02723.pdf |