Can Two-Way Direct Communication Protocols Be Considered Secure?
Abstract We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the message mode and that the mutual information between the sender and the receiver is...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-09-01
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| Series: | Nanoscale Research Letters |
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| Online Access: | http://link.springer.com/article/10.1186/s11671-017-2314-3 |
| _version_ | 1797765669845991424 |
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| author | Mladen Pavičić |
| author_facet | Mladen Pavičić |
| author_sort | Mladen Pavičić |
| collection | DOAJ |
| description | Abstract We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the message mode and that the mutual information between the sender and the receiver is always constant and equal to one. It follows that recent proofs of security for two-way protocols cannot be considered complete since they do not cover the considered attacks. |
| first_indexed | 2024-03-12T20:14:27Z |
| format | Article |
| id | doaj.art-36af461d1a814e8fb43ab2018b54cfd5 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T20:14:27Z |
| publishDate | 2017-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-36af461d1a814e8fb43ab2018b54cfd52023-08-02T01:27:29ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2017-09-011211610.1186/s11671-017-2314-3Can Two-Way Direct Communication Protocols Be Considered Secure?Mladen Pavičić0Center of Excellence for Advanced Materials (CEMS), Ruđer Bošković Institute, Research Unit Photonics and Quantum Optics, Zagreb, Croatia and Nanooptics, Department of Physics, Humboldt-Universität zu BerlinAbstract We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the message mode and that the mutual information between the sender and the receiver is always constant and equal to one. It follows that recent proofs of security for two-way protocols cannot be considered complete since they do not cover the considered attacks.http://link.springer.com/article/10.1186/s11671-017-2314-3Quantum cryptographyQuantum key distributionTwo-way communication |
| spellingShingle | Mladen Pavičić Can Two-Way Direct Communication Protocols Be Considered Secure? Nanoscale Research Letters Quantum cryptography Quantum key distribution Two-way communication |
| title | Can Two-Way Direct Communication Protocols Be Considered Secure? |
| title_full | Can Two-Way Direct Communication Protocols Be Considered Secure? |
| title_fullStr | Can Two-Way Direct Communication Protocols Be Considered Secure? |
| title_full_unstemmed | Can Two-Way Direct Communication Protocols Be Considered Secure? |
| title_short | Can Two-Way Direct Communication Protocols Be Considered Secure? |
| title_sort | can two way direct communication protocols be considered secure |
| topic | Quantum cryptography Quantum key distribution Two-way communication |
| url | http://link.springer.com/article/10.1186/s11671-017-2314-3 |
| work_keys_str_mv | AT mladenpavicic cantwowaydirectcommunicationprotocolsbeconsideredsecure |