Quantum data locking for high-rate private communication
We show that, if the accessible information is used as a security quantifier, quantum channels with a certain symmetry can convey private messages at a tremendously high rate, as high as less than one bit below the rate of non-private classical communication. This result is obtained by exploiting th...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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IOP Publishing
2015
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| Online Access: | http://hdl.handle.net/1721.1/97095 https://orcid.org/0000-0002-5227-4009 |
| _version_ | 1826202143965577216 |
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| author | Lupo, Cosmo Lloyd, Seth |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Lupo, Cosmo Lloyd, Seth |
| author_sort | Lupo, Cosmo |
| collection | MIT |
| description | We show that, if the accessible information is used as a security quantifier, quantum channels with a certain symmetry can convey private messages at a tremendously high rate, as high as less than one bit below the rate of non-private classical communication. This result is obtained by exploiting the quantum data locking effect. The price to pay to achieve such a high private communication rate is that accessible information security is in general not composable. However, composable security holds against an eavesdropper who is forced to measure her share of the quantum system within a finite time after she gets it. |
| first_indexed | 2024-09-23T12:02:33Z |
| format | Article |
| id | mit-1721.1/97095 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:02:33Z |
| publishDate | 2015 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/970952022-09-27T23:43:03Z Quantum data locking for high-rate private communication Lupo, Cosmo Lloyd, Seth Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Research Laboratory of Electronics Lupo, Cosmo Lloyd, Seth We show that, if the accessible information is used as a security quantifier, quantum channels with a certain symmetry can convey private messages at a tremendously high rate, as high as less than one bit below the rate of non-private classical communication. This result is obtained by exploiting the quantum data locking effect. The price to pay to achieve such a high private communication rate is that accessible information security is in general not composable. However, composable security holds against an eavesdropper who is forced to measure her share of the quantum system within a finite time after she gets it. United States. Defense Advanced Research Projects Agency. Quiness Program (United States. Army Research Office. Grant W31P4Q-12-1-0019) 2015-05-28T17:30:36Z 2015-05-28T17:30:36Z 2015-03 2015-01 Article http://purl.org/eprint/type/JournalArticle 1367-2630 http://hdl.handle.net/1721.1/97095 Lupo, Cosmo, and Seth Lloyd. “Quantum Data Locking for High-Rate Private Communication.” New Journal of Physics 17, no. 3 (March 1, 2015): 033022. © 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft https://orcid.org/0000-0002-5227-4009 en_US http://dx.doi.org/10.1088/1367-2630/17/3/033022 New Journal of Physics Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Lupo, Cosmo Lloyd, Seth Quantum data locking for high-rate private communication |
| title | Quantum data locking for high-rate private communication |
| title_full | Quantum data locking for high-rate private communication |
| title_fullStr | Quantum data locking for high-rate private communication |
| title_full_unstemmed | Quantum data locking for high-rate private communication |
| title_short | Quantum data locking for high-rate private communication |
| title_sort | quantum data locking for high rate private communication |
| url | http://hdl.handle.net/1721.1/97095 https://orcid.org/0000-0002-5227-4009 |
| work_keys_str_mv | AT lupocosmo quantumdatalockingforhighrateprivatecommunication AT lloydseth quantumdatalockingforhighrateprivatecommunication |