Countering detector manipulation attacks in quantum communication through detector self-testing
In practical quantum key distribution systems, imperfect physical devices open security loopholes that challenge the core promise of this technology. Apart from various side channels, a vulnerability of single-photon detectors to blinding attacks has been one of the biggest concerns and has been add...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-01-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0233772 |
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| _version_ | 1832542796500697088 |
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| author | Lijiong Shen Christian Kurtsiefer |
| author_facet | Lijiong Shen Christian Kurtsiefer |
| author_sort | Lijiong Shen |
| collection | DOAJ |
| description | In practical quantum key distribution systems, imperfect physical devices open security loopholes that challenge the core promise of this technology. Apart from various side channels, a vulnerability of single-photon detectors to blinding attacks has been one of the biggest concerns and has been addressed both by technical means as well as advanced protocols. In this work, we present a countermeasure against such attacks based on self-testing of detectors to confirm their intended operation without relying on specific aspects of their inner working and to reveal any manipulation attempts. We experimentally demonstrate this countermeasure with a typical InGaAs avalanche photodetector, but the scheme can be easily implemented with any single photon detector. |
| format | Article |
| id | doaj-art-cd812f7b93ce446a94b78fae1746280c |
| institution | Kabale University |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-cd812f7b93ce446a94b78fae1746280c2025-02-03T16:36:22ZengAIP Publishing LLCAPL Photonics2378-09672025-01-01101016106016106-610.1063/5.0233772Countering detector manipulation attacks in quantum communication through detector self-testingLijiong Shen0Christian Kurtsiefer1School of Physics, Hangzhou Normal University, Hangzhou, Zhejiang 311121, ChinaCentre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543In practical quantum key distribution systems, imperfect physical devices open security loopholes that challenge the core promise of this technology. Apart from various side channels, a vulnerability of single-photon detectors to blinding attacks has been one of the biggest concerns and has been addressed both by technical means as well as advanced protocols. In this work, we present a countermeasure against such attacks based on self-testing of detectors to confirm their intended operation without relying on specific aspects of their inner working and to reveal any manipulation attempts. We experimentally demonstrate this countermeasure with a typical InGaAs avalanche photodetector, but the scheme can be easily implemented with any single photon detector.http://dx.doi.org/10.1063/5.0233772 |
| spellingShingle | Lijiong Shen Christian Kurtsiefer Countering detector manipulation attacks in quantum communication through detector self-testing APL Photonics |
| title | Countering detector manipulation attacks in quantum communication through detector self-testing |
| title_full | Countering detector manipulation attacks in quantum communication through detector self-testing |
| title_fullStr | Countering detector manipulation attacks in quantum communication through detector self-testing |
| title_full_unstemmed | Countering detector manipulation attacks in quantum communication through detector self-testing |
| title_short | Countering detector manipulation attacks in quantum communication through detector self-testing |
| title_sort | countering detector manipulation attacks in quantum communication through detector self testing |
| url | http://dx.doi.org/10.1063/5.0233772 |
| work_keys_str_mv | AT lijiongshen counteringdetectormanipulationattacksinquantumcommunicationthroughdetectorselftesting AT christiankurtsiefer counteringdetectormanipulationattacksinquantumcommunicationthroughdetectorselftesting |