Generalized DC loop current attack against the KLJN secure key exchange scheme
A new attack against the Kirchhoff-Law-Johnson-Noise (KLJN) secure key distribution system is studied with unknown parasitic DC-voltage sources at both Alice’s and Bob’s ends. This paper is the generalization of our earlier investigation with a single-end parasitic source. Under the assumption that...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2019-12-01
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| Series: | Metrology and Measurement Systems |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/114024/PDF/02_MMS_4_INTERNET.pdf |
| _version_ | 1818537134048411648 |
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| author | Mutaz Y. Melhem Laszlo B. Kish |
| author_facet | Mutaz Y. Melhem Laszlo B. Kish |
| author_sort | Mutaz Y. Melhem |
| collection | DOAJ |
| description | A new attack against the Kirchhoff-Law-Johnson-Noise (KLJN) secure key distribution system is studied with unknown parasitic DC-voltage sources at both Alice’s and Bob’s ends. This paper is the generalization of our earlier investigation with a single-end parasitic source. Under the assumption that Eve does not know the values of the parasitic sources, a new attack, utilizing the current generated by the parasitic dc-voltage sources, is introduced. The attack is mathematically analyzed and demonstrated by computer simulations. Simple defense methods against the attack are shown. The earlier defense method based solely on the comparison of current/voltage data at Alice’s and Bob’s terminals is useless here since the wire currents and voltages are equal at both ends. However, the more expensive version of the earlier defense method, which is based on in-situ system simulation and comparison with measurements, works efficiently. |
| first_indexed | 2024-12-11T18:46:50Z |
| format | Article |
| id | doaj.art-7e8d393e38414780b0d6f4ac8fc4ad40 |
| institution | Directory Open Access Journal |
| issn | 2300-1941 |
| language | English |
| last_indexed | 2024-12-11T18:46:50Z |
| publishDate | 2019-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Metrology and Measurement Systems |
| spelling | doaj.art-7e8d393e38414780b0d6f4ac8fc4ad402022-12-22T00:54:26ZengPolish Academy of SciencesMetrology and Measurement Systems2300-19412019-12-01vol. 26No 4607616https://doi.org/10.24425/mms.2019.130571Generalized DC loop current attack against the KLJN secure key exchange schemeMutaz Y. MelhemLaszlo B. KishA new attack against the Kirchhoff-Law-Johnson-Noise (KLJN) secure key distribution system is studied with unknown parasitic DC-voltage sources at both Alice’s and Bob’s ends. This paper is the generalization of our earlier investigation with a single-end parasitic source. Under the assumption that Eve does not know the values of the parasitic sources, a new attack, utilizing the current generated by the parasitic dc-voltage sources, is introduced. The attack is mathematically analyzed and demonstrated by computer simulations. Simple defense methods against the attack are shown. The earlier defense method based solely on the comparison of current/voltage data at Alice’s and Bob’s terminals is useless here since the wire currents and voltages are equal at both ends. However, the more expensive version of the earlier defense method, which is based on in-situ system simulation and comparison with measurements, works efficiently.https://journals.pan.pl/Content/114024/PDF/02_MMS_4_INTERNET.pdfunconditional securitysecure key exchangeparasitic loop currents and voltagesinformation leak |
| spellingShingle | Mutaz Y. Melhem Laszlo B. Kish Generalized DC loop current attack against the KLJN secure key exchange scheme Metrology and Measurement Systems unconditional security secure key exchange parasitic loop currents and voltages information leak |
| title | Generalized DC loop current attack against the KLJN secure key exchange scheme |
| title_full | Generalized DC loop current attack against the KLJN secure key exchange scheme |
| title_fullStr | Generalized DC loop current attack against the KLJN secure key exchange scheme |
| title_full_unstemmed | Generalized DC loop current attack against the KLJN secure key exchange scheme |
| title_short | Generalized DC loop current attack against the KLJN secure key exchange scheme |
| title_sort | generalized dc loop current attack against the kljn secure key exchange scheme |
| topic | unconditional security secure key exchange parasitic loop currents and voltages information leak |
| url | https://journals.pan.pl/Content/114024/PDF/02_MMS_4_INTERNET.pdf |
| work_keys_str_mv | AT mutazymelhem generalizeddcloopcurrentattackagainstthekljnsecurekeyexchangescheme AT laszlobkish generalizeddcloopcurrentattackagainstthekljnsecurekeyexchangescheme |