dorsal/arxiv
View SchemaCryptanalysis of a Practical Quantum Key Distribution With Polarization-Entangled Photons
| Authors | Thomas Beth, Joern Mueller-Quade, Rainer Steinwandt |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407130 |
| URL | https://arxiv.org/abs/quant-ph/0407130 |
Abstract
Recently, a quantum key exchange protocol has been described, which served as basis for securing an actual bank transaction by means of quantum cryptography [quant-ph/0404115]. Here we show, that the authentication scheme applied is insecure in the sense that an attacker can provoke a situation where initiator and responder of a key exchange end up with different keys. Moreover, it may happen that an attacker can decrypt a part of the plaintext protected with the derived encryption key.
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"abstract": "Recently, a quantum key exchange protocol has been described, which served as\nbasis for securing an actual bank transaction by means of quantum cryptography\n[quant-ph/0404115]. Here we show, that the authentication scheme applied is\ninsecure in the sense that an attacker can provoke a situation where initiator\nand responder of a key exchange end up with different keys. Moreover, it may\nhappen that an attacker can decrypt a part of the plaintext protected with the\nderived encryption key.",
"arxiv_id": "quant-ph/0407130",
"authors": [
"Thomas Beth",
"Joern Mueller-Quade",
"Rainer Steinwandt"
],
"categories": [
"quant-ph"
],
"title": "Cryptanalysis of a Practical Quantum Key Distribution With Polarization-Entangled Photons",
"url": "https://arxiv.org/abs/quant-ph/0407130"
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