Quantum hacking: Experimental demonstration of time-shift attack against practical quantum-key-distribution systems
نویسندگان
چکیده
منابع مشابه
Time-shift attack in practical quantum cryptosystems
Recently, a new type of attack, which exploits the efficiency mismatch of two single photon detectors (SPD) in a quantum key distribution (QKD) system, has been proposed. In this paper, we propose another “time-shift” attack that exploits the same imperfection. In our attack, Eve shifts the arrival time of either the signal pulse or the synchronization pulse or both between Alice and Bob. In pa...
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Chi-Hang Fred Fung, ∗ Bing Qi, † Kiyoshi Tamaki, ‡ and Hoi-Kwong Lo § Center for Quantum Information and Quantum Control, Department of Electrical & Computer Engineering and Department of Physics, University of Toronto, Toronto, Ontario, Canada NTT Basic Research Laboratories, NTT corporation, 3-1,Morinosato Wakamiya Atsugi-Shi, Kanagawa, 243-0198; CREST, JST Agency, 4-1-8 Honcho, Kawaguchi, Sa...
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Recently, a novel protocol named round-robin differential phase-shift (RRDPS) quantum key distribution [Nature 509, 475(2014)] has been proposed. It can estimate information leakage without monitoring bit error rate. In this paper, we study the performance of RRDPS using heralded single photon source (HSPS) without and with decoy-state method, then compare it with the performance of weak cohere...
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A novel quantum private database query protocol is proposed, based on passive round-robin differential phase-shift quantum key distribution. Compared with previous quantum private database query protocols, the present protocol has the following unique merits: (i) the user Alice can obtain one and only one key bit so that both the efficiency and security of the present protocol can be ensured, a...
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Valerio Scarani , Helle Bechmann-Pasquinucci , Nicolas J. Cerf , Miloslav Dušek , Norbert Lütkenhaus , Momtchil Peev 9 1 Centre for Quantum Technologies and Department of Physics, National University of Singapore, Singapore 2 Group of Applied Physics, University of Geneva, Geneva, Switzerland 3 University of Pavia, Dipartimento di Fisica “A. Volta”, Pavia, Italy 4 UCCI.IT, Rovagnate (LC), Italy...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2008
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.78.042333