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Subject: Physics
Title:
eavesdropping and improvement to multiparty quantum secret sharing with collective eavesdropping-check
Author: Liu Bin ; Gao Fei ; Wen Qiao-Yan
Keyword: Quantum secret sharing ; Entanglement swapping ; Collective eavesdropping-check
Source: INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Issued Date: 2012
Volume: 51, Issue:4, Pages:1211-1223
Indexed Type: SCI
Department: Liu Bin; Gao Fei; Wen Qiao-Yan Beijing Univ Posts & Telecommun State Key Lab Networking & Switching Technol Beijing 100876 Peoples R China. Liu Bin; Gao Fei; Wen Qiao-Yan Beijing Univ Posts & Telecommun Chinese Acad Sci Inst Software State Key Lab Informat Secur Beijing 100876 Peoples R China.
Sponsorship: NSFC 60873191, 60903152, 61003286, 60821001; NCET NCET-10-0260; SRFDP 200800131016, 20090005110010; Beijing Nova Program 2008B51; Chinese Ministry of Education 109014; Beijing Natural Science Foundation 4112040; Fundamental Research Funds for the Central Universities BUPT2011YB01, BUPT2011RC0505
Abstract: Because quantum devices are expensive, quantum secret sharing protocols with collective eavesdropping-check are more efficient and easier to realize than protocols employing step-by-step detection. In a recent paper (Lin et al. in Opt. Commun. 282:4455, 2009), put forward a quantum secret sharing protocol with collective eavesdropping-check. However, Gao found the four-party protocol of Lin et al. is insecure in the sense that two dishonest agents may collaborate to eavesdrop half of Alice's secret without introducing any error (Gao in Opt. Commun. 283:2997, 2010). We point that there is a grievous mistake in Gao's attack strategy and the two agents can only get one eighth of, not half of, Alice's secret. In this paper, we study the properties of entanglement swapping and improve Gao's eavesdropping strategy so that two dishonest agents can get all of Alice's secret. Also we improve Lin et al.'s quantum secret sharing protocol against such attack.
English Abstract: Because quantum devices are expensive, quantum secret sharing protocols with collective eavesdropping-check are more efficient and easier to realize than protocols employing step-by-step detection. In a recent paper (Lin et al. in Opt. Commun. 282:4455, 2009), put forward a quantum secret sharing protocol with collective eavesdropping-check. However, Gao found the four-party protocol of Lin et al. is insecure in the sense that two dishonest agents may collaborate to eavesdrop half of Alice's secret without introducing any error (Gao in Opt. Commun. 283:2997, 2010). We point that there is a grievous mistake in Gao's attack strategy and the two agents can only get one eighth of, not half of, Alice's secret. In this paper, we study the properties of entanglement swapping and improve Gao's eavesdropping strategy so that two dishonest agents can get all of Alice's secret. Also we improve Lin et al.'s quantum secret sharing protocol against such attack.
Language: 英语
WOS ID: WOS:000302693200023
Citation statistics:
Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/15088
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
Liu Bin,Gao Fei,Wen Qiao-Yan. eavesdropping and improvement to multiparty quantum secret sharing with collective eavesdropping-check[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,2012-01-01,51(4):1211-1223.
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