| Eavesdropping on the Orderly-Encrypting Multiparty Quantum Secret Sharing Protocols |
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| 作者姓名： | QIN Sujuan WEN Qiaoyan ZHU Fuchen |
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| 作者单位： | [1]School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]National Laboratory for Modern Communications, Chengdu 610041, Sichuan, China |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 0 IntroductionSuppose the president of a bank,Alice,wantsto give ac-cess to a vault to two vice-presidents ,Bob and Charlie,whomshe does not entirely trust .Instead of givingthe secretto any one of them,she may desire to distribute the informa-tioninsuch a waythat no vice-president alone has any knowl-edge of the secret ,but both of themcanjointly determine thesecret .Cryptography provides the answer to this question inthe formof secret sharing1 ,2],where secret messages are dis-tributed amo…
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| 关 键 词： | 量子秘密共享 纠缠状态 保密通信 偷听 电铃测量 |
| 文章编号： | 1007-1202（2006）06-1593-04 |
| 收稿时间： | 2006-04-20 |
Eavesdropping on the orderly-encrypting multiparty quantum secret sharing protocols |
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| QIN Sujuan WEN Qiaoyan ZHU Fuchen.Eavesdropping on the Orderly-Encrypting Multiparty Quantum Secret Sharing Protocols[J].Wuhan University Journal of Natural Sciences,2006,11(6):1593-1596. |
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| Authors: | Qin Sujuan Wen Qiaoyan Zhu Fuchen |
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| Institution: | (1) School of Science, Beijing University of Posts and Telecommunications, 100876 Beijing, China;(2) National Laboratory for Modern Communications, 610041 Chengdu, Sichuan, China |
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| Abstract: | We discuss the security of the kind of multiparty quantum secret sharing protocols encrypting in series. It is secure against the eavesdroppers outside. However it is weak to withstand the attack of insider with a fake signal and cheating. An idiographic attack strategy is given based on the protocol. Furthermore, we conclude the key leak of the protocols and present a possible way to prevent the dishonest agents from stealing the secret. |
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| Keywords: | quantum secret sharing bell measurement entangled state |
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