| The Braid-Based Bit Commitment Protocol |
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| 作者姓名： | 王励成 曹珍富 曹锋 钱海峰 |
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| 作者单位： | Dept. of Computer Science and Eng. Shanghai Jiaotong Univ. Shanghai 200030 China，Dept. of Computer Science and Eng. Shanghai Jiaotong Univ. Shanghai 200030 China，Dept. of Computer Science and Eng. Shanghai Jiaotong Univ. Shanghai 200030 China，Dept. of Computer Science and Eng. Shanghai Jiaotong Univ. Shanghai 200030 China |
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| 基金项目： | NationalNaturalScienceFoundationofChina(Nos.60225007,60572155)andScienceandTechnologyResearchProjectofShanghai(Nos.04JC14055,04DZ07067) |
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| 摘 要： | Introduction Theprimitiveofbitcommitmentcanbeim-plicitlytracedbacktoveryearlyworksbyRa-bin1],Blum2],andShamiretal3].Itsbasicsce-nariois:AlicecansendaprooftoBobthatcom-mitshertoabitb(0or1)ofherchoiceinsucha waythatBobcannottellwhatbis(commit phase),butlaterAlicecanopenthecommitment andprovehimwhatboriginallywas(openphase).Abitcommitmentschemeissaidtobebindingif thepromisee(Alice)hasnochancetocheat,i.e.,shecannotopentheoppositeofheroriginalcom-mitment.Wecallabitcommitmenthidingifthe commi…
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| 关 键 词： | 协议 量子 密码技术 承诺 |
| 文章编号： | 1007-1172（2006）02-0200-05 |
| 收稿时间： | 2005-12-15 |
The Braid-Based Bit Commitment Protocol |
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| WANG Li-cheng,CAO Zhen-fu,CAO Feng,QIAN Hai-feng.The Braid-Based Bit Commitment Protocol[J].Journal of Shanghai Jiaotong university,2006,11(2):200-204. |
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| Authors: | WANG Li-cheng CAO Zhen-fu CAO Feng QIAN Hai-feng |
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| Abstract: | With recent advances of quantum computation, new threats have closed in upon to the classical public key cryptosystems. In order to build more secure bit commitment schemes, this paper gave a survey of the new coming braid-based cryptography and then brought forward the first braid-based bit commitment protocol. The security proof manifests that the proposed protocol is computationally binding and information-theoretically hiding. Furthermore, the proposed protocol is also invulnerable to currently known quantum attacks. |
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| Keywords: | bit commitment braid-based cryptography quantum attacks |
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