| n取m不经意传输协议构造研究 |
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| 引用本文： | 陈志德,朱洪.n取m不经意传输协议构造研究[J].小型微型计算机系统,2006,27(3):466-468. |
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| 作者姓名： | 陈志德 朱洪 |
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| 作者单位： | 1. 复旦大学,计算机科学与工程系,上海,200433;复旦大学,智能信息处理开放实验室,上海,200433;福建师范大学,数学与计算机科学学院,福建,福州,350007
2. 复旦大学,计算机科学与工程系,上海,200433;复旦大学,智能信息处理开放实验室,上海,200433 |
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| 基金项目： | 中国科学院资助项目;科技部"攀登计划";上海市科技发展基金;福建省自然科学基金 |
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| 摘 要： | 不经意传输协议是设计其他密码协议的基础，同样，该协议在电子商务中也有很多应用．本文首先以2取1不经意传输协议作为子协议，构造n取1不经意传输协议，再以n取1不经意传输协议为子协议构造n取m不经意传输协议．最后，我们利用在公钥密码系统中，由公钥推导出私钥难这一性质，构造出2取1不经意传输协议，从而得出推论，任意的公钥密码系统都可以用来构造n取m不经意传输协议．
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| 关 键 词： | 不经意传输 公钥密码系统 |
| 文章编号： | 1000-1220（2006）03-0466-03 |
| 收稿时间： | 07 6 2005 12:00AM |
| 修稿时间： | 2005-07-06 |
Construction of m-out-of-n Oblivious Transfer |
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| CHEN Zhi-de,ZHU Hong.Construction of m-out-of-n Oblivious Transfer[J].Mini-micro Systems,2006,27(3):466-468. |
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| Authors: | CHEN Zhi-de ZHU Hong |
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| Affiliation: | 1 Computer Science and Engineering Department, Fudan University, Shanghai 200433, China; 2 Key Laboratory of Intelligent Information Processing, Fudan University, Shanghai 200433, China; 3 School of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350007, China |
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| Abstract: | Oblivious transfer(OT)is used as a key component in many applications of cryptography. In this paper, a1-out-of-n oblivious transfer is constructed based on the sub protocol 1-out-of-2 oblivious transfer;an m-out-of-n oblivious transfer is constructed based on the sub protocol 1-out-of-n oblivious transfer. Finally,a1-out-of-2 oblivious transfer is constructed based on public key system. By this way,any existed public key system can be used to construct m-out-of-n oblivious transfer. |
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| Keywords: | oblivious transfer public key system |
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