| 一个高效安全的空间加密方案 |
| |
| 引用本文： | 戚成杰,董晓蕾.一个高效安全的空间加密方案[J].上海交通大学学报,2012,46(9):1361-1365. |
| |
| 作者姓名： | 戚成杰 董晓蕾 |
| |
| 作者单位： | （上海交通大学 计算机科学与工程系， 上海 200240） |
| |
| 基金项目： | 国家自然科学基金资助项目(60970110,61033014,61161140320) |
| |
| 摘 要： | 将空间向量对应于合数群上的元素，基于三素数子群判定问题，利用双系统技术构造了一个在自适应的模型下更加有效、安全的空间加密方案.结果表明，由于不需要进行大量的矩阵运算，所提出的加密方案具有较高的效率和良好的性能.
|
| 关 键 词： | 空间加密 身份基加密 自适应 安全性 合数群 双系统 |
| 收稿时间： | 2011-12-21 |
An Efficient and Secure Spatial Encryption Scheme |
| |
| QI Cheng-jie,DONG Xiao-lei.An Efficient and Secure Spatial Encryption Scheme[J].Journal of Shanghai Jiaotong University,2012,46(9):1361-1365. |
| |
| Authors: | QI Cheng-jie DONG Xiao-lei |
| |
| Institution: | (Department of Computer and Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
| |
| Abstract: | Spatial encryption was first introduced as an instance of generalized identity-based encryption by Boneh and Hamburg in 2008. Their scheme is only secure in selective model. This paper constructed a full secure and more efficient spatial encryption scheme which differs from Boneh and Hamburg’s scheme. The paper introduces a technique to map a vectors to elements of groups. Then it applies the dual system technique. With this technique and the three composite order bilinear groups decision problem, it can prove full security of the scheme in adaptive model. Because of only computing in composite groups without matrix, the efficiency of the scheme is much improved.
Key words： |
| |
| Keywords: | spatial encryption identity based encryption self-adaption security composite order group dual system |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《上海交通大学学报》浏览原始摘要信息 |
| 点击此处可从《上海交通大学学报》下载免费的PDF全文 |
