北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2015, Vol. 38 ›› Issue (5): 77-80.doi: 10.13190/j.jbupt.2015.05.014

• 论文 • 上一篇    下一篇

属性基无中央授权中心DMA-ABE方案

陈丹伟1, 吴琼1, 陈林铃1, 潘甦2   

  1. 1. 南京邮电大学 计算机学院, 南京 210003;
    2. 南京邮电大学 通信与信息工程学院, 南京 210003
  • 收稿日期:2014-12-25 出版日期:2015-10-28 发布日期:2015-10-28
  • 作者简介:陈丹伟(1970—),男,教授,E-mail:danweichen@163.com.
  • 基金资助:

    国家自然科学基金项目(61271235)

Attribute-Based Encryption without Central Authority: DMA-ABE

CHEN Dan-wei1, WU Qiong1, CHEN Lin-ling1, PAN Su2   

  1. 1. Department of Computer and Science, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2. Department of Communication and Information Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2014-12-25 Online:2015-10-28 Published:2015-10-28

摘要:

针对当前云环境下属性基访问控制机制中采用中央授权中心带来的安全性问题,提出了分散多机构属性基加密DMA-ABE方案. 该方案采用多个授权中心负责用户密钥的分发,无需中央授权中心的协调;支持任意的线性秘密共享方案访问结构,访问策略灵活;采用代理重加密进行属性的即时撤销和授权,支持高效、灵活、细粒度的访问控制.安全性分析证明该方案达到选择明文攻击安全.

关键词: 属性基加密, 代理重加密, 属性撤销和授权

Abstract:

A scheme decentralizing multi-authority attribute based encryption DMA-ABE was proposed. In this scheme, the multiple attribute authority was used to issue users' keys without any coordination of central authority. Any linear secret sharing schemes access structure was supported, which is efficient, flexibility and fine-grained. The proxy re-encryption was used to realize on-demand attribute revocation and authorization. A security analysis was given to verify the scheme is secure against chosen plain-text attack.

Key words: attribute-based encryption, proxy re-encryption, attribute revocation and grant

中图分类号: