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完全安全的基于属性的广播加密方案
  • ISSN号：1001-2400
  • 期刊名称：西安电子科技大学学报
  • 时间：0
  • 页码：23-28
  • 分类：TN918.1[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：[1]西安电子科技大学计算机网络与信息安全教育部重点实验室,陕西西安710071, [2]西安理工大学理学院数学系,陕西西安710054
  • 相关基金：973资助项目（2007CB311201）;国家自然科学基金资助项目（60970119,60833008）;陕西省教育厅自然科学基金资助项目（11JK0505）
  • 相关项目：流密码的设计与分析
作者： 孙瑾|胡予濮|
关键词： 双系统密码, 基于属性的密码, 广播加密, 可证明安全, dual system encryption, attribute-based cryptography, broadcast encryption, provably secure
中文摘要：

针对现有的广播加密方案效率与安全性难以兼顾的事实，利用Waters双系统密码技术及基于属性的密码系统，提出一个双系统密码技术下的基于属性的广播加密方案．该方案建立在标准模型下，通过对混合阶群双线性运算的正交性和向量属性的运用，成就了短的尺寸固定的密文，具有较高的计算效率与存储效率．该方案的安全性依赖于3个简单的静态假设，安全性证明显示该方案达到了完全安全性的高安全要求级别．

英文摘要：

According to the broadcast encryption scheme with wide applications in the real world but to the fact that its security and efficiency can not be taken into consideration in the model simultaneously, a fully secure attribute-based broadcast encryption scheme is proposed by combining Waters dual system encryption and attribute-based cryptography. Based on the standard model, by using the orthogonality property of composite-order bilinear groups and the attribute vector, the scheme can achieve constant-size ciphertext which constrains four group exponents. The scheme is proved by using three static assumptions which do not depend on the number of queries the attacker makes. Furthermore, the analytical results indicate that the scheme of this paper is fully secure and can satisfy the higher efficiency and practical requirement.

同期刊论文项目
流密码的设计与分析
期刊论文 140 会议论文 17 专利 1 著作 1
新型公钥广播加密的设计与分析
期刊论文 68 会议论文 10
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期刊信息
  • 《西安电子科技大学学报》
  • 中国科技核心期刊
  • 主管单位:中华人民共和国教育部
  • 主办单位:西安电子科技大学
  • 主编：廖桂生
  • 地址：西安市太白南路2号349信箱
  • 邮编：710073
  • 邮箱：xuebao@mail.xidian.edu.cn
  • 电话：029-88202853
  • 国际标准刊号：ISSN：1001-2400
  • 国内统一刊号：ISSN：61-1076/TN
  • 邮发代号:
  • 获奖情况:
  • 曾13次荣获省部级优秀期刊荣誉和优秀编辑质量奖,2006年荣获首届中国高校优秀科技期刊奖
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  • 被引量:12591