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基于密文策略的权重多中心属性加密方案 被引量：3

Weighted multi-authority attribute encryption based on ciphertext policy
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摘要 针对已有的云存储方案无法有效支持多授权中心和属性权重的问题,提出了一种基于密文策略的多授权中心权重属性加密方案。利用伪随机函数在各个授权中心之间共享一个秘密参数,实现无可信中心的多授权中心机制。通过对来自所有授权中心的属性进行基于权重的分割,实现基于权重的加解密。分析表明,新方案是安全的,可以抵抗恶意用户和授权中心的合谋攻击,并可用于实现针对云存储的安全访问控制。 Most of existing cloud storage solutions can not support multi-authority and weight of attributes,so the weighted multi-authority attribute encryption based on ciphertext policy is proposed.The multi-authority ABE without a central authority is realized by apseudo-random function that shares a secret parameter among each authority.Encryption and decryption based on weighted attribute is achieved through weight-based segmentation of the attributes from all the authorization centers.Analysis result shows that the scheme is safe,which can resist the collusion attack from malicious users and authorized centers and control the secure access of cloud storage.
作者 陈文聪 张应辉 郑东
机构地区 西安邮电大学无线网络安全技术国家工程实验室 中国科学院信息安全国家重点实验室
出处 《桂林电子科技大学学报》 2015年第5期386-390,共5页 Journal of Guilin University of Electronic Technology
基金 国家自然科学基金(61272037 61402366) 陕西省自然科学基础研究计划(2013JZ020 2015JQ6236) 陕西省国际科技合作与交流计划(2015KW-010) 西安邮电大学研究生创新基金(CXL2014-10 CXL2014-04)
关键词 属性加密 权重 多授权中心 云计算 attribute encryption weighted attribute multi-authority cloud computing
分类号 TP309.2 [自动化与计算机技术—计算机系统结构]
  • 相关文献

参考文献13

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  • 4郑东,赵庆兰,张应辉.密码学综述[J].西安邮电大学学报,2013,18(6):1-10. 被引量：66
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二级参考文献15

  • 1ZHENG Dong,LI Xiangxue,CHEN Kefei.LFSR-based Ring Signature Scheme[J].Chinese Journal of Electronics,2007,16(3):397-400. 被引量：3
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桂林电子科技大学学报
2015年 第5期

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