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基于属性的权重代理重新加密方案,具有分布式多权威属性.

Wenlong Yi1, Chuang Wang1, Sergey Kuzmin2

  • 1School of Software, Jiangxi Agricultural University, Nanchang 330045, China.

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PubMed
概括
此摘要是机器生成的。

本研究介绍了一个权重属性权威多权威代理重新加密 (WAMA-PRE) 方案,以改善安全的云数据共享. WAMA-PRE简化了访问策略,减少了存储需求,提高了安全性和控制.

关键词:
访问控制 访问控制 访问控制属性权威的属性权威是指属性权威的属性.区块链区块链区块链区块链区块链数据安全数据安全分享数据的数据共享.

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科学领域:

  • 云计算安全 云计算安全
  • 密码学 密码学 密码学 密码学
  • 数据共享数据共享

背景情况:

  • 现有的基于属性的代理重新加密方案面临着复杂的访问策略,大量的加密文本存储和集中权威的挑战,危及安全的云数据共享.
  • 这些局限性导致云存储环境中共享数据的安全性较弱和可控性降低.

研究的目的:

  • 提出一个新的权重属性权威多权威代理重新加密 (WAMA-PRE) 方案.
  • 通过简化访问政策,减少加密文本存储和分散权力来解决现有计划的局限性,以提高云数据安全性.

主要方法:

  • 引入了属性权重,以实现多值访问策略,超越二进制表达式.
  • 实施了多权威系统,其中多个属性权威机构和一个中央授权实体共同构建一个密钥.
  • 开发了一个分布式属性权威网络,以加强云存储对攻击的抵抗力.

主要成果:

  • 属性加权将加密文本存储空间减少了50%.
  • 与重新加密相比,代理重新加密可以节省63%的时间.
  • 联合钥匙的建造时间仅为基准方案的1%.
  • 在决定性q-平行BDHE假设下,WAMA-PRE方案证明了CPA安全性.

结论:

  • 在云存储中安全共享数据的现有方法上,WAMA-PRE方案提供了显著的改进.
  • 拟议的方案增强了安全性,减少了存储开销,并通过简化政策和分布式权力提高了效率.
  • WAMA-PRE为云环境中安全数据共享的挑战提供了强大而有效的解决方案.