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相关概念视频

Issues And Trends In Healthcare Delivery System01:29

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This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
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一个基于区块链和密码文本的访问控制方案,基于策略属性的加密.

Ronglei Hu1, Ziwei Ma1, Li Li1

  • 1Department of Electronics and Communication Engineering, Beijing Electronic Science and Technology Institute, Beijing 100070, China.

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概括
此摘要是机器生成的。

本研究介绍了一种新的区块链和密码文本政策属性基础加密 (CP-ABE) 方案,用于安全的数据共享. 它提高了效率,并解决了传统CP-ABE系统中的隐私问题.

关键词:
访问控制 访问控制 访问控制区块链区块链区块链区块链区块链密码文本政策 基于属性的加密 (CP-ABE)政策更新 政策更新维护隐私 维护隐私 维护隐私

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科学领域:

  • 密码学和信息安全信息安全
  • 分布式系统和区块链技术

背景情况:

  • 传统的密码文本策略属性基础加密 (CP-ABE) 面临隐私风险和不透明的验证,因为它依赖第三方云提供商进行数据存储和访问控制.
  • 现有的CP-ABE计划在数据共享环境中扎着信任问题和隐私泄露.

研究的目的:

  • 提出一个新的访问控制方案,整合区块链和CP-ABE,以提高数据安全性和数据共享中的隐私.
  • 通过利用区块链的分散性和防改性来解决传统CP-ABE的局限性.
  • 引入一个支持多个授权中心和政策更新的计划.

主要方法:

  • 开发了一个访问控制方案,将区块链技术与密码文本策略属性基础加密 (CP-ABE) 结合起来.
  • 利用区块链的分布式,去中心化和防改功能,建立对数据共享的信任.
  • 实施多个授权中心,并在CP-ABE框架内支持动态的政策更新.

主要成果:

  • 与现有方法相比,拟议的方案显著提高了18%,26%和68%的计算效率.
  • 证明了该方案在选择纯文本攻击 (IND-CPA) 下满足不可辨别性的能力,确保了强大的数据保密性.
  • 成功解决了传统CP-ABE数据共享中固有的信任危机和隐私泄露问题.

结论:

  • 集成的区块链和CP-ABE方案为安全和高效的数据共享提供了强大的解决方案.
  • 区块链的去中心化和防改性质提高了对访问控制的信任和透明度.
  • 拟议的方案为微细的数据访问控制提供了增强的计算性能和安全保证.