Encrypted data sharing with multi-owner based on digital rights management in online social networks

Q4 Computer Science
Qin-long HUANG , Jing-yi FU , Zhao-feng MA , Yi-xian YANG , Xin-xin NIU
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引用次数: 2

Abstract

The online social networks (OSNs) offer attractive means for social interactions and data sharing, as well as raise a number of security and privacy issues. Although current solutions propose to encrypt data before sharing, the access control of encrypted data has become a challenging task. Moreover, multiple owners may enforce different access policy to the same data because of their different privacy concerns. A digital rights management (DRM) scheme is proposed for encrypted data in OSNs. In order to protect users' sensitive data, the scheme allows users outsource encrypted data to the OSNs service provider for sharing and customize the access policy of their data based on ciphertext-policy attribute-based encryption. Furthermore, the scheme presents a multiparty access control model based on identity-based broadcast encryption and ciphertext-policy attribute-based proxy re-encryption, which enables multiple owners, such as tagged users who appear in a single data, customize the access policy collaboratively, and also allows the disseminators update the access policy if their attributes satisfy the existing access policy. Security analysis and comparison indicate that the proposed scheme is secure and efficient.

在线社交网络中基于数字版权管理的多所有者加密数据共享
在线社交网络(OSNs)为社交互动和数据共享提供了有吸引力的手段,同时也引发了许多安全和隐私问题。虽然目前的解决方案都提出在共享之前对数据进行加密,但是对加密后的数据进行访问控制已经成为一项具有挑战性的任务。此外,由于不同的隐私问题,多个所有者可能对相同的数据实施不同的访问策略。提出了一种对osn中的加密数据进行数字版权管理的方案。为了保护用户的敏感数据,该方案允许用户将加密后的数据外包给osn服务提供商共享,并基于密文-策略属性加密来定制自己的数据访问策略。在此基础上,提出了基于身份的广播加密和基于密文策略属性的代理再加密的多方访问控制模型,使多个所有者(如出现在单个数据中的标记用户)能够协同自定义访问策略,并允许传播者在其属性满足现有访问策略的情况下更新访问策略。安全性分析和比较表明,该方案是安全有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
0.50
自引率
0.00%
发文量
1878
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