SSEM: Secure, scalable and efficient multi-owner data sharing in clouds
SSEM: Secure, scalable and efficient multi-owner data sharing in clouds
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DOI：
10.1109/cc.2016.7563726
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发表时间：
2016-09
影响因子：
4.1
通讯作者：
Shungan Zhou;Ruiying Du;J. Chen;Hua Deng;Jian Shen;Huanguo Zhang
中科院分区：
文献类型：
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作者：
Shungan Zhou;Ruiying Du;J. Chen;Hua Deng;Jian Shen;Huanguo Zhang
数据共享是云计算的主要应用。一些现有的解决方案被提议为云中的外包数据提供灵活的访问控制。然而，当多个数据所有者希望共享他们的私人数据用于合作目的时，很少有人关注面向组的数据共享。在本文中，我们提出了一个新的范例，称为安全，可扩展和高效的多所有者（SSEM）的云数据共享。SSEM集成了基于身份的加密和非对称组密钥协商，以实现多对多共享模式下数据所有者的面向组的访问控制。此外，使用SSEM，用户可以方便地加入或离开组，同时保护组数据和用户数据的隐私。我们提出了密钥-密文同态技术来构造一个短密文的SSEM方案。安全性分析表明，我们的SSEM方案实现了数据安全未经授权的访问和共谋攻击。理论和实验结果都证实了我们提出的方案需要用户很少的成本，以组的方式共享和访问外包数据。
Data sharing is a main application of cloud computing. Some existing solutions are proposed to provide flexible access control for outsourced data in the cloud. However, few attentions have been paid to group-oriented data sharing when multiple data owners want to share their private data for cooperative purposes. In this paper, we put forward a new paradigm, referred to as secure, scalable and efficient multi-owner (SSEM) data sharing in clouds. The SSEM integrates identity-based encryption and asymmetric group key agreement to enable group-oriented access control for data owners in a many-to-many sharing pattern. Moreover, with SSEM, users can join in or leave from the group conveniently with the privacy of both group data and user data. We proposed the key-ciphertext homomorphism technique to construct an SSEM scheme with short ciphertexts. The security analysis shows that our SSEM scheme achieves data security against unauthorized accesses and collusion attacks. Both theoretical and experimental results confirm that our proposed scheme takes users little costs to share and access outsourced data in a group manner.