一种混合云环境下安全高效的群数据共享方法

Secure and efficient group data sharing method in hybrid cloud environment

在混合云数据共享中,用户量大,属性多,导致用户端的计算量随着属性数目的增多而增大,影响着群用户之间的云数据共享效率,并且还存在用户的身份隐私及相关属性容易被泄露的风险。针对这些问题进行研究,提出了一种适合混合云环境下安全高效的群数据共享方法。该方法通过使用匿名技术、属性隐藏和计算外包技术相结合,保障用户的身份隐私和属性的安全,降低用户端的计算量。安全性与性能分析和实验结果表明,该方法具有较好的安全性和效率。

In hybrid cloud data sharing,the amount of users and the attributes are large. As a result,the calculation amount of the client increases with the number of attributes,which affects the cloud data sharing efficiency among group users. And there is also a risk of leaking users’ identity privacy and related attributes. To solve these problems,this paper proposed a secure and efficient group data sharing method in hybrid cloud environment. The method combined the use of anonymous technology,attribute-hiding and computational outsourcing technology to ensure the security of the user’s identity privacy and attributes,and reduced the amount of calculations at the user end. Security and performance analysis,and the experimental results show the method has better safety and efficiency.