移动云环境下高效属性基加密方案研究

Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-06-19 Cooperative journals: 《计算机应用研究》

付雨萌 孙磊 李作辉

Abstract： With the popularity of cloud computing, mobile devices can store and retrieve personal data anytime and anywhere. Attribute based encryption can be used to solve the problem of mobile cloud data security. At present, the research on attribute based encryption adapting to mobile cloud is mainly focused on single authority, which does not satisfy the real property authorization situation. This paper proposed a new multi-authority attribute based encryption scheme with no central authority, each authority in the scheme could not affect each other and attributes could be added independently. In addition, the scheme uses precomputation and outsourcing decryption to reduce the computation cost of the user side. Besides, the scheme was static secure under the random oracle model. Experimental results show that the scheme can reduce the computation cost of the user side by 20%, and it is more consistent with the data sharing application scenario in the mobile cloud environment.

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