基于改进CP-ABE算法的移动云计算数据安全访问控制方法（英文）

A secure access control method for mobile cloud computing data based on improved CP-ABE algorithm

为了提高云计算数据访问的安全性及高效性,采用改进的CP-ABE算法来实现移动云计算数据访问控制。该方案将文件按不同的访问权限进行分级管理,将每种访问权限定义为一个权限模型,接着对多个权限模型结构进行整合。这种方案对密文的处理采用分享式的模式,所有权限模型均可共享该密文,有效减少每个权限模型存储密文的时间成本。实验结果显示,提出的分享式密文方案在加密和解密过程中可以有效减少时间开销,具有较强的应用价值。

In order to improve the security and efficiency of cloud computing data access,the improved CP-ABE algorithm is adopted to control the mobile cloud computing data access.The scheme classifying files according to different access rights,defining each access right as a permissions model,and then integrating multiple permissions model structures.This scheme adopts the shared mode for the ciphertext processing,and all the ciphertext models share the ciphertext so as to effectively reduce the time cost of storing the ciphertext for each rights model. Experimental results show that the proposed shared ciphertext scheme could effectively reduce the time overhead in the encryption and decryption process,and it has significant application value.