现代电子技术2016，Vol.39Issue(21)：1-6,10,7.DOI:10.16652/j.issn.1004-373x.2016.21.001
一种改进的云存储平台权限管理机制设计
Design of an improved privilege management mechanism for cloud storage platform
摘要
Abstract
In order to solve the overhead computing and bandwidth,and high complexity problems existing in user access privilege revoking of cloud storage service,a dynamic re-encryption based cloud storage privilege revoking optimizing (DR-PRO)mechanism was designed,which takes the ciphertext access control scheme based on attribute encryption system of cipher-text scheme(CP-ABE)as the theoretical background. The (k,n) threshold scheme is adopted by DR-PRO mechanism to divide the data information into blocks,and select a certain data information block dynamically for re-encryption. The data information block is processed with the sub-algorithms of data division,reconstruction,transmission and extraction successively to accom-plish the realization process of user access privilege revoking. The theoretical analysis and experimental evaluation results show that,on the premise of ensuring the high data security of cloud storage service user,the DR-PRO mechanism reduced the over-head computing and bandwidth of the user access control privilege revoking efficiently,and its performance and efficiency were optimized and improved further.关键词
云存储/密文访问控制/权限撤销/动态重加密/CP-ABE/DR-PROKey words
cloud storage/ciphertext access control/privilege revoking/dynamic re-encryption/CP-ABE/DR-PRO分类
信息技术与安全科学引用本文复制引用
卜质琼,郑波尽..一种改进的云存储平台权限管理机制设计[J].现代电子技术,2016,39(21):1-6,10,7.基金项目
广东省自然科学基金项目(S2012030006242) （S2012030006242）
