湖南大学学报（自然科学版）Issue(10)：133-140,8.
基于 MA-ABE 的云存储访问控制方法∗
Multi-authority ABE for Access Control in Cloud Storage
摘要
Abstract
In order to improve the security and efficiency of data access control under multi-authority environment,an access-tree based multi-authority ABE (ATB-MAABE)has been proposed in this paper. In ATB-MAABE,CA is only used for public parameters generating and authority verification,which re-duces the security risk introduced by CA.Access control policy is defined by the DO(data owner),and the attribute-based secret key components are generated by DO and different attributes authorities.By using the access tree based control policy,this scheme can prevent the attacks from the user and authority collu-sion.Furthermore,the user's global identifier (GID)is not required in secret key generating,which can support anonymous data control and sharing.Finally,the security proof is given by using the Decisional Bilinear Diffie-Hellman (DBDH )assumption,and the experiment results show the efficiency of this scheme in encryption/decryption operations.关键词
多授权机构/属性加密/访问控制/访问结构树/云存储Key words
multi-authority/Attribute-Based Encryption(ABE)/access control/access tree/cloud storage分类
信息技术与安全科学引用本文复制引用
李谢华,张蒙蒙,刘鸿,王勇军..基于 MA-ABE 的云存储访问控制方法∗[J].湖南大学学报（自然科学版）,2015,(10):133-140,8.基金项目
国家自然科学基金资助项目(61402160),National Natural Science Foundation of China(61402160) （61402160）
教育部高等学校博士学科点专项科研基金资助项目(20124307110014) （20124307110014）
湖南省高校创新平台开放基金资助项目(14K023) （14K023）
