基于等级密钥管理的云外包数据安全共享技术

Cloud outsourced data security sharing technology based on hierarchical key management

针对目前云外包数据的全共享以及访问群组等级结构复杂等问题,提出了一种基于线性几何等级密钥管理的云外包数据共享技术.阐述了等级密钥管理原理,同时设计了线性几何等级密钥管理技术方案以及三条规则.对系统构建算法、密钥派生算法以及动态密钥管理进行了详细的设计分析,并对算法进行了实验验证,验证结果表明该方案是安全且相对非常有效的.

Aiming at such problems as the full sharing of cloud outsourced data and the complex hierarchical structure of access groups,a cloud outsourced data sharing technology based on the linear geometric hierarchical key management was proposed.The principle of hierarchical key management was described.Meanwhile,the linear geometric hierarchical key management technology and three rules were designed.The system construction algorithm,key derivation algorithm and dynamic key management were described and analyzed,and the proposed algorithm was verified with the experiment.The verification results show that the proposed scheme is safe and relatively effective.