云计算中属性基加密机制研究

Research on Attribute Based Encryption Scheme in Cloud Computing

云计算成为当前实现信息共享主流形式,但云计算平台的开放性、终端分布的不均匀性及网络互联的复杂性等特点,使得其比以往更容易遭受诸如病毒感染、信息泄露等网络攻击.为了确保用户数据不被非法访问,通常将数据加密后存储在云端,传统的加密机制无法满足云计算等新型环境下1对多细粒度访问控制的需求.从属性基加密机制基本原理入手,对云计算环境下属性基加密机制进行了系统研究,并对其安全性进行了深入的比较分析.

Cloud computing has become the mainstream form of information sharing at present,but the openness of cloud computing platform,the uneven distribution of terminals and the complexity of network interconnection make it more vulnerable to network attacks such as virus infection and information leakage than in the past.In order to ensure that user data is not illegally accessed,the data is usually encrypted and then stored in the cloud.The traditional encryption mechanism can not meet the needs of one-to-many and fine-grained access control in new environment such as cloud computing.Based on the basic principle of attribute-based encryption mechanism,attribute-based encryption mechanism in cloud computing is systematically studied in this paper,and then its security is compared and analyzed in depth.