一种基于雾计算思想的私密性云存储方案

Privacy cloud storage scheme based on fog computing

云存储作为云计算服务的核心应用之一,凭借其庞大的云服务器存储容量吸引了大量用户。然而,在这种存储模式下,用户将数据完全存储在云服务器上从而失去对数据的控制权,存在很大的隐私泄露风险。传统的隐私保护方案通常建立在加密基础上,但这类方法无法有效防范来自服务器内部的攻击,若密码被泄露则数据随之被泄露。提出一种基于雾计算模式的三级安全云存储方案,通过设计的Hash-Solomon编码算法,将少量数据存储在雾服务器及本地,既可以充分利用云服务强大的存储空间,又可以保护数据不被泄露。通过安全性理论分析和实验测试证明了所提方案的可行性,是对现有云存储方案的有力补充。

As one of the core applications in cloud computing field,cloud storage attracts a large number of users depending on its powerful storage capacity.However,in this storage schema,users’data is stored completely in cloud server.In other word,users’right of control on data is lost and users are facing privacy leakage risk.Traditional privacy protection scheme is usually based on encryption technology,but the attack from the inside of cloud server can’t be resisted effectively by these kinds of methods.Once the password gets compromised,users’data will be stolen.In order to solve this problem,a three-level secure cloud storage scheme based on fog computing was proposed and a Hash-Solomon code algorithm was designed.A small part of data was stored in local machine and fog server,which can take full advantage of cloud storage and protect the privacy of data.Through the theoretical safety analysis and experimental test,the feasibility of our scheme is proved,and it is really a powerful supplement to existing cloud storage scheme.