摘要：

为提高云存储用户数据上传的效率和安全性,提出一种基于多比特重复数据删除的云存储信道隐藏方法。构建包含云存储提供商、受害者和攻击者的交叉用户信道隐藏框架,采用消息的选择上传机制,以消除“0”文件上传的必要性,减少上传文件的数量。同时,为实现多比特隐藏信道无差错解码,提出一种新的同步技术对文件进行时间戳排序,从而提高数据传输的秩序。在云存储服务器SugarSync和BaiduYun中的测试结果,验证了该方法的有效性和安全性。

关键词: 多比特, 重复数据删除, 云存储, 信道隐藏, 时间戳

Abstract:

In order to improve the efficiency and security of data upload for cloud storage users,a cloud storage channel hiding algorithm based on multiple bit repeating data deletion is proposed.A framework for cross user covert channels including cloud storage providers,victims and attackers is built,and the use of the message selection upload mechanism eliminates the need for “0” file upload,so as to reduce the number of uploaded files.At the same time,in order to realize error free decoding of multiple bit covert channel,a new synchronization technique is proposed,which sorts files with time stamp,so as to improve the order of data transmission.Finally,in the cloud storage service SugarSync and BaiduYun,the performance of the proposed algorithm is tested,and the results verify the effectiveness and security of the algorithm.

Key words: multiple bit, repeating data deletion, cloud storage, channel hiding, time stamp

中图分类号: 

• TP391