面向增量同步的分块加密算法研究

Research on Block Encryption Algorithm for Incremental Synchronization

云计算中很重要的一点就是安全问题,在云计算平台下使用网络硬盘时,必须考虑它的安全性,用户上传的内容一定要经过加密存储。而现在的网络硬盘通常都是将用户的文档直接存储在网络磁盘中的,在客户端没有进行加密。为了让网络硬盘可以适应当下日益普及的云计算环境,将EVP加密方法与文件切割技术相结合,来完成大文件的分割加密及其补丁的制作,改善了传统网盘的不安全因素。最终文件数据上传到云存储设备中,实现云环境下的网络硬盘功能,同时有效提高了网络硬盘的同步备份效率。

Security is paid more attention to cloud computing,whereas the Network Driver existing exposures security defects with the un encrypted data.In order to adapt Network Driver to the pervasive cloud computing environment,EVP Encryption has been combined with file division method to achieve the division,encryption and patch of files and finally upload to the cloud storage system to implement network driver in cloud computing environment.This technique eliminates some of the vulnerability of traditional network driver,and at meantime enhances the efficiency of synchronization or backing-up.