Abstract: In view of secure protection problem of backup data, this paper designs a transparent encryption mechanism of backup data for disaster tolerance based on cascading file system. In this mechanism, it uses transparent encryption function based on virtual disk. When it reads data, it encrypts. When it writes data, it decrypts. Thus, it implements data disaster tolerance, and at the same time, it enhances the encryption protection of backup data. It protects the integrity and confidentiality of data.

Key words: transparent encryption, virtual disk, stack, disaster tolerance

摘要： 针对备份数据的安全保护问题，设计一个基于层叠式文件系统的面向容灾的备份数据透明加密机制，采用基于虚拟磁盘的透明加密方法，在写入数据时加密，在读取数据时解密，从而在实现数据容灾的基础之上，增强对备份数据的加密保护，实现对数据的完整性、机密性的保护。

关键词: 透明加密, 虚拟磁盘, 堆栈, 容灾

CLC Number: 

• TP393.08