基于虚拟磁盘的携带型操作系统加密方案  

Mobile operating system encryption scheme based on virtual disk

作　　者：覃冠杰 马建设[1] 程雪岷[1] 

机构地区：[1]清华大学光盘国家工程研究中心深圳分中心,广东深圳518055

出　　处：《计算机应用》2014年第A02期105-107,共3页journal of Computer Applications

基　　金：2012年广东省产学研省部合作专项资金资助项目;广东省院全面战略合作专项资金资助项目(2012B091100102)

摘　　要：针对移动硬盘的加密系统分区无法被正确辨识而导致误格式化的问题,应用文件系统过滤驱动技术,结合硬盘主引导程序及分区表机理,对现有的基于虚拟磁盘的移动硬盘加解密方案进行了改进,在加密分区包含可运行操作系统的情况下,增加了盘符自动隐藏及恢复的功能。以开源加密软件Truecrypt为例,利用安装了视窗操作系统的固态移动硬盘进行测试。结果表明,在不影响加密操作系统正常运行的同时,盘符自动隐藏及恢复功能避免了用户的误格式化操作,从而提高了移动硬盘加密系统分区的安全性和隐蔽性。For the problem of accidentally formatting encrypted system partitions within mobile hard disks, which is caused by misidentification of the running operating system, the authors improved the virtual disk encryption and decryption program for mobile hard disks, using file system filter driver technology and the mechanism of master boot program and partition table. Auto-hide-and-recover feature was added to the program in case that the encrypted partition contained an operating system. Taking Truecrypt for example, and using solid-state mobile hard disks which installed Windows system for test, the result shows that auto-hide-and-recover feature can avoid users from formatting the encrypted partition by mistake while the encrypted system can run properly. The result indicates that the improved program can enhance the security and concealment of encrypted system partitions within mobile hard disks.

关 键 词：虚拟磁盘 移动硬盘 操作系统 主引导记录 隐藏分区 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]