影子文件实现文件透明加密技术研究

Transparent Encryption Technology of Shadow File

文件透明加密技术,可以在不改变用户操作习惯的情况下实施信息加密保护。由于操作系统文件缓存机制,导致直接通过文件过滤驱动实现透明加密存有漏洞。本文以Windows微过滤驱动和替身文件为核心,提出无需处理缓存的文件透明加密方案。

Transparent encryption technology can protect electronic files without any additional operation. However due to the cache mechanism of operating system file,the loophole would exist when file transparent encryption is directly achieved through file filter drivers. With Windows minifilter and shadow file as the core,the scheme for file transparent encryption without dealing with the cache is proposed.