This path is also considered to be a secure local file system.

这个路径可视为是一个安全的本地文件系统。

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Secure file sharing locks down the entire contents of a laptop, desktop, external drive, or USB flash drive, including boot sectors, system, and swap files.

安全文件共享锁定了一台笔记本电脑，桌上型电脑，外部驱动器或usb闪存驱动器的全部内容，包括引导扇区，系统和交换文件。

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Improved Secure file deletion on FAT32 file system.

改进对FAT32文件系统的安全文件删除。

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So a user simply has to chose a password and then the PGP system does all of the encryption and makes the file or the message secure.

NPR: The Math Behind Pellicano's Code