Cryptomfs is a MacFUSE implementation of cryptofs by Christoph Hohmann.

Cryptomfs will use a directory to store encrypted files. The mountpoint will provide access to the unencrypted data, but no data is ever written to the harddisk without encryption.

Requirements

• Requires Mac OS X 10.5 (Leopard).
• Must have MacFUSE (http://code.google.com/p/macfuse) installed.

Features

• Filesystems are packages so they behave like disk images in Finder (e.g., Double clicking on the .cryptofs package will mount the filesystem.)
• Passwords are entered using a dialog.
• Keychain support.
• Custom volume names for mounted filesystems.
• Custom icon support for mounted filesystems.
• Easy creation of new filesystems.
• Filesystem configuration is saved in a plist file.
• Filesystems can be mounted using cryptofs and fuse in other operating systems. Good for sharing encrypted data on a dual boot system.

Finder displaying mounted volume:

The actual data: