DataGuard

DataGuard allows you to create a password-protected and encrypted using AES128 bit or AES 256 key bits.
Simply create a safe using the wizard and then use your secure space in the Finder as a disk drive.

To prevent others from accessing your files, simply drag your safe deposit box at the Trash or eject it as a CD / DVD / USB.
This version is only localized in French.
The password will not be claimed as your safe will be mounted on your desktop. This application does not encrypt data on the fly but only the safe containing once it is ejected from your desktop.