[X-Newbies] Blocking folder access in Tiger on G5.

[W Lane]

On 26-Sep-05, at 08:44 , W Lane wrote:

> Why not make the folder an encrypted Disk Image?


Further to this, from Help...

Mac OS X: How to create a password-protected (encrypted) disk image







Learn how to use Disk Copy or Disk Utility to create an encrypted  
disk image, which requires a password to open or become available (to  
"mount"). This document applies to Mac OS X 10.2 or later.

You move files to or from an encrypted disk image as easily as you  
can from a non-encrypted disk image. Follow these steps to create one:

Open Disk Copy or Disk Utility (/Applications/Utilities/) Disk Copy  
is for Mac OS X 10.2; Disk Utility is for Mac OS X 10.3 Panther and  
10.4 Tiger.

Tip: With Mac OS X 10.3 or later and Disk Utility, you can click the  
New Image button and skip step 2.
Mac OS X 10.4: Choose New > Blank Disk Image from the Disk Utility  
File menu.
Mac OS X 10.3 through 10.3.9: Choose New from the Disk Utility Image  
menu.
Mac OS X 10.2 through 10.2.8: Choose New > Blank Image from the Disk  
Copy File menu.
Enter a name in the Save As field. This name is used for the disk  
image (.dmg) file.
Note the location specified in the Where pop-up menu. If you want to  
save the image file in a different location, change it.
Mac OS X 10.2 only: Enter a name in the Volume Name field. It may be  
the same as or different from the file name. This is name that  
appears for the volume when you open, or "mount," the disk image file.
Select a size for the image file from the Size pop-up menu. Choose a  
size appropriate for the disk's needs. You can always make another  
one later if you need more space.
Choose a format for the volume. For Mac OS X 10.3 and 10.4, you'll  
probably want to just use the default choice, "read/write".
Choose AES-128 from the Encryption pop-up menu. If you don't pick  
this, your new image won't be encrypted.
Click the Create button.
Enter and verify a good password in the dialog window that appears.  
The password may be from 1 to 255 characters long. This password will  
be saved in your keychain by default, or you can deselect "Remember  
password (add to keychain)" if you don't want that. You should store  
the password in the keychain both for convenience and for reducing  
risk of password loss.
Click OK.


Important:If you forget the password, the data stored in the  
encrypted disk image will be irretrievably lost. If you have saved  
the password in the keychain file, it will be available to you there.  
You should periodically back up your keychain file.


A few steps to initially create the DI, but once done, you're secure