Is it possible to change an encrypted volume's password w/o recreating the volume?
I have a 10G encrypted volume bundle created with Disk Utility. I want to change it's encryption password. How can I do that?
You can use the "Change Password..." feature from the Images menu in Disk Utility. (Under the File menu in 10.7+. Hat tip to ymasood)
hdiutil chpass image
You will be prompted for the passwords.