When you encrypt a disk image, the password is the secret that is used to encrypt the image. The only way to decrypt the image is by using same password. The password does not reside in the encrypted image. It is no where except in your mind, unless you record it somewhere else. I enabled the full disk encryption or at least I think so. The HD shows up as 'Encrypted Logical Partition' in Disk Utility. When I boot up the macbook however I can choose between logging in as Andreas Bonini - with my user account password - or entering the disk password. If I choose the former option, I am never asked for the disk password. Disk Image.dmg Does Not Ask For Password When Encrypted Key. Create Encrypted Disk Image. Make sure you do NOT check the Remember password in my keychain box. If you enter the password correctly, the image will be mounted like a drive and if you chose read/write for the Image Format, then you can add or remove items from the encrypted image. Simply Select 'AES-128' under the 'Encryption' drop-down menu. After you click 'Create' and it will ask you to create a password for your files. If you add the password to your key chain, you will not have to enter your password to access the.dmg file when logged into your account. Took about 3 hours to fully install. Upon the start up I was given the Migration Option to which I chose to migrate from my Encrypted(By the High Sierra install) SSD drive. Fortunately for me when it asked for the FileVault password, I used the password for my user account (this also worked to mount the disk in diskutility).
NB: I want to create the disk image so that I can encrypt a few files with sensitive information. I do not want to use filevault, as I understand that it has downsides (e.g., free space needed to turn on and off, and backup with TM).
MacBook Pro (2008), Mac OS X (10.5.5), My first Apple computer: Macintosh 512
Disk Image .dmg Does Not Ask For Password When Encrypted File
Posted on Dec 10, 2008 10:00 PM