How do you encrypt files?

Can someone tell me how to encrypt files on my macbook? I know I have to use the disk utility but anything else confuses me.

Kyle,
the reason for that is quite simple, and easy to miss. When you first created the image, a password window came up, asking you to put the password in that you want to use to protect the image. right under the password, and the verify password fields, there is a check-box that says "Remember password(add to keychain)." this is checked by default. the password is still there, your coumputer just automatically fills it in. next time you create an encrypted image, deselect this field, and it will ask for authorization.
P.S. - this remember password option is default selected the first time you mount the disk also, so make sure it's unchecked, or that will be the last time it asks you for the password
~cdavenport

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