I need a package plugin to show an "Enter password, Confirm password" dialogue as part of an installer package. The plugin should compare passwords, providing a suitable message if they do not match. When a match is made, the password should be sent to a blowfish ECB encryption routine (if you are unfamiliar with blowfish this step can be implemented by me afterwards), then it should be stored in a system plist.
The plugin screen should maintain the "look and feel" of the previous default package dialogues, including background image.
I don't know if its relevant, I'm using the "Packages" utility by Stéphane Sudre to build the package as a flat package.