I agree with what Richard said above in comment #14, especially:
> The installer should prompt (with a checkbox) for whether the user wants encryption. It should default to off. If the user selects the checkbox, prompt them for a passphrase. Setup encryption using that passphrase.
I agree with what Richard said above in comment #14, especially:
> The installer should prompt (with a checkbox) for whether the user wants encryption. It should default to off. If the user selects the checkbox, prompt them for a passphrase. Setup encryption using that passphrase.