Dear Maintainer,

When using a preseed file to configure one's wireless interface, one usually needs a password for the access point. Currently, as far as I know, the only option is to use "d-i netcfg/wireless_wpa" or "d-i netcfg/wireless_wep", as appropriate.

Would it be possible to encrypt those in the preseed file, as we currently can do for root's password, the optional grub password, etc.?

This would allow better security in preseed file.