uswsusp can both sign and/or RSA encrypt the image essentially from the beginning of its existence. On the other hand you in fact do not need that and can simpl

uswsusp can both sign and/or RSA encrypt the image essentially from the beginning of its existence. On the other hand you in fact do not need that and can simply store the hibernation image on otherwise encrypted device (either as LV on encrypted LVM or as a file somewhere).