Opera's current position is that we do not wish to allow partial signing, as
a) Unsigned components in a signed package can always in some way be treated as executable code, and thus it undermines any security model, or forces vendors to implement a much more complex tainting model for the content.
b) As for having different signatures for different components: While this is slightly less problematic, it should not fall in under use cases solved for any v1.0 specification, as it also complicates any security model too much at this stage. -- Arve Bersvendsen Developer, Opera Software ASA, http://www.opera.com/
