Parallel and Sequential authentication of digital signatures
When I send a document to a list of users for parallel signing, does each user add his cryptographic signature over the crypto-sign of the last user to sign the doc, or just on the bare document?
This may have several implications.
For example,
A). A document may indicate agreement of all the undersigned to some body stated in it,
OR
B). A document may be needed to be signed by a group of people in a hierarchical organization, where each person only reviews the document if it has been signed by all those in the hierarchy below him / her.
I'm fairly confused as to how it currently works and couldn't find any supporting documentation.
