Can I create digital signatures for other people?

Question

I am trying to determine if there are rules/software limitations that prohibit me from creating a digital signature for other people on my PC. As an example, I support a Vice President-can I create his digital signature and store it to use on his behalf? I would also have my own signature created and stored.  Thanks.

Answer 1

Consider the following:
if you use your local CA server to issue digital signature certificates, there is no cost, because you are eligible to issue so many certificates as you need. However, documents signed by these certificates will be considered trusted only within your AD
forest and other machines that explicitly trust your local CA. Any external client will not trust your signatures.
If you want to make your signature trusted outside your network (say, in worldwide), you need to pruchase a certificate from trusted commercial CA (VeriSign, GoDaddy, GlobalSign, StartCom, etc) according to respective vendor price list. In that case you
don't need to have your local CA server, because it is not used. All certificate management is performed by the external CA. A most common scenario is to purchase signing certificate for particular departament principals (head managers) or few certificates
for a whole company (all documents are revised by a responsible person or persons who holds signing certificate and sign them after review).
so, it is not clear from your post what exactly you need.
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Windows PKI reference:
on TechNet wiki