Digital Signature - Self Certificate

Currently using Acrobat XI Pro and doing research regarding digital signatures - self certificates.

My questions are:

1) Is it possible to entirely disable creating a self-certificate for a digital signature in Acrobat on an enterprise level? If so, how?

2) Can I "force" the digital signature certificate creation to use a smartcard only (PIV/CAC)?

Any insight will be greatly appreciated.

Thanks.