When using CA digital certificate authority system

[#1]

hi I want to apply CA digital certificate authority system. Should QV do? Where can I get reference? Thank you .

[#2]

What do you want to use a certificate for?

[#3]

For authorization and authentication.

Each user have to use a USB key(with certification) to visit qvw document. And system use certificate to identity which user in logon. Different user will visit different data.