You can set up your environment to require smart card authentication when a user connects to a vCenter Server or associated Platform Services Controller from the vSphere Web Client.
How you set up smart card authentication depends on the version of vSphere that you are using.
|6.0 Update 2
Later versions of vSphere 6.0
||vSphere 6.0 documentation center.|
|6.5 and later||
||Configure the Reverse Proxy to Request Client Certificates|