Originally Posted by
NTC
While what you seek is relatively common - it is not clear what security technology your organization is using when you say 'Common Access Card'. But in any case it really comes down to this:
* A user clicks the signature block
* is prompted for their PIN....... [this can be a messagebox, pop up form, or even an hidden control made visible]
* they enter their PIN manually into the field provided
* their certificate information is loaded into the signature block......[it is not clear what you mean by 'loaded' or where that data is coming from so one presumes there is some table somewhere]
In the last 2 bullets you need compose custom code that compares the value of the PIN entered with this table for validity.