CAC and PIV Smartcard PKCS #11 cryptographic module

 CACKey provides a standard interface (PKCS #11) for smartcards connected to a
 PC/SC compliant reader. It performs a similar function to "CoolKey", but
 only supports Government Smartcards. It supports all Government Smartcards
 that implement the Government Smartcard Interoperability Specification (GSC-IS)
 v2.1 or newer as well as PIV cards that comply with NIST SP 800-73-3.