Hey Rob, thanks for the reply. I've got two variants to work with. The first, and preferred, is the Gemalto eToken 5110; the second is the HID ActivKey SIM. Both are USB tokens with an embedded smart card chip inside. I've attached the data sheets for your review.
I'm working on trying to configure my CentOS 6.3.1 system to use a smart card for authentication. I've done some research and am a bit confused on how to properly configure the appropriate PAM files to enable the smart card feature. Any help would be greatly appreciated.