Virtual Private Networks

Moved to ApplicationSupport

The common standard for Virtual Private Networks is IPSEC. For linux there are four implementations of IPSEC:

•  FreeS/WAN has no support for smart cards, unless patched with the X.509 patch. That patch comes with documentation how to use smart cards. FreeS/WAN project has ended, you might want to use Openswan or strongSwan instead.
•  Openswan supports OpenSC natively and must be compiled with OpenSC support. If that is done, you can find more details in the Openswan documentation:  README.x509 has a chapter 8 about Smartcard support.
•  strongSwan supports smart card authentication using PKCS#11 API. It should work fine with opensc-pkcs11.so, please report your results. Detailed documentation is part of the  strongSwan documentation.
•  Racoon does currently not support smart card authentication.
•  OpenVPN does support PKCS#11 in current devel version. Successfuly tested OpenSC with OpenVPN 2.1beta.7. They have a howto with details on it at  http://openvpn.net/howto.html