Configuring an Oracle Solaris System for Smart Card Login
With appropriate hardware and software installed, an Oracle Solaris system can use smart cards to authenticate users. PKI Authentication by Smart Card shows how the PKI authenticates the smart card, and Software Implementation of Two-Factor Authentication in Oracle Solaris and Software Connections for Two-Factor Authentication in Oracle Solaris shows the software stack. The assumption is that the site is already running an LDAP directory service where certificates can be enrolled.
