is there any support in Mac OS X for signing data using smartcards? I have looked through the system headers and found only vauge references to smart card support (in SecKeychain.h), which didn’t really take me anywhere.
If there’s no built-in support, which are my options (ie. what free/non-free libraries exist that can help me)?
I’m answering my own question here, for reference.
The OpenSC libraries provides everything you need to deal with smartcards, and it is cross-platform (Windows, Linux and Mac), and its license is good for commercial projects.