pkcs11-helper -- A library for using PKCS#11 providers<hr>
<a href="http://www.opensc-project.org/pkcs11-helper/">http://www.opensc-project.org/pkcs11-helper/</a><hr>
pkcs11-helper is a library that simplifies the interaction with PKCS#11
providers for end-user applications using a simple API and optional
OpenSSL engine. The library allows using multiple PKCS#11 providers at
the same time, enumerating available token certificates, or selecting
a certificate directly by serialized id, handling card removal and card
insert events, handling card re-insert to a different slot, supporting
session expiration and much more all using a simple API.
</listing>