Engine_pkcs11 is an implementation of an engine for OpenSSL.
It can be loaded using code, config file or command line and will pass any
function call by openssl to a PKCS#11 module. Engine_pkcs11 is meant to be
used with smart cards and software for using smart cards in PKCS#11 format,
such as OpenSC. Originaly this engine was a part of OpenSC, until OpenSC was
split into several small projects for improved flexibility.
