Need help using M2Crypto.Engine to access USB Token

Question

I am using M2Crypto-0.20.2. I want to use engine_pkcs11 from the OpenSC project and the Aladdin PKI client for token based authentication making xmlrpc calls over ssl.

Answer 1

Found !!!!

Yes, exactly the way where I came from.

So, actually the ENGINE_init() is not implemented in M2Crypto.Engine. So, only one solution: patching!!! (very small...) so I've created a new Engine method (in Engine.py)

def engine_initz(self):
        """Return engine name"""
        return m2.engine_initz(self._ptr)

Why engine_initz ? because engine_init is already define in SWIG/_engine.i,:

void engine_init(PyObject *engine_err) {
    Py_INCREF(engine_err);
    _engine_err = engine_err;
}

I don't really know what is done, so I've prefered creating a new one... So I've just added the following to SWIG/_engine.i:

%rename(engine_initz) ENGINE_init;
extern int ENGINE_init(ENGINE *);

And recompile the __m2crypto.so, now just add a "pkcs11.engine_initz()" before launching the private key, and it works.....