Computes r = generator* n sum_{i=0}^num pi * mi
\param group underlying EC_GROUP object
\param r EC_POINT object for the result
\param n BIGNUM with the multiplier for the group generator (optional)
\param num number futher summands
\param p array of size num of EC_POINT objects
\param m array of size num of BIGNUM objects
\param ctx BN_CTX object (optional)
\return 1 on success and 0 if an error occured
Computes r = generator* n sum_{i=0}^num pi * mi \param group underlying EC_GROUP object \param r EC_POINT object for the result \param n BIGNUM with the multiplier for the group generator (optional) \param num number futher summands \param p array of size num of EC_POINT objects \param m array of size num of BIGNUM objects \param ctx BN_CTX object (optional) \return 1 on success and 0 if an error occured