Creates a new EC_GROUP object with the specified parameters defined
over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
\param p BIGNUM with the polynomial defining the underlying field
\param a BIGNUM with the parameter a of the equation
\param b BIGNUM with the parameter b of the equation
\param ctx BN_CTX object (optional)
\return newly created EC_GROUP object with the specified parameters
Creates a new EC_GROUP object with the specified parameters defined over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) \param p BIGNUM with the polynomial defining the underlying field \param a BIGNUM with the parameter a of the equation \param b BIGNUM with the parameter b of the equation \param ctx BN_CTX object (optional) \return newly created EC_GROUP object with the specified parameters