GROUP_new.html">EC_GROUP_new(3)</a>) an implementation method must be provided. The functions described here all return a const pointer to an <b>EC_METHOD</b> structure that can be passed to EC_GROUP_NEW. It is important that the correct implementation type for the form of curve selected is used.</p>

<p>For F2^m curves there is only one implementation choice, i.e. EC_GF2_simple_method.</p>

<p>For Fp curves the lowest common denominator implementation is the EC_GFp_simple_method implementation. All other i