On 14 December 2012 11:47, jeetendra gangele <gangele...@gmail.com> wrote:
> Thanks > But i have these parameters and I wanted to load them p,a,b,q > Do u know how can i load them? > > The parameters are related to the definition of the curve. Where did you get the parameters from? Are you sure they are not just the parameters from a standard curve? It is much better to use the standard built in curves that attempting to create your own. Can you ask the person that supplied you with these parameters to tell you which standard curve they are using? If you really *have* to use the parameters directly, and they are not from a standard curve then you will need to create the curve yourself. You can use EC_GROUP_new_curve_GFp for an Fp (NID_X9_62_prime_field) curve or EC_GROUP_new_curve_GF2m for an F2m (NID_X9_62_characteristic_two_field) curve. You will also need to call EC_GROUP_set_generator to set the generator point for the curve. Matt
