crypto/ec/ecp_nistp521.c

1485  * generator, using certain (large) precomputed multiples in g_pre_comp.
1505      * of the generator (last quarter of rounds) and additions of other
1515         /* add multiples of the generator */
1571 /* Precomputation for the group generator. */
1809  * Computes scalar*generator + \sum scalars[i]*points[i], ignoring NULL
1833     EC_POINT *generator = NULL;
1858         generator = EC_POINT_new(group);
1859         if (generator == NULL)
1861         /* get the generator from precomputation */
1869                                                       generator, x, y, z,
1872         if (0 == EC_POINT_cmp(group, generator, group->generator, ctx))
1873             /* precomputation matches generator */
1877              * we don't have valid precomputation: treat the generator as a
1912                  * generator
1968     /* the scalar for the generator */
1985         /* do the multiplication with generator precomputation */
1992         /* do the multiplication without generator precomputation */
2009     if (generator != NULL)
2010         EC_POINT_free(generator);
2029     EC_POINT *generator = NULL;
2042     /* get the generator */
2043     if (group->generator == NULL)
2045     generator = EC_POINT_new(group);
2046     if (generator == NULL)
2050     if (!EC_POINT_set_affine_coordinates_GFp(group, generator, x, y, ctx))
2055      * if the generator is the standard one, use built-in precomputation
2057     if (0 == EC_POINT_cmp(group, generator, group->generator, ctx)) {
2062     if ((!BN_to_felem(pre->g_pre_comp[1][0], &group->generator->X)) ||
2063         (!BN_to_felem(pre->g_pre_comp[1][1], &group->generator->Y)) ||
2064         (!BN_to_felem(pre->g_pre_comp[1][2], &group->generator->Z)))
2126     if (generator != NULL)
2127         EC_POINT_free(generator);