crypto/ec/ecp_nistp224.c

1429     NISTP224_PRE_COMP *pre = NULL;
1444         pre = group->pre_comp.nistp224;
1445         if (pre)
1447             g_pre_comp = (const felem(*)[16][3])pre->g_pre_comp;
1612     NISTP224_PRE_COMP *pre = NULL;
1646     if ((pre = nistp224_pre_comp_new()) == NULL)
1652         memcpy(pre->g_pre_comp, gmul, sizeof(pre->g_pre_comp));
1655     if ((!BN_to_felem(pre->g_pre_comp[0][1][0], group->generator->X)) ||
1656         (!BN_to_felem(pre->g_pre_comp[0][1][1], group->generator->Y)) ||
1657         (!BN_to_felem(pre->g_pre_comp[0][1][2], group->generator->Z)))
1664         point_double(pre->g_pre_comp[1][i][0], pre->g_pre_comp[1][i][1],
1665                      pre->g_pre_comp[1][i][2], pre->g_pre_comp[0][i][0],
1666                      pre->g_pre_comp[0][i][1], pre->g_pre_comp[0][i][2]);
1668             point_double(pre->g_pre_comp[1][i][0], pre->g_pre_comp[1][i][1],
1669                          pre->g_pre_comp[1][i][2], pre->g_pre_comp[1][i][0],
1670                          pre->g_pre_comp[1][i][1], pre->g_pre_comp[1][i][2]);
1674         point_double(pre->g_pre_comp[0][2 * i][0],
1675                      pre->g_pre_comp[0][2 * i][1],
1676                      pre->g_pre_comp[0][2 * i][2], pre->g_pre_comp[1][i][0],
1677                      pre->g_pre_comp[1][i][1], pre->g_pre_comp[1][i][2]);
1679             point_double(pre->g_pre_comp[0][2 * i][0],
1680                          pre->g_pre_comp[0][2 * i][1],
1681                          pre->g_pre_comp[0][2 * i][2],
1682                          pre->g_pre_comp[0][2 * i][0],
1683                          pre->g_pre_comp[0][2 * i][1],
1684                          pre->g_pre_comp[0][2 * i][2]);
1689         memset(pre->g_pre_comp[i][0], 0, sizeof(pre->g_pre_comp[i][0]));
1692         point_add(pre->g_pre_comp[i][6][0], pre->g_pre_comp[i][6][1],
1693                   pre->g_pre_comp[i][6][2], pre->g_pre_comp[i][4][0],
1694                   pre->g_pre_comp[i][4][1], pre->g_pre_comp[i][4][2],
1695                   0, pre->g_pre_comp[i][2][0], pre->g_pre_comp[i][2][1],
1696                   pre->g_pre_comp[i][2][2]);
1698         point_add(pre->g_pre_comp[i][10][0], pre->g_pre_comp[i][10][1],
1699                   pre->g_pre_comp[i][10][2], pre->g_pre_comp[i][8][0],
1700                   pre->g_pre_comp[i][8][1], pre->g_pre_comp[i][8][2],
1701                   0, pre->g_pre_comp[i][2][0], pre->g_pre_comp[i][2][1],
1702                   pre->g_pre_comp[i][2][2]);
1704         point_add(pre->g_pre_comp[i][12][0], pre->g_pre_comp[i][12][1],
1705                   pre->g_pre_comp[i][12][2], pre->g_pre_comp[i][8][0],
1706                   pre->g_pre_comp[i][8][1], pre->g_pre_comp[i][8][2],
1707                   0, pre->g_pre_comp[i][4][0], pre->g_pre_comp[i][4][1],
1708                   pre->g_pre_comp[i][4][2]);
1712         point_add(pre->g_pre_comp[i][14][0], pre->g_pre_comp[i][14][1],
1713                   pre->g_pre_comp[i][14][2], pre->g_pre_comp[i][12][0],
1714                   pre->g_pre_comp[i][12][1], pre->g_pre_comp[i][12][2],
1715                   0, pre->g_pre_comp[i][2][0], pre->g_pre_comp[i][2][1],
1716                   pre->g_pre_comp[i][2][2]);
1719             point_add(pre->g_pre_comp[i][2 * j + 1][0],
1720                       pre->g_pre_comp[i][2 * j + 1][1],
1721                       pre->g_pre_comp[i][2 * j + 1][2],
1722                       pre->g_pre_comp[i][2 * j][0],
1723                       pre->g_pre_comp[i][2 * j][1],
1724                       pre->g_pre_comp[i][2 * j][2], 0,
1725                       pre->g_pre_comp[i][1][0], pre->g_pre_comp[i][1][1],
1726                       pre->g_pre_comp[i][1][2]);
1729     make_points_affine(31, &(pre->g_pre_comp[0][1]), tmp_felems);
1732     SETPRECOMP(group, nistp224, pre);
1733     pre = NULL;
1741     EC_nistp224_pre_comp_free(pre);