crypto/ec/ecp_smpl.c

659     BIGNUM *n0, *n1, *n2, *n3, *n4, *n5, *n6;
686     n6 = BN_CTX_get(ctx);
687     if (n6 == NULL)
740     /* n5, n6 */
743     if (!BN_mod_sub_quick(n6, n2, n4, p))
746     /* n6 = n2 - n4 */
749         if (BN_is_zero(n6)) {
794     if (!field_sqr(group, n0, n6, ctx))
802     /* X_r = n6^2 - n5^2 * 'n7' */
812     if (!field_mul(group, n0, n0, n6, ctx))
826     /* Y_r = (n6 * 'n9' - 'n8' * 'n5^3') / 2 */