KEY_PRI_DH942_BASE
copy_bigint_attr(&tmp_nopad, KEY_PRI_DH942_BASE(keyp));
bigint_attr_cleanup(KEY_PRI_DH942_BASE(keyp));
copy_bigint_attr(&base, KEY_PRI_DH942_BASE(pvk));
bigint_attr_cleanup(KEY_PRI_DH942_BASE(pbk));
rv = copy_bigint(KEY_PRI_DH942_BASE(pbk),
KEY_PRI_DH942_BASE(old_pri_key_obj_p));
copy_bigint_attr(&base, KEY_PRI_DH942_BASE(pvk));
copy_bigint_attr(&subprime, KEY_PRI_DH942_BASE(pvk));