pub unsafe extern "C" fn dhm_calc_secret( ctx: *mut dhm_context, output: *mut c_uchar, output_size: size_t, olen: *mut size_t, f_rng: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: *mut c_uchar, arg3: size_t) -> c_int>, p_rng: *mut c_void) -> c_int
