pub unsafe extern "C" fn ecdh_make_params( ctx: *mut ecdh_context, olen: *mut size_t, buf: *mut c_uchar, blen: 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
