memset (out, 0x42, sizeof (out));
base64_encode (in, 0, out, 0);
memset (out, 0x42, sizeof (out));
base64_encode (in, 0, out, 0);
memset (out, 0x42, sizeof (out));
base64_encode (in, 1, out, 1);
memset (out, 0x42, sizeof (out));
base64_encode (in, 1, out, 1);