object

Object

We are provided o.bin.

Recon

$ xxd o.bin 
00000000: fdff d3fd d9a3 9335 8939 b13d 3bbf 8d3d  .......5.9.=;..=
00000010: 3b37 3589 3feb 3589 eb91 b133 3d83 3789  ;75.?.5....3=.7.
00000020: 39eb 3b85 373f eb99 8d3d 39af            9.;.7?...=9.

Flag

<?php
$a=file_get_contents("o.bin");
for($i=0; $i<strlen($a); $i++) {
    $v = ord($a[$i]);
    $v ^= 0xaa;
    $v ^= 0xff;
    $v /= 2;
    echo chr($v);
}
?>

Flag

TUCTF{c0n6r47ul4710n5_0n_br34k1n6_7h15_fl46}