紫金山api分析

安卓、逆向

https://api-zijinshan.jstv.com/V2/nav/65?OrderIndex=0&pageSize=10&AppID=zijinshan&Sign=66bc3c7398f097de82d487348c2f7d06&TT=616532651

Sign = md5(ZJS#XC@$AB3*#F2%cx$zVE*R9&L<B/V2/nav/65?OrderIndex=0&pageSize=10&AppID=zijinshan1517899475)

TT = tt(1517899475)

<?php
function tt($time){
$rslBytes = array();
$tBytes = str_split(dechex($time),$split_length = 2);
for($i=0;$i<4;$i++){
    $rslBytes[(4 - $i) - 1] = dechex((hexdec($tBytes[$i]) & 240) ^ 240| (((hexdec($tBytes[$i]) & 15) + 1) & 15));
}
$TT = hexdec($rslBytes[0].$rslBytes[1].$rslBytes[2].$rslBytes[3]);
if ($TT>2000000000){
    $TT = -($TT ^ 4294967295 - 1);
}
return $TT;
}
echo tt(1517899475);