Statement: None.
Solution:
View source:
<html>
<head>
<title>Obfuscation JS</title>
<script type="text/javascript">
function dechiffre(pass_enc){
var pass = "70,65,85,88,32,80,65,83,83,87,79,82,68,32,72,65,72,65";
var tab = pass_enc.split(',');
var tab2 = pass.split(',');var i,j,k,l=0,m,n,o,p = "";i = 0;j = tab.length;
k = j + (l) + (n=0);
n = tab2.length;
for(i = (o=0); i < (k = j = n); i++ ){o = tab[i-l];p += String.fromCharCode((o = tab2[i]));
if(i == 5)break;}
for(i = (o=0); i < (k = j = n); i++ ){
o = tab[i-l];
if(i > 5 && i < k-1)
p += String.fromCharCode((o = tab2[i]));
}
p += String.fromCharCode(tab2[17]);
pass = p;return pass;
}
String["fromCharCode"](dechiffre("\x35\x35\x2c\x35\x36\x2c\x35\x34\x2c\x37\x39\x2c\x31\x31\x35\x2c\x36\x39\x2c\x31\x31\x34\x2c\x31\x31\x36\x2c\x31\x30\x37\x2c\x34\x39\x2c\x35\x30"));
h = window.prompt('Entrez le mot de passe / Enter password');
alert( dechiffre(h) );
</script>
</head>
</html>
function dechiffre(pass_enc) {
var pass = "70,65,85,88,32,80,65,83,83,87,79,82,68,32,72,65,72,65";
var tab = pass_enc.split(',');
var tab2 = pass.split(',');
var i, j, k, l = 0,
m, n, o, p = "";
i = 0;
j = tab.length; // 11
k = j + (l) + (n = 0); //11
n = tab2.length; //18
for (i = (o = 0); i < (k = j = n); i++) {
o = tab[i - l];
p += String.fromCharCode((o = tab2[i]));
if (i == 5) break;
}
for (i = (o = 0); i < (k = j = n); i++) {
o = tab[i - l];
if (i > 5 && i < k - 1)
p += String.fromCharCode((o = tab2[i]));
}
p += String.fromCharCode(tab2[17]);
pass = p;
return pass;
}
String["fromCharCode"](dechiffre("55,56,54,79,115,69,114,116,107,49,50"));
h = window.prompt('Entrez le mot de passe / Enter password');
alert(dechiffre(h));
All of the loop stuff is just a red herring, just String.fromCharCode(55,56,54,79,115,69,114,116,107,49,50) to get 786OsErtk12
Validation: 786OsErtk12