Monday, January 3, 2011

Encryption and Decryption Function in JavaScript

function Decrypt(val)
{
val=unescape(val);
var len=val.length;
var newchar="";
var con=1;
var changer=10;
for(var i=0;i {
if(con%3==0)
changer=parseInt(changer)+2;
con++;
var ch=val.charCodeAt(i);
ch=parseInt(ch)-parseInt(changer);
newchar+=String.fromCharCode(ch);
}
return newchar;
}

function EncrptyData(Textval)
{
var a=Textval;
var newChar="";
var len=a.length;
var con=1;
var changer=10;
for(var k=0;k {
if(con%3==0)
changer=parseInt(changer)+2;
con++;
var ch=a.charCodeAt(k);
ch=parseInt(ch)+parseInt(changer);
newChar+=String.fromCharCode(ch);
}
return escape(newChar);
}

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