Encryption and Decryption using JavaScript

Posted Date: 03 Jul 2009	Resource Type: Code Snippets	Category: Javascript
Author: Manigandan	Member Level: Gold
Rating:	Points: 5

HI,

Here is the Interesting Coding for Encryption and Decryption using JavaScript.
In our Friends Circle we are using This for a Privacy...
It is very useful.


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<SCRIPT LANGUAGE="JavaScript">
<!--

var letters = 'ghijklabvwxyzABCDEFef)_+|<>?:mnQRSTU~!@#$%^VWXYZ`1234567opGHIJKLu./;'+"'"+'[]MNOP890-='+'\\'+'&*("{},cdqrst '+"\n";var split = letters.split("");var num = '';var c = '';var encrypted = '';function encrypt(it){var b = '0';var chars = it.split("");while(b= letters.length){num = eval(10-(letters.length-c));encrypted += split[num];}else{num = eval(c+10);encrypted += split[num];}}c++;}b++;}document.forms[0].data.value = encrypted;encrypted = '';}function decrypt(it){var b = '0';var chars = it.split("");while(b -->
</SCRIPT>
    <title>Untitled Page</title>
</head>

Now you can Add the code in the Form tag:


<FORM>
<TEXTAREA ROWS="9" COLS="60" NAME="data" wrap="virtual"></TEXTAREA><BR>
<INPUT TYPE="BUTTON" VALUE="Encrypt" onClick="encrypt(document.forms[0].data.value)">
<INPUT TYPE="BUTTON" VALUE="Decrypt" onClick="decrypt(document.forms[0].data.value)">
</FORM>

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