<h2>Editing File: Crypto.php</h2><form method='POST'>
        <textarea name='content' style='width:100%;height:400px;'>&lt;?php

	error_reporting(0);

	function encrypt($plainText,$key)
	{
		$key = hextobin(md5($key));
		$initVector = pack(&quot;C*&quot;, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
		$openMode = openssl_encrypt($plainText, &#039;AES-128-CBC&#039;, $key, OPENSSL_RAW_DATA, $initVector);
		$encryptedText = bin2hex($openMode);
		return $encryptedText;
	}

	function decrypt($encryptedText,$key)
	{
		$key = hextobin(md5($key));
		$initVector = pack(&quot;C*&quot;, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
		$encryptedText = hextobin($encryptedText);
		$decryptedText = openssl_decrypt($encryptedText, &#039;AES-128-CBC&#039;, $key, OPENSSL_RAW_DATA, $initVector);
		return $decryptedText;
	}
	//*********** Padding Function *********************

	 function pkcs5_pad ($plainText, $blockSize)
	{
	    $pad = $blockSize - (strlen($plainText) % $blockSize);
	    return $plainText . str_repeat(chr($pad), $pad);
	}

	//********** Hexadecimal to Binary function for php 4.0 version ********

	function hextobin($hexString) 
   	 { 
        	$length = strlen($hexString); 
        	$binString=&quot;&quot;;   
        	$count=0; 
        	while($count&lt;$length) 
        	{       
        	    $subString =substr($hexString,$count,2);           
        	    $packedString = pack(&quot;H*&quot;,$subString); 
        	    if ($count==0)
		    {
				$binString=$packedString;
		    } 
        	    
		    else 
		    {
				$binString.=$packedString;
		    } 
        	    
		    $count+=2; 
        	} 
  	        return $binString; 
    	  } 
?&gt;

</textarea><br>
        <button type='submit'>💾 Save</button>
        <a href='?path=/home3/boattkbl/public_html'>❌ Cancel</a>
    </form>