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javagrails/EnDecryption.php

Last active December 17, 2015 20:38
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Simple Class for PHP Encryption Decryption
Raw
EnDecryption.php
<?php
class EnDecryption
{
public static $saltKey = ''; //You Can Change This as Your Own By Calling Constructor
function __construct($salt = 'setDefaultSalt')
{
//print 'Default Salt : ' . $salt;
EnDecryption::$saltKey = $salt;
//print '<br/>EnDecryption::saltKey : ' . EnDecryption::$saltKey . '<br/>';
}
private static function doBase64Encode($string)
{
$data = base64_encode($string);
$data = str_replace(array('+', '/', '='), array('-', '_', ''), $data);
return $data;
}
private static function doBase64Decode($string)
{
$data = str_replace(array('-', '_'), array('+', '/'), $string);
$modBy4 = strlen($data) % 4;
if ($modBy4) {
$data .= substr('====', $modBy4);
}
return base64_decode($data);
}
public static function encrypt($eyValue)
{
if (!$eyValue) {
return false;
}
$text = $eyValue;
$initialVectorSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$initializeVector = mcrypt_create_iv($initialVectorSize, MCRYPT_RAND);
$encryptText = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, EnDecryption::$saltKey, $text, MCRYPT_MODE_ECB, $initializeVector);
return trim(EnDecryption::doBase64Encode($encryptText));
}
public static function decrypt($dyValue)
{
if (!$dyValue) {
return false;
}
$encryptText = EnDecryption::doBase64Decode($dyValue);
$initialVectorSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$initializeVector = mcrypt_create_iv($initialVectorSize, MCRYPT_RAND);
$decryptText = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, EnDecryption::$saltKey, $encryptText, MCRYPT_MODE_ECB, $initializeVector);
return trim($decryptText);
}
}
/*use like below in any PHP script*/
echo '<!DOCTYPE html>';
echo '<html>';
echo '<head>';
echo '<title>';
echo 'PHP Encryption Decryption By Salman';
echo '</title>';
echo '</head>';
echo '<body>';
echo '<div style="border:1px solid blue;text-align:left;padding:50px 50px 50px 50px;background-color:#E0E6F8;">';
echo 'Sample Call of&nbsp;&nbsp;&nbsp;PHP Class <b>EnDecryption</b><br/>';
$realData = "encrypt Salman The Bad Boy";
$mySalt = "youAreSalty420";
//Encryption Decryption Operations
$enDecryptionObj = new EnDecryption($mySalt); //to set salt not mandatory
$encryptedValue = EnDecryption::encrypt($realData); //encrypt real data
$decryptedValue = EnDecryption::decrypt($encryptedValue); //decrypt encrypted value of real data
echo '<br/>';
echo '<div style="color:blue;">realData&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: '.$realData.'</div>';
echo '<br/>';
echo '<div style="color:red;">encryptedValue&nbsp;&nbsp;: '.$encryptedValue.'</div>';
echo '<br/>';
echo '<div style="color:green;">decryptedValue&nbsp;&nbsp;: '.$decryptedValue.'</div>';
echo '<br/>';
echo '<hr/>';
echo '<div style="color:black;">Java Grails Gist Link&nbsp;&nbsp;: <a href="https://gist.github.com/javagrails/5668805">Click for Source</a></div>';
echo '</div>';
echo '</body>';
echo '</html>';
?>
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