Online PHP editor | rfc for AZM5H

@ 2015-12-14T09:03:24Z

<?php



function decryptData($value){
	$key = "ICS2015";
    $crypttext = base64_decode($value);
    $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
    $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
    $decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $crypttext, MCRYPT_MODE_ECB, $iv);
    return trim($decrypttext); 
}

function encryptData($value)
{
  $key = "ICS2015";
  $text = $value;
  // getting the size of the IV (Initialization Vector) belonging to a specific cipher / mode combination
  // Accept two params
   // 1: cipher (MCPYPT_ciphername constraint or the name of algorithms string)
   // 2: mode (MCPYPT_MODE_modename constraint or one of the following string - ecb, cbc, cfb, ofb, nofb or stream )
  $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
 
  // Create an initialization vector(IV) from RANDOM source
  $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
  // Encrypt plaintext with given params
  $crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv);
 
  return base64_encode($crypttext);
}

$data = 'testdata';
$encData = encryptData($data);
$decData = decryptData($encData);
echo $data;
echo $encData;
echo $decData;
?>

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to undefined function mcrypt_get_iv_size() in /in/AZM5H:22 Stack trace: #0 /in/AZM5H(33): encryptData('testdata') #1 {main} thrown in /in/AZM5H on line 22
Process exited with code 255.

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