/**
 * rc4decrypt
 *
 * @param string $data        Data to decrypt.
 * @return string             The now decrypted data.
 */
function rc4decrypt($data)
{
    return endecrypt(get_site_identifier(), $data, 'de');
}

/**
 * rc4decrypt
 *
 * @param string $data ?
 * @return string
 * @todo Finish documenting this function
 */
function rc4decrypt($data)
{
    $password = 'nfgjeingjk';
    return endecrypt($password, $data, 'de');
}

 public static function rc4decrypt($data)
 {
     $password = 'knfgjeingj';
     return endecrypt($password, $data, 'de');
 }

/**
 * rc4decrypt
 *
 * Please note that in this version of moodle that the default for rc4encryption is
 * using the slightly more secure password key. There may be an issue when upgrading
 * from an older version of moodle.
 *
 * @todo MDL-31836 Remove the old password key in version 2.4
 * Code also needs to be changed in sessionlib.php
 * @see get_moodle_cookie()
 * @see set_moodle_cookie()
 *
 * @param string $data        Data to decrypt.
 * @param bool $usesecurekey  Lets us know if we are using the old or new secure password key.
 * @return string             The now decrypted data.
 */
function rc4decrypt($data, $usesecurekey = true)
{
    if (!$usesecurekey) {
        $passwordkey = 'nfgjeingjk';
    } else {
        $passwordkey = get_site_identifier();
    }
    return endecrypt($passwordkey, $data, 'de');
}

/**
 * rc4decrypt
 *
 * @todo Finish documenting this function
 *
 * @param string $data Data to decrypt
 * @return string The now decrypted data
 */
function rc4decrypt($data)
{
    $password = get_site_identifier();
    return endecrypt($password, $data, 'de');
}