Viewing file:  ciphereres.php (2.54 KB) -rw-r--r--
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<?php
class RunnerCiphererES
{
var $key = '';
var $INITIALISATION_VECTOR = '';
var $mcript_algorithm = null;
var $SSLMethod = null;
var $mcryptModule = null;
var $max_key_size = null;
var $useSSL = false;
function openSSL_exist()
{
//return false; // uncomment for test without openssl
return function_exists('openssl_encrypt');
}
function mcrypt_exist()
{
//return false; // uncomment for test without mycript
return function_exists('mcrypt_module_open');
}
function __construct($key)
{
if ( !$this->openSSL_exist() && !$this->mcrypt_exist() )
{
if ( version_compare(phpversion(), '7.1', '>=') )
throw new Exception("Install OpenSSL extension");
else
throw new Exception("Install OpenSSL or Mcrypt extension");
}
if ( !$this->openSSL_exist() )
{
$this->mcryptModule = mcrypt_module_open($this->mcript_algorithm, '', MCRYPT_MODE_CBC, '');
}
$this->key = substr($key, 0, $this->max_key_size);
}
/**
* Encrypt
* Encrypt string
* @param {string} plain value
* @return {string} encrypted value
*/
function Encrypt($source) {
$result = '';
if ( $source != '' )
{
if ( $this->openSSL_exist() )
{
if (strlen($source) % $this->max_key_size)
{
$source = str_pad($source, strlen($source) + $this->max_key_size - strlen($source) % $this->max_key_size, "\0");
}
$result = bin2hex(openssl_encrypt($source, $this->SSLMethod, $this->key, OPENSSL_RAW_DATA | OPENSSL_NO_PADDING, $this->INITIALISATION_VECTOR));
}
else if ( mcrypt_generic_init($this->mcryptModule, $this->key, $this->INITIALISATION_VECTOR) != -1 )
{
$result = bin2hex(mcrypt_generic($this->mcryptModule, $source));
}
}
return $result;
}
/**
* Decrypt
* Decrypt ecncrypted string
* @param {string} encrypted value
* @return {string} decrypted value
*/
function Decrypt($source) {
if (!is_string($source) || strlen($source) == 0 || strlen($source) % 2 > 0 || preg_match ("/[^0-9a-f]/", $source) == 1)
return $source;
$result = '';
if ( $this->openSSL_exist() )
{
$result = openssl_decrypt(hex2bin($source), $this->SSLMethod, $this->key, OPENSSL_RAW_DATA | OPENSSL_NO_PADDING, $this->INITIALISATION_VECTOR);
}
else if ( mcrypt_generic_init($this->mcryptModule, $this->key, $this->INITIALISATION_VECTOR) != -1)
{
$result = mdecrypt_generic($this->mcryptModule, hex2bin($source));
}
$result = str_replace("\0", '', $result);
return $result;
}
}
?>
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