<?php
/**
*
* @ This file is created by http://DeZender.Net
* @ deZender (PHP7 Decoder for ionCube Encoder)
*
* @ Version			:	4.1.0.1
* @ Author			:	DeZender
* @ Release on		:	29.08.2020
* @ Official site	:	http://DeZender.Net
*
*/

class Crypt_Base
{
	/**
     * The Encryption Mode
     *
     * @see Crypt_Base::Crypt_Base()
     * @var Integer
     * @access private
     */
	public $mode;
	/**
     * The Block Length of the block cipher
     *
     * @var Integer
     * @access private
     */
	public $block_size = 16;
	/**
     * The Key
     *
     * @see Crypt_Base::setKey()
     * @var String
     * @access private
     */
	public $key = "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0";
	/**
     * The Initialization Vector
     *
     * @see Crypt_Base::setIV()
     * @var String
     * @access private
     */
	public $iv;
	/**
     * A "sliding" Initialization Vector
     *
     * @see Crypt_Base::enableContinuousBuffer()
     * @see Crypt_Base::_clearBuffers()
     * @var String
     * @access private
     */
	public $encryptIV;
	/**
     * A "sliding" Initialization Vector
     *
     * @see Crypt_Base::enableContinuousBuffer()
     * @see Crypt_Base::_clearBuffers()
     * @var String
     * @access private
     */
	public $decryptIV;
	/**
     * Continuous Buffer status
     *
     * @see Crypt_Base::enableContinuousBuffer()
     * @var Boolean
     * @access private
     */
	public $continuousBuffer = false;
	/**
     * Encryption buffer for CTR, OFB and CFB modes
     *
     * @see Crypt_Base::encrypt()
     * @see Crypt_Base::_clearBuffers()
     * @var Array
     * @access private
     */
	public $enbuffer;
	/**
     * Decryption buffer for CTR, OFB and CFB modes
     *
     * @see Crypt_Base::decrypt()
     * @see Crypt_Base::_clearBuffers()
     * @var Array
     * @access private
     */
	public $debuffer;
	/**
     * mcrypt resource for encryption
     *
     * The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
     * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
     *
     * @see Crypt_Base::encrypt()
     * @var Resource
     * @access private
     */
	public $enmcrypt;
	/**
     * mcrypt resource for decryption
     *
     * The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
     * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
     *
     * @see Crypt_Base::decrypt()
     * @var Resource
     * @access private
     */
	public $demcrypt;
	/**
     * Does the enmcrypt resource need to be (re)initialized?
     *
     * @see Crypt_Twofish::setKey()
     * @see Crypt_Twofish::setIV()
     * @var Boolean
     * @access private
     */
	public $enchanged = true;
	/**
     * Does the demcrypt resource need to be (re)initialized?
     *
     * @see Crypt_Twofish::setKey()
     * @see Crypt_Twofish::setIV()
     * @var Boolean
     * @access private
     */
	public $dechanged = true;
	/**
     * mcrypt resource for CFB mode
     *
     * mcrypt's CFB mode, in (and only in) buffered context,
     * is broken, so phpseclib implements the CFB mode by it self,
     * even when the mcrypt php extension is available.
     *
     * In order to do the CFB-mode work (fast) phpseclib
     * use a separate ECB-mode mcrypt resource.
     *
     * @link http://phpseclib.sourceforge.net/cfb-demo.phps
     * @see Crypt_Base::encrypt()
     * @see Crypt_Base::decrypt()
     * @see Crypt_Base::_setupMcrypt()
     * @var Resource
     * @access private
     */
	public $ecb;
	/**
     * Optimizing value while CFB-encrypting
     *
     * Only relevant if $continuousBuffer enabled
     * and $engine == CRYPT_MODE_MCRYPT
     *
     * It's faster to re-init $enmcrypt if
     * $buffer bytes > $cfb_init_len than
     * using the $ecb resource furthermore.
     *
     * This value depends of the choosen cipher
     * and the time it would be needed for it's
     * initialization [by mcrypt_generic_init()]
     * which, typically, depends on the complexity
     * on its internaly Key-expanding algorithm.
     *
     * @see Crypt_Base::encrypt()
     * @var Integer
     * @access private
     */
	public $cfb_init_len = 600;
	/**
     * Does internal cipher state need to be (re)initialized?
     *
     * @see setKey()
     * @see setIV()
     * @see disableContinuousBuffer()
     * @var Boolean
     * @access private
     */
	public $changed = true;
	/**
     * Padding status
     *
     * @see Crypt_Base::enablePadding()
     * @var Boolean
     * @access private
     */
	public $padding = true;
	/**
     * Is the mode one that is paddable?
     *
     * @see Crypt_Base::Crypt_Base()
     * @var Boolean
     * @access private
     */
	public $paddable = false;
	/**
     * Holds which crypt engine internaly should be use,
     * which will be determined automatically on __construct()
     *
     * Currently available $engines are:
     * - CRYPT_MODE_MCRYPT   (fast, php-extension: mcrypt, extension_loaded('mcrypt') required)
     * - CRYPT_MODE_INTERNAL (slower, pure php-engine, no php-extension required)
     *
     * In the pipeline... maybe. But currently not available:
     * - CRYPT_MODE_OPENSSL  (very fast, php-extension: openssl, extension_loaded('openssl') required)
     *
     * If possible, CRYPT_MODE_MCRYPT will be used for each cipher.
     * Otherwise CRYPT_MODE_INTERNAL
     *
     * @see Crypt_Base::encrypt()
     * @see Crypt_Base::decrypt()
     * @var Integer
     * @access private
     */
	public $engine;
	/**
     * The mcrypt specific name of the cipher
     *
     * Only used if $engine == CRYPT_MODE_MCRYPT
     *
     * @link http://www.php.net/mcrypt_module_open
     * @link http://www.php.net/mcrypt_list_algorithms
     * @see Crypt_Base::_setupMcrypt()
     * @var String
     * @access private
     */
	public $cipher_name_mcrypt;
	/**
     * The default password key_size used by setPassword()
     *
     * @see Crypt_Base::setPassword()
     * @var Integer
     * @access private
     */
	public $password_key_size = 32;
	/**
     * The default salt used by setPassword()
     *
     * @see Crypt_Base::setPassword()
     * @var String
     * @access private
     */
	public $password_default_salt = 'phpseclib/salt';
	/**
     * The namespace used by the cipher for its constants.
     *
     * ie: AES.php is using CRYPT_AES_MODE_* for its constants
     *     so $const_namespace is AES
     *
     *     DES.php is using CRYPT_DES_MODE_* for its constants
     *     so $const_namespace is DES... and so on
     *
     * All CRYPT_<$const_namespace>_MODE_* are aliases of
     * the generic CRYPT_MODE_* constants, so both could be used
     * for each cipher.
     *
     * Example:
     * $aes = new Crypt_AES(CRYPT_AES_MODE_CFB); // $aes will operate in cfb mode
     * $aes = new Crypt_AES(CRYPT_MODE_CFB);     // identical
     *
     * @see Crypt_Base::Crypt_Base()
     * @var String
     * @access private
     */
	public $const_namespace;
	/**
     * The name of the performance-optimized callback function
     *
     * Used by encrypt() / decrypt()
     * only if $engine == CRYPT_MODE_INTERNAL
     *
     * @see Crypt_Base::encrypt()
     * @see Crypt_Base::decrypt()
     * @see Crypt_Base::_setupInlineCrypt()
     * @see Crypt_Base::$use_inline_crypt
     * @var Callback
     * @access private
     */
	public $inline_crypt;
	/**
     * Holds whether performance-optimized $inline_crypt() can/should be used.
     *
     * @see Crypt_Base::encrypt()
     * @see Crypt_Base::decrypt()
     * @see Crypt_Base::inline_crypt
     * @var mixed
     * @access private
     */
	public $use_inline_crypt;

	/**
     * Default Constructor.
     *
     * Determines whether or not the mcrypt extension should be used.
     *
     * $mode could be:
     *
     * - CRYPT_MODE_ECB
     *
     * - CRYPT_MODE_CBC
     *
     * - CRYPT_MODE_CTR
     *
     * - CRYPT_MODE_CFB
     *
     * - CRYPT_MODE_OFB
     *
     * (or the alias constants of the choosen cipher, for example for AES: CRYPT_AES_MODE_ECB or CRYPT_AES_MODE_CBC ...)
     *
     * If not explictly set, CRYPT_MODE_CBC will be used.
     *
     * @param optional Integer $mode
     * @access public
     */
	public function Crypt_Base($mode = CRYPT_MODE_CBC)
	{
		$const_crypt_mode = 'CRYPT_' . $this->const_namespace . '_MODE';
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