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mcpt.php

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<?php
class zCryptDrv_mcrypt extends zCore{
  var $iv;
  var $key;
  var $iv_size;
  var $div;

  function zCryptDrv_mcrypt(){
    $this->__construct();
  }
  function __construct(){
    parent::__construct();
    if(!defined('ENC_BIN')){define('ENC_BIN', null);}
    if(!defined('ENC_DEC')){define('ENC_DEC', null);}
    $tmp_deff = parse_ini_file(ZIGROOT.DRS.Z_DIR_PROJECTS.DRS.Z_PROJECT_DIR.DRS.ZIGSETTINGSDIR.DRS.'mcpt.ini.php', false);
    foreach($tmp_deff as $key => $val){
      if($key != 'iv' && $key != 'key'){
        if(!defined($key)){define($key, $val);}
      }
    }
    $this->iv = base64_decode($tmp_deff['iv']);
    $this->key = md5($tmp_deff['mkey']);
    //Block for Dynamic encryption
    $this->iv_size = mcrypt_get_iv_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    $this->div = mcrypt_create_iv($this->iv_size, SEC_MCRYPT_IV_SRC);
  }
  function mct(){
    list($usec, $sec) = explode(" ", microtime());
    return ((float)$usec + (float)$sec);
  }
  function encode($str, $key = NULL){
    if(is_null($key)){$key = $this->key;}
    $key_size = mcrypt_get_key_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    if(strlen($key) > $key_size){
      //perror("Length of the Key is too large for this algorighm<br />Supported Key size $key_size. Size of your key is ".strlen($key).". <br /> Either Select a Different Algorithm or select a Different key");
      $key = substr($key, 0, $key_size);
    }
    return mcrypt_encrypt(SEC_MCRYPT_ALGO, $key, base64_encode($str), SEC_MCRYPT_MODE, $this->iv);
  }
  function decode($str, $key = NULL){
    if(is_null($key)){$key = $this->key;}
    $key_size = mcrypt_get_key_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    if(strlen($key) > $key_size){
      //perror("Length of the Key is too large for this algorighm<br />Supported Key size $key_size. Size of your key is ".strlen($key).". <br /> Either Select a Different Algorithm or select a Different key");
      $key = substr($key, 0, $key_size);
    }
    //return trim(base64_decode(@mcrypt_decrypt(SEC_MCRYPT_ALGO, $key, $str, SEC_MCRYPT_MODE, $this->iv)));
    return base64_decode(trim(@mcrypt_decrypt(SEC_MCRYPT_ALGO, $key, $str, SEC_MCRYPT_MODE, $this->iv)));
  }
  function denc($str, $key = NULL){
    if(is_null($key)){$key = $this->key;}
    $key_size = mcrypt_get_key_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    if(strlen($key) > $key_size){
      //perror("Length of the Key is too large for this algorighm<br />Supported Key size $key_size. Size of your key is ".strlen($key).". <br /> Either Select a Different Algorithm or select a Different key");
      $key = substr($key, 0, $key_size);
    }
    return mcrypt_encrypt(SEC_MCRYPT_ALGO, $key, base64_encode($str), SEC_MCRYPT_MODE, $this->div);
  }
  function ddcd($str, $key = NULL){
    if(is_null($key)){$key = $this->key;}
    $key_size = mcrypt_get_key_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    if(strlen($key) > $key_size){
      //perror("Length of the Key is too large for this algorighm<br />Supported Key size $key_size. Size of your key is ".strlen($key).". <br /> Either Select a Different Algorithm or select a Different key");
      $key = substr($key, 0, $key_size);
    }
    return trim(base64_decode(mcrypt_decrypt(SEC_MCRYPT_ALGO, $key, $str, SEC_MCRYPT_MODE, $this->div)));
  }
  function tenc($str, $key = NULL){
    if(is_null($key)){$key = $this->key;}
    $key_size = mcrypt_get_key_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    if(strlen($key) > $key_size){
      //perror("Length of the Key is too large for this algorighm<br />Supported Key size $key_size. Size of your key is ".strlen($key).". <br /> Either Select a Different Algorithm or select a Different key");
      $key = substr($key, 0, $key_size);
    }
    if(SEC_MCRYPT_TIMEOUT == 'm'){$t = time();}elseif(SEC_MCRYPT_TIMEOUT == 's'){$t = $this->mct();}
    return mcrypt_encrypt(SEC_MCRYPT_ALGO, $key.$t, base64_encode($str), SEC_MCRYPT_MODE, $this->div);
  }
  function tdcd($str, $key = NULL){
    if(is_null($key)){$key = $this->key;}
    $key_size = mcrypt_get_key_size(SEC_MCRYPT_ALGO, SEC_MCRYPT_MODE);
    if(strlen($key) > $key_size){
      //perror("Length of the Key is too large for this algorighm<br />Supported Key size $key_size. Size of your key is ".strlen($key).". <br /> Either Select a Different Algorithm or select a Different key");
      $key = substr($key, 0, $key_size);
    }
    if(SEC_MCRYPT_TIMEOUT == 'm'){$t = time();}elseif(SEC_MCRYPT_TIMEOUT == 's'){$t = $this->mct();}
    //return trim(base64_decode(mcrypt_decrypt(SEC_MCRYPT_ALGO, $key.$t, $str, SEC_MCRYPT_MODE, $this->div)));
    return base64_decode(trim(mcrypt_decrypt(SEC_MCRYPT_ALGO, $key.$t, $str, SEC_MCRYPT_MODE, $this->div)));
  }
  function encrypt($str, $key = NULL){
    return $this->encode($str, $key);
  }
  function decrypt($str, $key = NULL){
    return $this->decode($str, $key);
  }
}
?>

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