怎样给PHP源代码加密?PHP二进制加密与解密的解决办法-php手册-php.cn

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怎样给PHP源代码加密?PHP二进制加密与解密的解决办法

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Jun 13, 2016 am 11:54 AM

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分享2种PHP的源码加密方式，此加密方法支持任意PHP版。

注意，加密后的PHP代码无需第三方工具解密，像往常一样，直接运行即可。

复制代码代码如下:

function encode_file_contents($filename) {
     $type=strtolower(substr(strrchr($filename,'.'),1));
     if ('php' == $type && is_file($filename) && is_writable($filename)) { // 如果是PHP文件并且可写则进行压缩编码
         $contents = file_get_contents($filename); // 判断文件是否已经被编码处理
         $contents = php_strip_whitespace($filename);

         // 去除PHP头部和尾部标识
         $headerPos = strpos($contents,'         $footerPos = strrpos($contents,'?>');
         $contents = substr($contents, $headerPos + 5, $footerPos - $headerPos);
         $encode = base64_encode(gzdeflate($contents)); // 开始编码
         $encode = '";

         return file_put_contents($filename, $encode);
     }
     return false;
}

//调用函数
$filename = 'dam.php';
encode_file_contents($filename);
echo "OK,加密完成！"
?>

加密方式2：

复制代码代码如下:

其实，PHP加密源码方式有很多，譬如，免费的微盾PHP加密，还有 www.phpjm.net 搞的在线加密，只是phpjm更复杂点而已。

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

另外，分享一个 PHP类，它能对文本的内容进行二进制加密与解密，代码如下：

复制代码代码如下:

class text_auth
{
     var $n_iter;

     function text_auth()
     {
         $this->setIter(32);
     }

     function setIter($n_iter)
     {
         $this->n_iter = $n_iter;
     }

     function getIter()
     {
         return $this->n_iter;
     }

     function encrypt($data, $key)
     {
         $n = $this->_resize($data, 4);

         $data_long[0]   = $n;
         $n_data_long    = $this->_str2long(1, $data, $data_long);

         $n = count($data_long);
         if (($n & 1) == 1) {
             $data_long[$n] = chr(0);
             $n_data_long++;
         }

         $this->_resize($key, 16, true);
         if ( '' == $key )
             $key = '0000000000000000';

         $n_key_long = $this->_str2long(0, $key, $key_long);

         $enc_data   = '';
         $w          = array(0, 0);
         $j          = 0;
         $k          = array(0, 0, 0, 0);
         for ($i = 0; $i              if ($j + 4                  $k[0] = $key_long[$j];
                 $k[1] = $key_long[$j + 1];
                 $k[2] = $key_long[$j + 2];
                 $k[3] = $key_long[$j + 3];
             } else {
                 $k[0] = $key_long[$j % $n_key_long];
                 $k[1] = $key_long[($j + 1) % $n_key_long];
                 $k[2] = $key_long[($j + 2) % $n_key_long];
                 $k[3] = $key_long[($j + 3) % $n_key_long];
             }
             $j = ($j + 4) % $n_key_long;

             $this->_encipherLong($data_long[$i], $data_long[++$i], $w, $k);

             $enc_data .= $this->_long2str($w[0]);
             $enc_data .= $this->_long2str($w[1]);
         }

         return $enc_data;
     }

     function decrypt($enc_data, $key)
     {
         $n_enc_data_long = $this->_str2long(0, $enc_data, $enc_data_long);

         $this->_resize($key, 16, true);
         if ( '' == $key )
             $key = '0000000000000000';

         $n_key_long = $this->_str2long(0, $key, $key_long);

         $data   = '';
         $w      = array(0, 0);
         $j      = 0;
         $len    = 0;
         $k      = array(0, 0, 0, 0);
         $pos    = 0;

         for ($i = 0; $i              if ($j + 4                  $k[0] = $key_long[$j];
                 $k[1] = $key_long[$j + 1];
                 $k[2] = $key_long[$j + 2];
                 $k[3] = $key_long[$j + 3];
             } else {
                 $k[0] = $key_long[$j % $n_key_long];
                 $k[1] = $key_long[($j + 1) % $n_key_long];
                 $k[2] = $key_long[($j + 2) % $n_key_long];
                 $k[3] = $key_long[($j + 3) % $n_key_long];
             }
             $j = ($j + 4) % $n_key_long;

             $this->_decipherLong($enc_data_long[$i], $enc_data_long[$i + 1], $w, $k);

             if (0 == $i) {
                 $len = $w[0];
                 if (4                      $data .= $this->_long2str($w[1]);
                 } else {
                     $data .= substr($this->_long2str($w[1]), 0, $len % 4);
                 }
             } else {
                 $pos = ($i - 1) * 4;
                 if ($pos + 4                      $data .= $this->_long2str($w[0]);

                     if ($pos + 8                          $data .= $this->_long2str($w[1]);
                     } elseif ($pos + 4                          $data .= substr($this->_long2str($w[1]), 0, $len % 4);
                     }
                 } else {
                     $data .= substr($this->_long2str($w[0]), 0, $len % 4);
                 }
             }
         }
         return $data;
     }

     function _encipherLong($y, $z, &$w, &$k)
     {
         $sum    = (integer) 0;
         $delta = 0x9E3779B9;
         $n      = (integer) $this->n_iter;

         while ($n-- > 0) {
             $y      = $this->_add($y,
                                   $this->_add($z _rshift($z, 5), $z) ^
                                     $this->_add($sum, $k[$sum & 3]));
             $sum    = $this->_add($sum, $delta);
             $z      = $this->_add($z,
                                   $this->_add($y _rshift($y, 5), $y) ^
                                     $this->_add($sum, $k[$this->_rshift($sum, 11) & 3]));
         }

         $w[0] = $y;
         $w[1] = $z;
     }

     function _decipherLong($y, $z, &$w, &$k)
     {
         $sum    = 0xC6EF3720;
         $delta = 0x9E3779B9;
         $n      = (integer) $this->n_iter;

         while ($n-- > 0) {
             $z      = $this->_add($z,
                                   -($this->_add($y _rshift($y, 5), $y) ^
                                         $this->_add($sum, $k[$this->_rshift($sum, 11) & 3])));
             $sum    = $this->_add($sum, -$delta);
             $y      = $this->_add($y,
                                   -($this->_add($z _rshift($z, 5), $z) ^
                                         $this->_add($sum, $k[$sum & 3])));
         }

         $w[0] = $y;
         $w[1] = $z;
     }

     function _resize(&$data, $size, $nonull = false)
     {
         $n      = strlen($data);
         $nmod   = $n % $size;
         if ( 0 == $nmod )
             $nmod = $size;

         if ($nmod > 0) {
             if ($nonull) {
                 for ($i = $n; $i                      $data[$i] = $data[$i % $n];
                 }
             } else {
                 for ($i = $n; $i                      $data[$i] = chr(0);
                 }
             }
         }
         return $n;
     }

     function _hex2bin($str)
     {
         $len = strlen($str);
         return pack('H' . $len, $str);
     }

     function _str2long($start, &$data, &$data_long)
     {
         $n = strlen($data);

         $tmp    = unpack('N*', $data);
         $j      = $start;

         foreach ($tmp as $value)
             $data_long[$j++] = $value;

         return $j;
     }

     function _long2str($l)
     {
         return pack('N', $l);
     }

     function _rshift($integer, $n)
     {
         if (0xffffffff $integer) {
             $integer = fmod($integer, 0xffffffff + 1);
         }

         if (0x7fffffff              $integer -= 0xffffffff + 1.0;
         } elseif (-0x80000000 > $integer) {
             $integer += 0xffffffff + 1.0;
         }

         if (0 > $integer) {
             $integer &= 0x7fffffff;
             $integer >>= $n;
             $integer |= 1          } else {
             $integer >>= $n;
         }

         return $integer;
     }

     function _add($i1, $i2)
     {
         $result = 0.0;

         foreach (func_get_args() as $value) {
             if (0.0 > $value) {
                 $value -= 1.0 + 0xffffffff;
             }

             $result += $value;
         }

         if (0xffffffff $result) {
             $result = fmod($result, 0xffffffff + 1);
         }

         if (0x7fffffff              $result -= 0xffffffff + 1.0;
         } elseif (-0x80000000 > $result) {
             $result += 0xffffffff + 1.0;
         }
         return $result;
     }
}
?>
使用方法参考如下：
// 加密过程
view sourceprint?
$text_file = S_ROOT . './456.php';
$str = @file_get_contents($text_file);

require_once S_ROOT . "./text_auth.php";
$text_auth = new text_auth(64);

$str = $text_auth->encrypt($str, "qianyunlai.com");

$filename = S_ROOT . './789.php'; // 加密后的文本为二进制，普通的文本编辑器无法正常查看
file_put_contents($filename, $str);
// 解密过程
view sourceprint
?01 $text_file = S_ROOT . './789.php';
$str = @file_get_contents($text_file);

require_once S_ROOT . "./text_auth.php";
$text_auth = new text_auth(64);

$str = $text_auth->decrypt($str, "qianyunlai.com");

$filename = S_ROOT . './456.php';
file_put_contents($filename, $str);

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