PHP给源代码加密的几种方法汇总(推荐)

发布:smiling　来源: PHP粉丝网　添加日期：2021-09-03 10:28:03　浏览: 评论：0　

虽说分享是传统的美德，但我们有时候辛辛苦苦写一些程序只是为了卖点小钱，挣点辛苦费，也防止有些没有道德的人倒卖，所以我们不得不对我们的程序进行加密，以下我们来介绍一下如何通过PHP的自定义函数来加密我们的PHP源代码。

第一个方法

<?php

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,'<?php');

   $footerPos = strrpos($contents,'?>');

   $contents = substr($contents, $headerPos + 5, $footerPos - $headerPos);

   $encode = base64_encode(gzdeflate($contents)); // 开始编码

   $encode = '<?php'."\n eval(gzinflate(base64_decode("."'".$encode."'".")));\n\n?>";



   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！"

?>

第二个方法

<?php



function RandAbc($length = "") { // 返回随机字符串

  $str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

  return str_shuffle($str);

}



$filename = 'index.php'; //要加密的文件

$T_k1 = RandAbc(); //随机密匙1

$T_k2 = RandAbc(); //随机密匙2

$vstr = file_get_contents($filename);

$v1 = base64_encode($vstr);

$c = strtr($v1, $T_k1, $T_k2); //根据密匙替换对应字符。

$c = $T_k1.$T_k2.$c;

$q1 = "O00O0O";

$q2 = "O0O000";

$q3 = "O0OO00";

$q4 = "OO0O00";

$q5 = "OO0000";

$q6 = "O00OO0";

$s = '$'.$q6.'=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$'.$q1.'=$'.$q6.'{3}.$'.$q6.'{6}.$'.$q6.'{33}.$'.$q6.'{30};$'.$q3.'=$'.$q6.'{33}.$'.$q6.'{10}.$'.$q6.'{24}.$'.$q6.'{10}.$'.$q6.'{24};$'.$q4.'=$'.$q3.'{0}.$'.$q6.'{18}.$'.$q6.'{3}.$'.$q3.'{0}.$'.$q3.'{1}.$'.$q6.'{24};$'.$q5.'=$'.$q6.'{7}.$'.$q6.'{13};$'.$q1.'.=$'.$q6.'{22}.$'.$q6.'{36}.$'.$q6.'{29}.$'.$q6.'{26}.$'.$q6.'{30}.$'.$q6.'{32}.$'.$q6.'{35}.$'.$q6.'{26}.$'.$q6.'{30};eval($'.$q1.'("'.base64_encode('$'.$q2.'="'.$c.'";eval(\'?>\'.$'.$q1.'($'.$q3.'($'.$q4.'($'.$q2.',$'.$q5.'*2),$'.$q4.'($'.$q2.',$'.$q5.',$'.$q5.'),$'.$q4.'($'.$q2.',0,$'.$q5.'))));').'"));';



$s = '<?php '."\n".$s."\n".' ?>';

//echo $s;

// 生成加密后的PHP文件

$fpp1 = fopen('temp_'.$filename, 'w');

fwrite($fpp1, $s) or die('写文件错误');



?>

第三个方法

<?php



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 < $n_data_long; ++$i) {

    if ($j + 4 <= $n_key_long) {

     $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 < $n_enc_data_long; $i += 2) {

    if ($j + 4 <= $n_key_long) {

     $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 <= $len) {

      $data .= $this->_long2str($w[1]);

     } else {

      $data .= substr($this->_long2str($w[1]), 0, $len % 4);

     }

    } else {

     $pos = ($i - 1) * 4;

     if ($pos + 4 <= $len) {

      $data .= $this->_long2str($w[0]);



      if ($pos + 8 <= $len) {

       $data .= $this->_long2str($w[1]);

      } elseif ($pos + 4 < $len) {

       $data .= substr($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 << 4 ^ $this->_rshift($z, 5), $z) ^

          $this->_add($sum, $k[$sum & 3]));

    $sum = $this->_add($sum, $delta);

    $z  = $this->_add($z,

         $this->_add($y << 4 ^ $this->_rshift($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 << 4 ^ $this->_rshift($y, 5), $y) ^

           $this->_add($sum, $k[$this->_rshift($sum, 11) & 3])));

    $sum = $this->_add($sum, -$delta);

    $y  = $this->_add($y,

         -($this->_add($z << 4 ^ $this->_rshift($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 < $n - $nmod + $size; ++$i) {

      $data[$i] = $data[$i % $n];

     }

    } else {

     for ($i = $n; $i < $n - $nmod + $size; ++$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 || -0xffffffff > $integer) {

    $integer = fmod($integer, 0xffffffff + 1);

   }



   if (0x7fffffff < $integer) {

    $integer -= 0xffffffff + 1.0;

   } elseif (-0x80000000 > $integer) {

    $integer += 0xffffffff + 1.0;

   }



   if (0 > $integer) {

    $integer &= 0x7fffffff;

    $integer >>= $n;

    $integer |= 1 << (31 - $n);

   } 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 || -0xffffffff > $result) {

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

   }



   if (0x7fffffff < $result) {

    $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);

PHP给源代码加密的几种方法汇总(推荐)

发布:smiling　来源: PHP粉丝网　添加日期：2021-09-03 10:28:03　浏览: 评论：0

Tags: PHP源代码加密

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PHP给源代码加密的几种方法汇总(推荐)

发布:smiling 来源: PHP粉丝网 添加日期：2021-09-03 10:28:03 浏览: 评论：0

Tags: PHP源代码加密

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发布:smiling　来源: PHP粉丝网　添加日期：2021-09-03 10:28:03　浏览: 评论：0　