PHP代码加密

O00O0O加密

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\');
echo \'加密成功！\';

 解密方法 (未测试)

/**
 * 本函数可还原常见代码级扰码(微盾)
 **/
function unscrambler($code) {
  if(! is_array($code)) {
    $code = str_replace(\'__FILE__\', "\'$code\'", str_replace(\'eval\', \'$code=\', file_get_contents($code)));
    eval(\'?>\' . $code);
  }else {
    extract($code);
    $code = str_replace("eval", \'$code=\', $code);
    eval($code);
  }
  if(strstr($code, \'eval\')) return unscrambler(get_defined_vars());
  else return $code;
}
//用法
//echo unscrambler(\'待解码的文件名\');