Home > php教程 > php手册 > PHP base64_decode 的两种破解方法

PHP base64_decode 的两种破解方法

WBOY
Release: 2016-06-13 10:36:22
Original
1460 people have browsed it

PHP base64_decode+gzinflate压缩编码和解码代码

PHP目前在网络中被用的越来越多,加密解密的话题也一直没有停息过。下面简单介绍一下base64_decode+gzinflate压缩编码和解码代码方法,就是通常我们在程序中见的eval(gzinflate(base64_decode(加密代码))); 形式的加密方法。
网山有此类方法,但是由于局部缺少了某些字符,导致了加密后无法使用的情况,大家有兴趣可以去试试看,本人在原基础上做了简单修改,经本人测试无错。
注意:解密时请不要用汉语及带空格的名字做文件名

压缩编码(加密)代码:


 引用内容
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
$pos = strpos($contents,powered by arzn QQ:1314778);
if(false === $pos || $pos>100){ // 去除PHP文件注释和空白,减少文件大小
$contents = php_strip_whitespace($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
$filename=code.php;
encode_file_contents($filename);
echo "OK,加密完成!"
?>


压缩解码(解密)代码:


 引用内容

$Code = 这里填写要解密的编码; // base64编码
$File = decoded.php;//解码后保存的文件
$Temp = base64_decode($Code);
$temp = gzinflate($Temp);
$FP = fopen($File,"w");
fwrite($FP,$temp);
fclose($FP);
echo "解密成功!";
?>

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template