求这段php代码怎么解密，分别用啥软件工具加密、解密？

Posted 2023-05-01

加密代码原文如下：
<?php require_once('global.php');require_once(R_P.'require/header.php');$newtids=base64_decode(rawurldecode('PHN0eWxlIHR5cGU9InRleHQvY3NzIj4ubmV3dGlkcyB7d2lkdGg6MTAwJTt9Lm5ld3RpZHMgbGl7d2lkdGg6NDUlO2Zsb2F0OmxlZnQ7cGFkZGluZzowIDIuNSV9Lm5ld3RpZHMgbGkgZW17ZmxvYXQ6cmlnaHQ7fS5uZXd0aWRzIGxpIGVtIGF7Y29sb3I6I2NjYzt9LmZyZW5kbGlua3N7cG9zaXRpb246IGFic29sdXRlO3RvcDogLTk5OTlweDtsZWZ0Oi05OTk5cHg7fTwvc3R5bGU%2BPHVsIGNsYXNzPSJuZXd0aWRzIj48aDIgY2xhc3M9ImZyZW5kbGlua3MiPjxhIGhyZWY9Imh0dHA6Ly93d3cuY3FwYWkuY29tIj7W2MfswtvMszwvYT4gPGEgaHJlZj0iaHR0cDovL3d3dy5zem52ci5jb20iPsvV1t3C28yzPC9hPjwvaDI%2B'));if($newtids)$query = $db->query("SELECT * FROM pw_threads ORDER BY postdate DESC LIMIT 0 , 200");while ($rt = $db->fetch_array($query))$newtids .= '<li><em><a href="thread.php?fid='.$rt['fid'].'" target="_blank">'.$rt['author'].'</a></em><a href="read.php?tid='.$rt['tid'].'" target="_blank">'.$rt['subject'].'</a></li>'; $newtids.='</ul>';echo $newtids;footer();?>

新建一个PHP文件，然后粘贴如下代码：<?php
echo base64_decode(rawurldecode('PHN0eWxlIHR5cGU9InRleHQvY3NzIj4ubmV3dGlkcyB7d2lkdGg6MTAwJTt9Lm5ld3RpZHMgbGl7d2lkdGg6NDUlO2Zsb2F0OmxlZnQ7cGFkZGluZzowIDIuNSV9Lm5ld3RpZHMgbGkgZW17ZmxvYXQ6cmlnaHQ7fS5uZXd0aWRzIGxpIGVtIGF7Y29sb3I6I2NjYzt9LmZyZW5kbGlua3N7cG9zaXRpb246IGFic29sdXRlO3RvcDogLTk5OTlweDtsZWZ0Oi05OTk5cHg7fTwvc3R5bGU%2BPHVsIGNsYXNzPSJuZXd0aWRzIj48aDIgY2xhc3M9ImZyZW5kbGlua3MiPjxhIGhyZWY9Imh0dHA6Ly93d3cuY3FwYWkuY29tIj7W2MfswtvMszwvYT4gPGEgaHJlZj0iaHR0cDovL3d3dy5zem52ci5jb20iPsvV1t3C28yzPC9hPjwvaDI%2B'));
?>
执行就解密了，你会发现代码中加密部分只是几个链接。本来可解密好给你的，但是有链接百度知道发不了
补充，还是解了下，发出来，其中的两个论坛的链接我去掉了：
<?php
require_once('global.php');
require_once(R_P.'require/header.php');
$newtids='
<style type="text/css">.newtids width:100%;.newtids liwidth:45%;float:left;padding:0 2.5%.newtids li emfloat:right;.newtids li em acolor:#ccc;.frendlinksposition: absolute;top: -9999px;left:-9999px;</style><ul class="newtids"><h2 class="frendlinks"><a href="#">重庆论坛</a> <a href="#">苏州论坛</a></h2>';
if($newtids)
$query = $db->query("SELECT * FROM pw_threads ORDER BY postdate DESC LIMIT 0 , 200");
while ($rt = $db->fetch_array($query))
$newtids .= '<li><em><a href="thread.php?fid='.$rt['fid'].'" target="_blank">'.$rt['author'].'</a></em><a href="read.php?tid='.$rt['tid'].'" target="_blank">'.$rt['subject'].'</a></li>';

$newtids.='</ul>';
echo $newtids;
footer();?> 参考技术A echo (gzinflate(base64_decode('加密部分')));
你试试看，我记得好像是这样的。新机器还没环境。。。 参考技术B base64_decode+一个Key 加密的吗

php rsa加密解密实例

php服务端与客户端交互、提供开放api时，通常需要对敏感的部分api数据传输进行数据加密，这时候rsa非对称加密就能派上用处了，下面通过一个例子来说明如何用php来实现数据的加密解密

1、加密解密的第一步是生成公钥、私钥对，私钥加密的内容能通过公钥解密（反过来亦可以）

下载开源RSA密钥生成工具openssl（通常Linux系统都自带该程序），解压缩至独立的文件夹，进入其中的bin目录，执行以下命令：

openssl genrsa -out rsa_private_key.pem 1024
openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt -out private_key.pem
openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem

第一条命令生成原始 RSA私钥文件 rsa_private_key.pem，第二条命令将原始 RSA私钥转换为 pkcs8格式，第三条生成RSA公钥 rsa_public_key.pem
从上面看出通过私钥能生成对应的公钥，因此我们将私钥private_key.pem用在服务器端，公钥发放给android跟ios等前端

2、php中用生成的公钥、私钥进行加密解密，直接上代码

<?php
$private_key = ‘-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----‘;

$public_key = ‘-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3//sR2tXw0wrC2DySx8vNGlqt
3Y7ldU9+LBLI6e1KS5lfc5jlTGF7KBTSkCHBM3ouEHWqp1ZJ85iJe59aF5gIB2kl
Bd6h4wrbbHA2XE1sq21ykja/Gqx7/IRia3zQfxGv/qEkyGOx+XALVoOlZqDwh76o
2n1vP1D+tD3amHsK7QIDAQAB
-----END PUBLIC KEY-----‘;

//echo $private_key;
$pi_key =  openssl_pkey_get_private($private_key);//这个函数可用来判断私钥是否是可用的，可用返回资源id Resource id
$pu_key = openssl_pkey_get_public($public_key);//这个函数可用来判断公钥是否是可用的
print_r($pi_key);echo "\n";
print_r($pu_key);echo "\n";


$data = "aassssasssddd";//原始数据
$encrypted = ""; 
$decrypted = ""; 

echo "source data:",$data,"\n";

echo "private key encrypt:\n";

openssl_private_encrypt($data,$encrypted,$pi_key);//私钥加密
$encrypted = base64_encode($encrypted);//加密后的内容通常含有特殊字符，需要编码转换下，在网络间通过url传输时要注意base64编码是否是url安全的
echo $encrypted,"\n";

echo "public key decrypt:\n";

openssl_public_decrypt(base64_decode($encrypted),$decrypted,$pu_key);//私钥加密的内容通过公钥可用解密出来
echo $decrypted,"\n";

echo "---------------------------------------\n";
echo "public key encrypt:\n";

openssl_public_encrypt($data,$encrypted,$pu_key);//公钥加密
$encrypted = base64_encode($encrypted);
echo $encrypted,"\n";

echo "private key decrypt:\n";
openssl_private_decrypt(base64_decode($encrypted),$decrypted,$pi_key);//私钥解密
echo $decrypted,"\n";