php 生成RSA公钥和私钥

1.生成公钥私钥 win下必须要openssl.cof支持 liunx一般已自带安装

直接上代码:

<?php
$config = array(  
    //"digest_alg" => "sha512",  
    "private_key_bits" => 512,                     //字节数    512 1024  2048   4096 等  
    "private_key_type" => OPENSSL_KEYTYPE_RSA,     //加密类型  
);  
      
//创建公钥和私钥   返回资源  
$res = openssl_pkey_new($config);  
  
//从得到的资源中获取私钥    并把私钥赋给$<span style="font-family: Arial, Helvetica, sans-serif;">privKey</span>  
openssl_pkey_export($res, $privKey);  
  
//<span style="font-family: Arial, Helvetica, sans-serif;">从得到的资源中获取公钥    返回公钥 </span><span style="font-family: Arial, Helvetica, sans-serif;">$pubKey</span><span style="font-family: Arial, Helvetica, sans-serif;">  
$pubKey = openssl_pkey_get_details($res);  
  
$pubKey = $pubKey["key"];  

//var_dump($privKey);  
//var_dump($pubKey);  
var_dump(array('privKey'=>$privKey,'pubKey'=>$pubKey));  
die;  
?>