How to generate public and private keys in php (code)

The content of this article is about how PHP generates public and private keys (code). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

<?php
//http://www.lampol-blog.com/detail/aid/ZDk5MmFNZ2pJL1pROW5QZU9KZ2FWdVlFTDVHRnRmZm4rNDMzSFlHNg%3D%3D 各种秘钥生成的教程
//生成密钥
$opensslConfigPath = "D:\phpstudy\PHPTutorial\Apache\conf\openssl.cnf";	
$config = array(
    "digest_alg" => "sha512",
    "private_key_bits" =>2048,
    "private_key_type" => OPENSSL_KEYTYPE_RSA,
	&#39;config&#39;=> $opensslConfigPath
);
 
 
//创建密钥对
$res = openssl_pkey_new($config);
//生成私钥
openssl_pkey_export($res, $privkey, null, $config);
//生成公钥
$pubKey = openssl_pkey_get_details($res)[&#39;key&#39;];
print_r($privkey);
echo &#39;<p style="height:100px;background:red">1</p>&#39;;
print_r($pubKey);
file_put_contents(&#39;private.key&#39;,$privkey);
file_put_contents(&#39;public.key&#39;,$pubKey);
?>

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