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How to implement php rsa

藏色散人Original: 2020-07-31 10:08:523003browse

php rsa implementation method: first create "rsa_private_key.pem" and "rsa_public_key.pem"; then determine whether the private key and public key are available; then obtain the data to be encrypted; and finally convert it through base64 encoding Encrypted special characters are enough.

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php RSA simple implementation

This is rsa_private_key.pem

This is rsa_public_key.pem

Just load it below

<?php
#author:zk
#data:2017-09-11
#note:php rsa secret
$public_key = file_get_contents(&#39;./rsa_public_key.pem&#39;);
$private_key = file_get_contents(&#39;./rsa_private_key.pem&#39;);
//这个函数可用来判断私钥是否是可用的
$private_key = openssl_pkey_get_private($private_key);
//这个函数可用来判断公钥是否是可用的
$public_key = openssl_pkey_get_public($public_key);
//要加密的数据
$data = "这是测试";
echo &#39;加密的数据：&#39;.$data.&#39;<br>&#39;;
//私钥加密后的数据
openssl_private_encrypt($data,$encrypted,$private_key);
//加密后的内容通常含有特殊字符，需要base64编码转换下
$encrypted = base64_encode($encrypted);
echo "私钥加密后的数据:".$encrypted.&#39;<br>&#39;;  
//公钥解密  
openssl_public_decrypt(base64_decode($encrypted), $decrypted, $public_key);
echo "公钥解密后的数据:".$decrypted.&#39;<br>&#39;;  
  
//----相反操作。公钥加密 
openssl_public_encrypt($data, $encrypted, $public_key);
$encrypted = base64_encode($encrypted);  
echo "公钥加密后的数据:".$encrypted.&#39;<br>&#39;;
  
openssl_private_decrypt(base64_decode($encrypted), $decrypted, $private_key);//私钥解密  
echo "私钥解密后的数据:".$decrypted.&#39;<br>&#39;;

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