Detailed explanation of php pki encryption technology (openssl) examples

怪我咯
Release: 2023-03-12 19:42:01
Original
1276 people have browsed it

This article is a detailed analysis and introduction to the pki encryption technology (openssl) in php. Friends in need can refer to it

The code is as follows:

<?php
//pki加密
//使用pki加密需要开启 openssl扩展
//php.ini extension = php_openssl.dll扩展
/*pki模式是
 * 公钥加密,私钥解密;
 * 私钥加密,公钥解密;
 */
//私钥加密,公钥解密
//客户端
//$data数据
$data = &#39;abcd&#39;;
//获取私钥 $priv_key_id
$priv_key_id = openssl_get_privatekey(file_get_contents(&#39;99bill-rsa.pem&#39;, r));
//获取公钥  $pub_key_id
$pub_key_id = openssl_get_publickey(file_get_contents(&#39;99bill-rsa.cer&#39;, r));
//$data首选通过SHA1哈希加密,然后通过$priv_key_id私钥加密,生成签名$signature
//$signature就是加密过的签名
//openssl_sign()加密函数,至于它的解密方法我不知道??????????????????????
openssl_sign($data, $signature, $priv_key_id, OPENSSL_ALGO_SHA1);
//还有两种加密函数,而且这两种加密函数有解密方法,知道
//第一种:私钥加密,公钥解密
//$data要加密的数据,$crypted是加密生成的数据,$decrypted是解密生成的数据;  $data与$decrypted值相同
//通过$priv_key_id私钥加密,生成$crypted;
openssl_private_encrypt($data, $crypted, $priv_key_id);
echo $crypted;
//通过$pub_key_id公钥解密,生成$decrypted
openssl_public_decrypt($crypted, $decrypted , $pub_key_id);
//第二种:公钥加密,私钥解密
//$data要加密的数据,$crypted是加密生成的数据,$decrypted是解密生成的数据;  $data与$decrypted值相同
//通过$pub_key_id公钥加密,生成$crypted;
openssl_public_encrypt($data, $crypted, $pub_key_id);
//通过$priv_key_id私钥解密,生成$decrypted
openssl_private_decrypt($crypted, $decrypted, $priv_key_id);
//注意事项,我这边的获取公钥与私钥的文件是不对应的
//正常情况,获取公钥与私钥文件是一一对应的,这里我使用快钱的。
//快钱给了私钥生成文件,对应的公钥生成文件在快钱那边
//快钱给了公钥生成文件,对应的私钥生成文件在快钱那边
//也就是缺少了一个公钥生成文件和一个私钥生成文件
//我始终没找到一个一一对应的私钥、公钥生成文件,如果你找的了发我一份,谢谢。
// openssl_verify()方法验证签名是否正确(私钥加密生成的数据返回来,用对应的公钥验证),只有这一种情况。
// $signature公钥加密生成的数据,$data原始数据,成功返回1,失败返回0,错误返回-1
// $pub_key_id公钥
openssl_verify($data, $signature, $pub_key_id);
//从内存中释放私钥或公钥
openssl_free_key($priv_key_id);
openssl_free_key($pub_key_id);
Copy after login

Generate private and public keys
genrsa -out private-rsa.pem
rsa -in private-rsa.pem -pubout -out public-rsa.cer

The above is the detailed content of Detailed explanation of php pki encryption technology (openssl) examples. For more information, please follow other related articles on the PHP Chinese website!

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 Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template