非对称加密

//创建私钥个共钥

<?php//echo phpinfo();exit;//生成私钥对象//$privatekeyobj = openssl_pkey_new();//利用私钥对象并保存成文件//openssl_pkey_export_to_file($privatekeyobj,"./prikey.txt");//获取私钥对象$privatekeyobj = openssl_get_privatekey(file_get_contents("./prikey.txt"));//根据私钥对象生成共钥$publickey = openssl_pkey_get_details($privatekeyobj)['key'];file_put_contents("./pubkey.txt",$publickey);//var_dump($publickey);

//运用

<?php/** * Created by PhpStorm. * Date: 2017/11/30 * Time: 19:54 * @content 利用共钥和私钥实现数据的加密传输 */$pubkey = openssl_get_publickey(file_get_contents("./pubkey.txt"));$str = 'aaa1bbbb2cccc4';//共钥加密openssl_public_encrypt($str,$res,$pubkey);$prikey = openssl_get_privatekey(file_get_contents("./prikey.txt"));openssl_private_decrypt($res,$re,$prikey);var_dump($re);