rsa报错 rsa routines:RSA_EAY_PUBLIC_DECRYPT:padding check failed"

[qq_35582115]

<?php

$data = '{"SIGN":"cjcI6OjHzwFTEH4mGQfhMmIK1ZM0giXqQPi5QEQv65snfnQH+OflG6BtNoDn/9dDcarVDXzg56C3Z3nq4crI91HwIsLJdPSkm4+4wtpzSIgmz8vRqJFbwRG6bbmbRYeAkiqNj8NxZgsHp+dOLKE/ZU9r3uqWJ9qubQySZ70m6VM=","MERCHANT":"100010","CER":"YYYcu/XHd/S9zqH02AwGL7+lOQ0emkH54RXaS7ZtATof3Zj4DvXEekw1h5xsKz6g0kP/D/YFzwg6zLrqMe3zGGImDqW93/gvAAHamLT5iXSBSNB0DJ6dJ0GsPJQx9wpYemKcf6+HMWB6TvngyETcoEjiWBB67sThB+4GISJVbjs=","DATA":"x9kBkxXnZ2upPbfkd4J6fQFQcIDGi+d5aFVkYwRM3HDy5jQQKL2HuWbFv07BBR6btDHOKNdDIwKBAKL+mvfpw8sEL4tmAqL2f0iztzYRPt/5OhOP+P3R/R5sa0P8xfpRHEF/GRRCRGYUsSjM6/QR8P/dK9nebylAaYZRPhZwjgdIpjCFqJl2jnB8X43iONTPiO3AOt5Zfzn/C2+E1XEcahhSJI1Ue07vv6dB5vRixJZOKJ1DPOSibkS04NFyezqMRztcq/yf95o9asraNwSGkw=="}';
$fp = fopen("./rsa_private_key.pem", "r"); //你的私钥文件路径
$private_key = fread($fp, 8192);
fclose($fp);
$fp1 = fopen("./rsa_public_key.pem", "r"); //你的公钥文件路径
$public_key = fread($fp1, 8192);
fclose($fp1);
//echo $private_key;

$pi_key = openssl_pkey_get_private($private_key);//这个函数可用来判断私钥是否是可用的，可用返回资源id Resource id
$pu_key = openssl_pkey_get_public($public_key);//这个函数可用来判断公钥是否是可用的

$json_arr = json_decode($data, true);
$data1 = $json_arr['MERCHANT'] . $json_arr['CER'] . $json_arr['DATA'];

$data2 = base64_decode($json_arr['SIGN']);
$res = openssl_verify($data1,$data2,$pu_key);
var_dump(openssl_error_string());
var_dump($res);
die;
$cer = "YYYcu/XHd/S9zqH02AwGL7+lOQ0emkH54RXaS7ZtATof3Zj4DvXEekw1h5xsKz6g0kP/D/YFzwg6zLrqMe3zGGImDqW93/gvAAHamLT5iXSBSNB0DJ6dJ0GsPJQx9wpYemKcf6+HMWB6TvngyETcoEjiWBB67sThB+4GISJVbjs=";
$result= openssl_private_decrypt($cer,$str, $pi_key);//私钥解密
var_dump(openssl_error_string());
var_dump($result);