有关于 PHP RSA 公钥加密的实现

最近想用 PHP 模拟登陆一个网站练手，但在Javascript中发现了如下RSA 公钥加密的function

function userLogin() {
	var password = $("#password").val(); 	
    if(password.length != 256){
    setMaxDigits(131);
    var key = new RSAKeyPair("010001", '', "00b15fdee0d7ed06c21067d59e65031becca4c3eafe52d891725c75c37dac7ca2d");
    var enpwd = encodeURIComponent(password);
    var result = encryptedString(key, password);
	$("#password").val(result);
}

Google 了一下，都用到了 OpenSSL，我试着用 PHP 写了

function rsa_encode($content)
{
	$public_key = "-----BEGIN PUBLIC KEY-----\n00b15fdee0d7ed06c21067d59e65031becca4c3eafe52d891725c75c37dac7ca2d\n-----END PUBLIC KEY-----"; 
	$openssl_public_encrypt = openssl_public_encrypt($str, $content, $public_key);
    if (!$openssl_public_encrypt)
        throw new \Exception('openssl_public_encrypt failed! ');
    return $content;
}

提示“RSA 公钥不正确”，后来又去搜了一下，这样合成的 public_key 不符合 PKCS 标准，不知道下一步应该如何操作，感谢！

sjlleo

2020-02-27 19:16:56 +08:00

@areless
感谢，我刚刚尝试这么做了
```PHP
function rsa_encode($data)
{

$public_key = "-----BEGIN PUBLIC KEY-----\n00b15fdee0d7ed06c21067d59e65031becca4c3eafe52d891725c75c37dac7ca2d\n-----END PUBLIC KEY-----";
$key = openssl_pkey_get_public ($rsa_public);
$result = str_split ($data , 117);

$str = '';
foreach ($result as $v) {
openssl_public_encrypt ($v , $crypted , $key);
$str .= $crypted;
}

if (! $str) {
throw new \Exception ('Failded RSA Check');
}
}
```
但是它提示
```
Warning: openssl_public_encrypt(): key parameter is not a valid public key in /demo/rsa.php on line 12

Fatal error: Uncaught Exception: Failded RSA Check in /demo/rsa.php:16 Stack trace: #0 /demo/rsa.php(38): rsa_encode() #1 {main} thrown in /demo/rsa.php on line 16
```

sjlleo

2020-02-27 20:18:13 +08:00

@areless
00b15fdee0d7ed06c21067d59e65031becca4c3eafe52d891725c75c37dac7ca2d 解密后是 skhN61Jj6UYfdPlzh0a9EareSj8viurcHR8CgKxl3coFds1B6+tShOFHvduTcJVMlE38ToF0e1ZoxnmGYhm4uNKyB5sr6vpQsl61/TERMydYmV0PHFYbvLxQCx//OenJWNYyh+H8gT+eQX1+gUTH6CBNUSqdRQKtHhr15ZUQxnQDttmS0Da8fNfBjZ9GGejl12x3zYHstfG3Djz8Z4Iir1FVMEKzMn9GJRhSeTGtVW8u/3NbPXIhM29Z7QVrTQK6f2/H+uF/rpH1bZRn86mzEM/7qwD1+NEN0jm3h+uS7hMmQ/qA5egIebFVe9EsUkXuDwl8CBR2M4utroxz+E6shA==，但是放入后依旧提示公钥不可用诶。