php - 兼容Javascript和PHP的RSA加密/解密

Question

我想用 Javascript 加密，然后用 PHP 解密。有针对 Javascript 和 PHP 的 RSA 实现，但它们不兼容。我无法在 PHP 中正确解密我用 Javascript 加密的内容。

有人知道可以同时使用 Javascript 和 PHP 的库/代码吗？

谢谢。

Answer 1

试试下面这个简单的例子。

它使用的是开源 javascript 库 https://github.com/ziyan/javascript-rsa

HTML/JavaScript:

<script language="JavaScript" type="text/javascript" src="jsbn.js"></script>
<script language="JavaScript" type="text/javascript" src="rsa.js"></script>

<script language="JavaScript">

    function encryptData(){

        //Don't forget to escape the lines:
        var pem="-----BEGIN PUBLIC KEY-----\
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDfmlc2EgrdhvakQApmLCDOgP0n\
NERInBheMh7J/r5aU8PUAIpGXET/8+kOGI1dSYjoux80AuHvkWp1EeHfMwC/SZ9t\
6rF4sYqV5Lj9t32ELbh2VNbE/7QEVZnXRi5GdhozBZtS1gJHM2/Q+iToyh5dfTaA\
U8bTnLEPMNC1h3qcUQIDAQAB\
-----END PUBLIC KEY-----";

        var key = RSA.getPublicKey(pem);

        element=document.getElementById('password');
        element.value=RSA.encrypt(element.value, key);
    }
</script>

<form method='POST' id='txtAuth' onsubmit='encryptData()'>
    <input type='text' name='username'/>
    <input type='password' name='password' id='password' placeholder="password"/>
    <input name='submit' type='submit' value='Submit'>
</form>

PHP:

<?php

if (isset($_POST['password'])) {

    //Load private key:
    $private = "-----BEGIN RSA PRIVATE KEY-----
    MIICXAIBAAKBgQDfmlc2EgrdhvakQApmLCDOgP0nNERInBheMh7J/r5aU8PUAIpG
    XET/8+kOGI1dSYjoux80AuHvkWp1EeHfMwC/SZ9t6rF4sYqV5Lj9t32ELbh2VNbE
    /7QEVZnXRi5GdhozBZtS1gJHM2/Q+iToyh5dfTaAU8bTnLEPMNC1h3qcUQIDAQAB
    AoGAcbh6UFqewgnpGKIlZ89bpAsANVckv1T8I7QT6qGvyBrABut7Z8t3oEE5r1yX
    UPGcOtkoRniM1h276ex9VtoGr09sUn7duoLiEsp8aip7p7SB3X6XXWJ9K733co6C
    dpXotfO0zMnv8l3O9h4pHrrBkmWDBEKbUeuE9Zz7uy6mFAECQQDygylLjzX+2rvm
    FYd5ejSaLEeK17AiuT29LNPRHWLu6a0zl923299FCyHLasFgbeuLRCW0LMCs2SKE
    Y+cIWMSRAkEA7AnzWjby8j8efjvUwIWh/L5YJyWlSgYKlR0zdgKxxUy9+i1MGRkn
    m81NLYza4JLvb8/qjUtvw92Zcppxb7E7wQJAIuQWC+X12c30nLzaOfMIIGpgfKxd
    jhFivZX2f66frkn2fmbKIorCy7c3TIH2gn4uFmJenlaV/ghbe/q3oa7L0QJAFP19
    ipRAXpKGX6tqbAR2N0emBzUt0btfzYrfPKtYq7b7XfgRQFogT5aeOmLARCBM8qCG
    tzHyKnTWZH6ff9M/AQJBAIToUPachXPhDyOpDBcBliRNsowZcw4Yln8CnLqgS9H5
    Ya8iBJilFm2UlcXfpUOk9bhBTbgFp+Bv6BZ2Alag7pY=
    -----END RSA PRIVATE KEY-----";
    if (!$privateKey = openssl_pkey_get_private($private)) die('Loading Private Key failed');

    //Decrypt
    $decrypted_text = "";
    if (!openssl_private_decrypt(base64_decode($_POST['password']), $decrypted_text, $privateKey)) die('Failed to decrypt data');

    //Decrypted :) 
    var_dump($decrypted_text);

    //Free key
    openssl_free_key($privateKey);
}
?>

尽情享受吧!