加密PHP，使用Javascript解密（cryptojs） [英] Encrypt with PHP, Decrypt with Javascript (cryptojs)

问题描述

我遇到了基本的加密/解密问题。我已经看了一下工作示例，但还没有找到一个工作示例。

- 我将在php中进行加密，使用cryptojs解密一个小层的安全性

 < script src =http://crypto-js.googlecode.com/svn/tags/3.1。 2 /生成/汇总/ aes.js> 
 < 
 $ text =这是这里的文字; 
 $ key =encryptionkey; 
 
 $ msgEncrypted = mcrypt_encrypt（MCRYPT_RIJNDAEL_256，$ key，$ text，MCRYPT_MODE_CBC，mcrypt_create_iv（mcrypt_get_iv_size（MCRYPT_RIJNDAEL_256，MCRYPT_MODE_ECB），MCRYPT_RAND））; 
 $ msgBase64 = trim（base64_encode（$ msgEncrypted））; 
 
 echo< h2> PHP< / h2>; 
 echo< p>加密：< / p>; 
 echo $ msgEncrypted; 
 echo< p> Base64：< / p>; 
 echo $ msgBase64; 
？> 
 
< p> AES解密< / p> 
< script> 
 var key ='encryptionkey'; 
 var encrypted =<？php echo $ msgBase64？>; 
 //尝试过var base64decode = CryptoJS.enc.Base64.parse（encrypted）; 
 var decryptpted = CryptoJS.AES.decrypt（encrypted，key）; 
 console.log（decryptpted.toString（CryptoJS.enc.Utf8））; 
< / script> 
  

我错过了哪一步？

解决方案

我需要相同的东西，我写了一个适用于CryptoJS 3.x和PHP的简短库，支持openssl。希望这有帮助，来源和示例文件在这里 https://github.com/brainfoolong/cryptojs-aes- php

PHP Lib

  / ** 
 *从CryptoJS json编码字符串解密数据
 * 
 * @param mixed $ passphrase 
 * @param mixed $ jsonString 
 * @return mixed 
 * / 
函数cryptoJsAesDecrypt（$ passphrase，$ jsonString）{
 $ jsondata = json_decode（$ jsonString，true）; 
 $ salt = hex2bin（$ jsondata [s]）; 
 $ ct = base64_decode（$ jsondata [ct]）; 
 $ iv = hex2bin（$ jsondata [iv]）; 
 $ concatedPassphrase = $ passphrase $ salt; 
 $ md5 = array（）; 
 $ md5 [0] = md5（$ concatedPassphrase，true）; 
 $ result = $ md5 [0]; （$ i = 1; $ i< 3; $ i ++）{
 $ md5 [$ i] = md5（$ md5 [$ i  -  1] $ concatedPassphrase，true） 
 $ result。= $ md5 [$ i]; 
} 
 $ key = substr（$ result，0，32）; 
 $ data = openssl_decrypt（$ ct，'aes-256-cbc'，$ key，true，$ iv）; 
 return json_decode（$ data，true）; 
} 
 
 / ** 
 *加密cryptojs兼容的json编码字符串
 * 
 * @param mixed $ passphrase 
 * @param mixed $ value 
 * @return string 
 * / 
函数cryptoJsAesEncrypt（$ passphrase，$ value）{
 $ salt = openssl_random_pseudo_bytes（8）; 
 $ salted =''; 
 $ dx =''; 
 while（strlen（$ salted）< 48）{
 $ dx = md5（$ dx。$ passphrase。$ salt，true）; 
 $ salted。= $ dx; 
} 
 $ key = substr（$ salted，0，32）; 
 $ iv = substr（$ salted，32,16）; 
 $ encrypted_data = openssl_encrypt（json_encode（$ value），'aes-256-cbc'，$ key，true，$ iv）; 
 $ data = array（ct=> base64_encode（$ encrypted_data），iv=> bin2hex（$ iv），s=> bin2hex（$ salt））; 
 return json_encode（$ data）; 
} 
  

Javascript Lib

  var CryptoJSAesJson = {
 stringify：function（cipherParams）{
 var j = {ct：cipherParams.ciphertext.toString（CryptoJS.enc.Base64）}; 
 if（cipherParams.iv）j.iv = cipherParams.iv.toString（）; 
 if（cipherParams.salt）j.s = cipherParams.salt.toString（）; 
返回JSON.stringify（j）; 
}，
 parse：function（jsonStr）{
 var j = JSON.parse（jsonStr）; 
 var cipherParams = CryptoJS.lib.CipherParams.create（{ciphertext：CryptoJS.enc.Base64.parse（j.ct）}）; 
 if（j.iv）cipherParams.iv = CryptoJS.enc.Hex.parse（j.iv）
 if（js）cipherParams.salt = CryptoJS.enc.Hex.parse（js）
 return cipherParams; 
} 
} 
  

示例Javascript

  var encrypted = CryptoJS.AES.encrypt（JSON.stringify（value to encrypt），my passphrase，{format：CryptoJSAesJson}）toString（） ; 
 var decryptpted = JSON.parse（CryptoJS.AES.decrypt（encrypted，my passphrase，{format：CryptoJSAesJson}）。toString（CryptoJS.enc.Utf8））; 
  

示例PHP

 code> $ encrypted = cryptoJsAesEncrypt（我的密码，加密值）; 
 $ decryptpted = cryptoJsAesDecrypt（我的密码，$ encrypted）; 
  

I'm having trouble with basic encryption/decryption. I've looked all around for a working example but haven't quite found a working example.

-I will be encrypting in php, decrypting with cryptojs for a small layer of security

<script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/aes.js">
<?
$text = "this is the text here";
$key = "encryptionkey";

$msgEncrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_CBC, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND));
$msgBase64 = trim(base64_encode($msgEncrypted));

echo "<h2>PHP</h2>";
echo "<p>Encrypted:</p>";
echo $msgEncrypted;
echo "<p>Base64:</p>";
echo $msgBase64;
 ?>

<p>AES Decrypt</p>
<script> 
    var key = 'encryptionkey';
    var encrypted = "<?php echo $msgBase64 ?>";
    //tried  var base64decode = CryptoJS.enc.Base64.parse(encrypted); 
    var decrypted = CryptoJS.AES.decrypt(encrypted, key);
    console.log( decrypted.toString(CryptoJS.enc.Utf8) );
</script>

Which step am I missing?

解决方案

I've required the same thing and i wrote a short library that works for CryptoJS 3.x and PHP with openssl support. Hope this helps, source plus example files here https://github.com/brainfoolong/cryptojs-aes-php

PHP Lib

/**
* Decrypt data from a CryptoJS json encoding string
*
* @param mixed $passphrase
* @param mixed $jsonString
* @return mixed
*/
function cryptoJsAesDecrypt($passphrase, $jsonString){
    $jsondata = json_decode($jsonString, true);
    $salt = hex2bin($jsondata["s"]);
    $ct = base64_decode($jsondata["ct"]);
    $iv  = hex2bin($jsondata["iv"]);
    $concatedPassphrase = $passphrase.$salt;
    $md5 = array();
    $md5[0] = md5($concatedPassphrase, true);
    $result = $md5[0];
    for ($i = 1; $i < 3; $i++) {
        $md5[$i] = md5($md5[$i - 1].$concatedPassphrase, true);
        $result .= $md5[$i];
    }
    $key = substr($result, 0, 32);
    $data = openssl_decrypt($ct, 'aes-256-cbc', $key, true, $iv);
    return json_decode($data, true);
}

/**
* Encrypt value to a cryptojs compatiable json encoding string
*
* @param mixed $passphrase
* @param mixed $value
* @return string
*/
function cryptoJsAesEncrypt($passphrase, $value){
    $salt = openssl_random_pseudo_bytes(8);
    $salted = '';
    $dx = '';
    while (strlen($salted) < 48) {
        $dx = md5($dx.$passphrase.$salt, true);
        $salted .= $dx;
    }
    $key = substr($salted, 0, 32);
    $iv  = substr($salted, 32,16);
    $encrypted_data = openssl_encrypt(json_encode($value), 'aes-256-cbc', $key, true, $iv);
    $data = array("ct" => base64_encode($encrypted_data), "iv" => bin2hex($iv), "s" => bin2hex($salt));
    return json_encode($data);
}

Javascript Lib

var CryptoJSAesJson = {
    stringify: function (cipherParams) {
        var j = {ct: cipherParams.ciphertext.toString(CryptoJS.enc.Base64)};
        if (cipherParams.iv) j.iv = cipherParams.iv.toString();
        if (cipherParams.salt) j.s = cipherParams.salt.toString();
        return JSON.stringify(j);
    },
    parse: function (jsonStr) {
        var j = JSON.parse(jsonStr);
        var cipherParams = CryptoJS.lib.CipherParams.create({ciphertext: CryptoJS.enc.Base64.parse(j.ct)});
        if (j.iv) cipherParams.iv = CryptoJS.enc.Hex.parse(j.iv)
        if (j.s) cipherParams.salt = CryptoJS.enc.Hex.parse(j.s)
        return cipherParams;
    }
}

Example Javascript

var encrypted = CryptoJS.AES.encrypt(JSON.stringify("value to encrypt"), "my passphrase", {format: CryptoJSAesJson}).toString();
var decrypted = JSON.parse(CryptoJS.AES.decrypt(encrypted, "my passphrase", {format: CryptoJSAesJson}).toString(CryptoJS.enc.Utf8));

Example PHP

$encrypted = cryptoJsAesEncrypt("my passphrase", "value to encrypt");
$decrypted = cryptoJsAesDecrypt("my passphrase", $encrypted);

这篇关于加密PHP，使用Javascript解密（cryptojs）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！