将Javascript加密逻辑转换为PHP(可能是AES方法) [英] Convert Javascript encryption logic to PHP (Probably AES Method)

问题描述

我在将以下javascript加密逻辑转换为PHP时遇到问题，无法在Internet上找到此javascript库，因此没有文档或从哪里开始的线索.

I'm having issue to convert following javascript encryption logic to PHP, this javascript library cannot be found on internet so there is no documentation or clue where to start.

似乎加密使用的是AES方法，但是这很奇怪，因为AES仅接受输入字符串和机密，iv与javascript上的变量 s 不匹配(不是16位)

It seem the encryption is using AES method but it weird because AES only accept input string and secret, the iv didn't match the variable s on the javascript (not 16bits)

function doCheckR() {
  var string= "10000395351475";
  console.log("this is plain processing of string :  "+string);
  var a = ManualJS.jun.Des.parse("79540e250fdb16afac03e19c46dbdeb3"),
    s = ManualJS.jun.Des.parse("eb2bb9425e81ffa942522e4414e95bd0"),
    result = ManualJS.MDX.goinstring(string, a, {
        ii: s
    });
    console.log("this is a :  "+a);
    console.log("this is s :  "+s);
    console.log("this is result :  "+result);
  result = result.rabbittext.toString(ManualJS.jun.Text21);
  console.log("final result for urlencoded :  "+encodeURIComponent(result));
}

https://jsfiddle.net/8swegkv6/3/

谢谢

推荐答案

以下代码是简单的AES CBC加密/解密，没有任何适当的异常处理，并且仅用于教育目的.

The following code is simple AES CBC en-/decryption without any proper exception handling and for educational purposes only.

所有功劳归@Topaco ，后者检查了算法&模式，键和iv.

All credits go to @Topaco who examined the algorithm & mode, key and iv.

请不要在生产环境中使用此代码，因为它使用静态键& iv！

结果:

* * * encryption * * *
ciphertext:      lOv3As5iF/wk/1LYB+68gw==
result urlencod: lOv3As5iF%2Fwk%2F1LYB%2B68gw%3D%3D
result expected: lOv3As5iF%2Fwk%2F1LYB%2B68gw%3D%3D
* * * decryption * * *
decryptedtext: 10000395351475
string       : 10000395351475

代码:

<?php
echo 'https://stackoverflow.com/questions/63447664/convert-javascript-encryption-logic-to-php-probably-aes-method' . PHP_EOL;
$string = "10000395351475";
$aKey = "79540e250fdb16afac03e19c46dbdeb3";
$sIv = "eb2bb9425e81ffa942522e4414e95bd0";
// encryption
echo '* * * encryption * * *' . PHP_EOL;
$ciphertext = openssl_encrypt($string, "aes-128-cbc", hex2bin($aKey), 0, hex2bin($sIv));
echo 'ciphertext:      ' . $ciphertext . PHP_EOL;
$ciphertextUrlencoded = urlencode($ciphertext);
echo 'result urlencod: ' . $ciphertextUrlencoded . PHP_EOL;
echo 'result expected: ' . 'lOv3As5iF%2Fwk%2F1LYB%2B68gw%3D%3D' . PHP_EOL;
// decryption
echo '* * * decryption * * *' . PHP_EOL;
$decryptedtext = openssl_decrypt(urldecode($ciphertextUrlencoded), "aes-128-cbc", hex2bin($aKey), 0, hex2bin($sIv));
echo 'decryptedtext: ' . $decryptedtext . PHP_EOL;
echo 'string       : ' . $string . PHP_EOL;
?>

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