如何使用PHP mcrypt进行加密并使用节点加密进行解密

时间:2013-08-11 20:49:38

标签: php javascript node.js openssl mcrypt

我有一些PHP代码可以生成一些密文,如下所示:

<?php
$data = '12345678123456781234567812345678123456781234567812345678123456781234567812345678';

$ciphertext = mcrypt_encrypt('rijndael-128', 'M02cnQ51Ji97vwT4', $data, 'ecb');

echo base64_encode($ciphertext);
?>

产地:

6tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Tq0nruhoXVfXZf8UThqEt06tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Q=

我知道ECB不是用于此类数据的最佳模式,但我不是加密它的人。

我遇到的麻烦是node-crypto试图解密它。我的节点脚本如下:

var crypto = require("crypto");    

var data = "6tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Tq0nruhoXVfXZf8UThqEt06tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Q=";

var out = '';

var decipher = crypto.createDecipher("aes-256-ecb", "M02cnQ51Ji97vwT4");

decipher.setAutoPadding(false); //this needs to be set otherwise i get an error:06065064:bad decrypt

out += decipher.update(data, "base64", "ascii");

out += decipher.final("ascii");

console.log(out);

产地:

"3i<1pzV7A

      vnE"3i<1pzV7A

                   vnE"3i<1pzV7A

                                vnE"3i<1pzV7A

                                             vnE"3i<1pzV7A

                                                          vnE

我不知道这里出了什么问题,原始数据的重复模式被恢复但是不正确。我无法在openssl中找到等效的“rijndael-128”,并且它似乎必须是'aes-256-ecb',并且不需要IV,因为它是ECB。如何让这两个库一起工作?

谢谢,J

2 个答案:

答案 0 :(得分:1)

https://github.com/tugrul/node-mcrypt

var mcrypt = require('mcrypt');

var bfEcb = new mcrypt.MCrypt('rijndael-128', 'ecb');
bfEcb.open('M02cnQ51Ji97vwT4');

var ciphertext = new Buffer('6tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Tq0nruhoXVfXZf8UThqEt06tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Q=', 'base64');
var plaintext = bfEcb.decrypt(ciphertext);
console.log(plaintext.toString());

答案 1 :(得分:1)

试试这个:

var crypto = require("crypto");    
var data = "6tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Tq0nruhoXVfXZf8UThqEt06tJ67oaF1X12X/FE4ahLdOrSeu6GhdV9dl/xROGoS3Q=";

var out = '';

var decipher = crypto.createDecipheriv("aes-256-ecb", "M02cnQ51Ji97vwT4", '');
out += decipher.update(data, "base64");
out += decipher.final();

console.log(out);

在我的情况下,使用空的第三个参数(所谓的初始化向量)将createDecipher(...)更改为createDecipheriv(注意 iv 结尾)。在这种情况下,删除setAutoPadding(false)。