Question

我正在尝试将用php编写的mcrypt_encrypt函数转换为node.js，我在node.js中使用CryptoJS并尝试了各种配置选项，我没有任何运气来解决这个问题

PHP代码：

base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128,md5($secretKey),$ldapPwd,MCRYPT_MODE_CFB,$initialVector))

我试过的JavaScript代码不知道我做错了什么：

var encrypted = CryptoJS.AES.encrypt(password, keyBase64,
{
    keySize: 128 / 8,
    iv: iv,
    mode: CryptoJS.mode.CFB,
    padding: CryptoJS.pad.NoPadding
});

Answer 1

密码反馈（CFB）模式是一系列具有段大小参数的分组密码模式。 Mcrypt仅支持CFB8，而CryptoJS仅支持CFB128。它们是不相容的。

我已经实现了CFBb in CryptoJS，它也支持8位段，但它仅针对CryptoJS 3.1.2进行了测试，而不是通过NPM提供的CryptoJS 2版本。

Answer 2

在PHP中，当您使用mcrypt_module_open和Rijndael-128时，您必须传递 32字节密钥和 16字节 IV。

使用nodeJs，您可以使用加密模块，例如：

var crypto = require('crypto');

//Declare our secret key
var key = 'fcda0ssdegfffc9441581bdd86484513dd9cb1547df2jsd';

//Declare our alogrithm
var algorithm = 'AES-256-CFB';

//Generate IV to hex format, so 8 * 2 = 16 bytes
var iv = crypto.randomBytes(8).toString('hex');

//Declare our string to encrypt
var password = 'HELLO WORLD';


var handler = {};

handler.encrypt64 = function(algorithm, key, vector, password){

    //create a cipher with an IV
    var cipher = crypto.createCipheriv(algorithm, key.substr(0,32), iv);

    //Encrypt our password from utf8 to hex
    var encrypted = cipher.update(password, 'utf8', 'base64'); 

    //Return any remaining enciphered data to hex format
    encrypted += cipher.final('base64');

    //Return a base64 String
    return encrypted;
};

handler.decrypt64 = function(algorithm, key, vector, password){

    //create a decipher with an IV
    var decipher = crypto.createDecipheriv(algorithm, key.substr(0, 32), iv);

    //Decrypt our encode data from base64 to utf8
    var decrypted = decipher.update(encode, 'base64', 'utf8');

    decrypted += decipher.final('utf8');


    //Return a utf8 string
    return decrypted;
};

var encode = handler.encrypt64(algorithm, key, iv, password);

var decode = handler.decrypt64(algorithm, key, iv, encode);

在CryptoJS中的CFB模式函数中的mcrypt_encrypt

2 个答案: