如何使用aes-128-cbc算法实现CryptoJS解密？

Question

下面是我到现在为止所尝试的

 function decrypt_core_AES_CBC(password, ciphertext) {
   var iv  = CryptoJS.lib.WordArray.random(128/8);
   var message = CryptoJS.AES.decrypt(ciphertext, password, { mode:    CryptoJS.mode.CBC, iv: password });

  console.log("The current iv is: " + iv.toString() );
  return CryptoJS.enc.Utf8.stringify(message);
 }


var data = '6615702f2dd672f643fd57623d6362a510a98faf4b1c068fd468b525a5fa5471809852a0f9cb7936ce3d3892c233b8c48ce2608f16ce6fa66005b2d97689fbb4';
var key = '3426D38AB846B62B9C236D288778D997';
var dec = decrypt_core_AES_CBC(key, data);

console.log(dec);

下面是适用于我的node.js代码。在CryptoJ中，我没有成功地实现类似的功能。根据我的理解，crypto是内置库，其中的节点在其上有自己的包装器。

var crypto = require('crypto');
var defaultAlgorithm= 'aes-128-cbc';
var defaultFormat= 'hex';
var ivLength= 16;
function decode (data, key, algorithm, format) {

    // Make sure the data is a buffer object
    if (data instanceof Buffer) {
        data = data.toString();
    }

    // Get defaults if needed
    algorithm = algorithm || defaultAlgorithm;
    format = format || defaultFormat;

    ivLength = ivLength * 2;

    // Get the initialization vector
    var iv = new Buffer(data.substring(0, ivLength), 'hex');

    // Remove the iv from the data
    data = data.substring(ivLength);
    var decipher = crypto.createDecipheriv(algorithm, new Buffer(key, 'hex'), iv);
    var decrypted = decipher.update(data, format, 'utf8') + decipher.final('utf8');

    return decrypted;
}

var data ='6615702f2dd672f643fd57623d6362a510a98faf4b1c068fd468b525a5fa5471809852a0f9cb7936ce3d3892c233b8c48ce2608f16ce6fa66005b2d97689fbb4';
var key = '3426D38AB846B62B9C236D288778D997';
var dec = decode(data, key, defaultAlgorithm, defaultFormat);

console.log(dec);

Answer 1

您有三个问题：

>

CryptoJS支持两种类型的加密/解密：从密码派生的密钥和直接传递的密钥。您希望从密钥执行此操作，因此需要将十六进制编码的密钥字符串解析为CryptoJS的本机格式，然后将其传递给decrypt()函数：

key = CryptoJS.enc.Hex.parse(key);

另外，不要混淆密钥和密码。

var iv = CryptoJS.enc.Hex.parse(ciphertext.slice(0, 32));
ciphertext = CryptoJS.enc.Hex.parse(ciphertext.slice(32));

var message = CryptoJS.AES.decrypt({
    ciphertext: ciphertext
}, key, {
    iv: iv
});