NodeJS DES ECB使用模块"crypto"对十六进制数据进行加密 [英] NodeJS DES ECB encryption of hex data with module 'crypto'

问题描述

我正在尝试使用 node js模块'crypto'和 DES-ECB算法 加密/解密十六进制数据.在官方的加密"文档中，他们给出了CBC模式下AES-192加密的示例(参见附加代码)，但在ECB模式下不需要iv(初始化向量).我不知道如何使用DES算法修改此代码以在ECB模式下进行加密.

I am trying to encrypt/decrypt hex data using node js module 'crypto' with DES-ECB algorithm. In the official 'crypto' documentation, they give an example of aes-192 encryption in CBC mode (cf attached code) but with the ECB mode no iv (initilization vector) is needed. I don't know how to adapt this code to encrypt in ECB mode with the DES algorithm.

这是node js'crypto'模块的官方文档中提供的JavaScript代码(

Here's the JavaScript code given in the official documentation of node js 'crypto' module (https://nodejs.org/dist/latest-v10.x/docs/api/crypto.html#crypto_class_cipher):

const crypto = require('crypto');

const algorithm = 'aes-192-cbc';
const password = 'Password used to generate key';
// Key length is dependent on the algorithm. In this case for aes192, it is
// 24 bytes (192 bits).
// Use async `crypto.scrypt()` instead.
const key = crypto.scryptSync(password, 'salt', 24);
// Use `crypto.randomBytes()` to generate a random iv instead of the static iv
// shown here.
const iv = Buffer.alloc(16, 0); // Initialization vector.

const cipher = crypto.createCipheriv(algorithm, key, iv);

let encrypted = '';
cipher.on('readable', () => {
  let chunk;
  while (null !== (chunk = cipher.read())) {
    encrypted += chunk.toString('hex');
  }
});
cipher.on('end', () => {
  console.log(encrypted);
  // Prints: e5f79c5915c02171eec6b212d5520d44480993d7d622a7c4c2da32f6efda0ffa
});

cipher.write('some clear text data');
cipher.end();

就我而言，我必须将算法"字段更改为:

In my case I have to change the "algorithm" field to:

const algorithm = 'des-ecb'

但是然后我还必须修改处理iv的部分(因为DES-ECB算法不需要iv)，而且我不知道该怎么做...

But then I also have to adapt the parts dealing with the iv (as no iv is needed with DES-ECB algorithm) and I don't know how to do that...

非常感谢！

推荐答案

您可以尝试这种方法，这应该可以满足您的要求:

You can try this approach, this should do what you want:

const crypto = require('crypto');
const algorithm = 'des-ecb';
const password = 'some password';
// use a hex key here
const key = Buffer.from("d0e276d0144890d3", "hex");

const cipher = crypto.createCipheriv(algorithm, key, null);
let encrypted = cipher.update("Those are my principles, and if you don't like them... well, I have others.", 'utf8', 'hex');
encrypted += cipher.final('hex');
console.log("Encrypted: ", encrypted);

const decipher = crypto.createDecipheriv(algorithm, key, null);
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
console.log("Decrypted: ", decrypted);

这篇关于NodeJS DES ECB使用模块"crypto"对十六进制数据进行加密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！