Bagaimanakah cara saya menukar kod penyulitan DES ini daripada kod Java kepada JavaScript?

Question

Bagaimana untuk menukar kod Java ini kepada JavaScript?

public static String getSignature(String skey, String iv, String data) throws Exception {
  IvParameterSpec Ⅳ = new IvParameterSpec(iv.getBytes("utf-8"));
  DESKeySpec desKey = new DESKeySpec(skey.getBytes("utf-8"));
  SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
  SecretKey key = keyFactory.generateSecret(desKey);
  Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
  cipher.init(Cipher.ENCRYPT_MODE, key, Ⅳ);
  byte[] databyte = cipher.doFinal(data.getBytes("utf-8"));
  return new String(Base64.getEncoder().encode(databyte));
}

Saya cuba sendiri dan hasilnya:

  function getSignature(
    skey,
    iv,
    data,
  ) {
    const IV = Buffer.from(ivString, 'utf-8');
    const desKey = Buffer.from(skey, 'utf-8');

    const cipher = crypto.createCipheriv('des-cbc', desKey, IV);
    let encrypted = cipher.update(data, 'utf-8', 'base64');
    encrypted += cipher.final('base64');
    return encrypted;
  }

Tetapi saya mendapat ralat ERR_CRYPTO_INVALID_KEYLEN kerana panjang kunci saya bukan 8. Saya rasa kod JavaScript saya tiada bahagian kod Java ini, tetapi saya tidak tahu cara menterjemah bahagian ini kepada JavaScript... :

SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
  SecretKey key = keyFactory.generateSecret(desKey);

Answer 1

const crypto = require('crypto');

function getSignature(skey, iv, data) {
    const IV = Buffer.from(iv, 'utf-8');
    const desKey = Buffer.from(skey, 'utf-8');

    const cipher = crypto.createCipheriv('des', desKey.slice(0, 8), IV);
    let encrypted = cipher.update(data, 'utf-8', 'base64');
    encrypted += cipher.final('base64');
    return encrypted;
}