Question

我正在编写一段用Java加密数据的代码，我需要在nodejs中解密它。我遇到了解密问题。

我将salt +加密的字节加在一起，并在java端的base64中编码。

在节点端我正在解码base64，然后切片盐和加密字节。但我在尝试解密字符串时遇到错误。任何想法？

Java加密：

private Key createKey(final byte[] salt) {
    final PBEKeySpec spec = new PBEKeySpec(KEY,
                                           salt,
                                           20000,
                                           256);
    final SecretKey secretKey;
    secretKey = keyFactory.generateSecret(spec);        
    return new SecretKeySpec(secretKey.getEncoded(), 'AES');
  }

public String encrypt(final String message) {
    final byte[] salt = secureRandom.nextBytes(SALT_LENGTH);
    final Key key = createKey(salt);

    final Cipher encryptingCipher = createCipher(Cipher.ENCRYPT_MODE, key, salt);
    final byte[] messageBytes = message.getBytes(StandardCharsets.UTF_8);
    final byte[] encryptedBytes = doFinal(encryptingCipher, messageBytes);
    final byte[] data = ArrayUtils.addAll(salt, encryptedBytes);
    return BaseEncoding.base64().encode(data);
  }

Nodejs解密：

 const decrypted = new Buffer(data, 'base64').toString('ascii');
    const salt = decrypted.slice(0, AESEncryptor.SALT_LENGTH);
    const encryptedBytes = decrypted.slice(AESEncryptor.SALT_LENGTH);

    crypto.pbkdf2(KEY, salt, 20000, 256, (err, key) => {
      var decipher = crypto.createDecipheriv('aes-256-cbc', key, salt);
      var decoded = decipher.update(encryptedBytes, 'binary', 'utf8') + decipher.final('utf8');
      console.log('decoded', decoded);
    });

这就是我得到的错误：

Error: error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt

从Java到nodejs的AES解密

0 个答案: