How to implement data encryption and decryption in Storm?

10 months ago

Noah Thompson

2 minutes

One possible way to achieve data encryption and decryption in Storm is by using encryption and decryption algorithms to process the data.

Encrypt data: commonly used encryption algorithms such as AES, DES can be utilized to encrypt the data that needs to be secured, resulting in encrypted data.

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

public class EncryptionUtil {
    private static final String ALGORITHM = "AES";
    private static final String KEY = "YourSecretKey";

    public static byte[] encrypt(byte[] data) {
        try {
            SecretKey secretKey = new SecretKeySpec(KEY.getBytes(), ALGORITHM);
            Cipher cipher = Cipher.getInstance(ALGORITHM);
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
            return cipher.doFinal(data);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}

Decrypting data: Decrypting encrypted data to restore the original data.

public class DecryptionUtil {
    private static final String ALGORITHM = "AES";
    private static final String KEY = "YourSecretKey";

    public static byte[] decrypt(byte[] encryptedData) {
        try {
            SecretKey secretKey = new SecretKeySpec(KEY.getBytes(), ALGORITHM);
            Cipher cipher = Cipher.getInstance(ALGORITHM);
            cipher.init(Cipher.DECRYPT_MODE, secretKey);
            return cipher.doFinal(encryptedData);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}

In a Storm topology, encryption and decryption methods can be called where data needs to be encrypted or decrypted, in order to process the data. For example, encrypting data before processing it in a Spout or Bolt, and then decrypting it after processing is complete.