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import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import java.util.Base64;

public class BlowFishCipher {
    public static void main(String[] args) throws Exception {
        // Generate Blowfish key
        KeyGenerator keyGenerator = KeyGenerator.getInstance("Blowfish");
        SecretKey secretKey = keyGenerator.generateKey();

        // Initialize cipher for encryption
        Cipher cipher = Cipher.getInstance("Blowfish");
        cipher.init(Cipher.ENCRYPT_MODE, secretKey);

        // Input text to encrypt
        String inputText = "Hello World";
        byte[] encrypted = cipher.doFinal(inputText.getBytes());

        // Convert encrypted bytes to Base64 for readable output
        String encryptedText = Base64.getEncoder().encodeToString(encrypted);

        // Initialize cipher for decryption
        cipher.init(Cipher.DECRYPT_MODE, secretKey);
        byte[] decrypted = cipher.doFinal(encrypted);

        // Convert decrypted bytes back to string
        String decryptedText = new String(decrypted);

        // Print results
        System.out.println("Original String: " + inputText);
        System.out.println("Encrypted (Base64): " + encryptedText);
        System.out.println("Decrypted: " + decryptedText);
    }
}