白盒密算法java

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

public class AES {
    public static void main(String[] args) throws Exception {
        // 生成密钥
        KeyGenerator keyGen = KeyGenerator.getInstance("AES");
        keyGen.init(128);
        SecretKey secretKey = keyGen.generateKey();

        // 加密数据
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.ENCRYPT_MODE, secretKey);
        byte[] encryptedData = cipher.doFinal("Hello, world!".getBytes());

        // 解密数据
        cipher.init(Cipher.DECRYPT_MODE, secretKey);
        byte[] decryptedData = cipher.doFinal(encryptedData);

        System.out.println("Encrypted data: " + new String(encryptedData));
        System.out.println("Decrypted data: " + new String(decryptedData));
    }
}