How to ensure data privacy protection and compliance when connecting to Baidu AI interface in Java development

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;

public class BaiduAIClient {
    private static final String API_URL = "https://aip.baidubce.com/rest/2.0/image-classify/v2/advanced_general";
    private static final String API_KEY = "your_api_key";
    private static final String SECRET_KEY = "your_secret_key";

    public static void main(String[] args) {
        try {
            URL url = new URL(API_URL);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Charset", "UTF-8");
            conn.setDoOutput(true);
            conn.setDoInput(true);

            String param = "access_token=" + getAccessToken() + "&image=" + getImageBase64();

            OutputStream os = conn.getOutputStream();
            os.write(param.getBytes("UTF-8"));
            os.flush();
            os.close();

            int code = conn.getResponseCode();
            if (code == 200) {
                BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                StringBuilder builder = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    builder.append(line);
                }
                reader.close();

                System.out.println(builder.toString());
            } else {
                System.out.println("Request Error: " + code);
            }

            conn.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static String getAccessToken() {
        // 获取百度AI接口的AccessToken
        // ...
    }

    private static String getImageBase64() {
        // 将图像文件转换为Base64编码
        // ...
    }
}

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.SecureRandom;

public class AESUtils {
    private static final String AES_ALGORITHM = "AES";

    public static String encrypt(String data, String key) throws Exception {
        KeyGenerator keyGen = KeyGenerator.getInstance(AES_ALGORITHM);
        SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
        secureRandom.setSeed(key.getBytes());
        keyGen.init(128, secureRandom);
        SecretKey secretKey = keyGen.generateKey();
        byte[] enCodeFormat = secretKey.getEncoded();
        SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, AES_ALGORITHM);
        Cipher cipher = Cipher.getInstance(AES_ALGORITHM);
        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
        byte[] encryptedData = cipher.doFinal(data.getBytes());
        return byte2Hex(encryptedData);
    }

    public static String decrypt(String encryptedData, String key) throws Exception {
        KeyGenerator keyGen = KeyGenerator.getInstance(AES_ALGORITHM);
        SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
        secureRandom.setSeed(key.getBytes());
        keyGen.init(128, secureRandom);
        SecretKey secretKey = keyGen.generateKey();
        byte[] enCodeFormat = secretKey.getEncoded();
        SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, AES_ALGORITHM);
        Cipher cipher = Cipher.getInstance(AES_ALGORITHM);
        cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
        byte[] decryptedData = cipher.doFinal(hex2Byte(encryptedData));
        return new String(decryptedData);
    }

    private static String byte2Hex(byte[] bytes) {
        StringBuilder builder = new StringBuilder();
        for (byte b : bytes) {
            String hex = Integer.toHexString(0xff & b);
            if (hex.length() == 1) {
                builder.append('0');
            }
            builder.append(hex);
        }
        return builder.toString();
    }

    private static byte[] hex2Byte(String hexStr) {
        byte[] bytes = new byte[hexStr.length() / 2];
        for (int i = 0; i < bytes.length; i++) {
            int value = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 2), 16);
            bytes[i] = (byte) value;
        }
        return bytes;
    }
}

public class User {
    private String name;
    private boolean canAccessPrivateData;

    public User(String name, boolean canAccessPrivateData) {
        this.name = name;
        this.canAccessPrivateData = canAccessPrivateData;
    }

    public String getName() {
        return name;
    }

    public boolean canAccessPrivateData() {
        return canAccessPrivateData;
    }
}

public class DataHandler {
    public void processImage(Image image, User user) {
        if (user.canAccessPrivateData()) {
            // 对敏感图像数据进行处理
        } else {
            throw new SecurityException("无权限访问敏感数据");
        }
    }

    public void processAudio(Audio audio, User user) {
        if (user.canAccessPrivateData()) {
            // 对敏感语音数据进行处理
        } else {
            throw new SecurityException("无权限访问敏感数据");
        }
    }
}