Java でのソーシャル エンジニアリング攻撃から保護する

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;

public class EncryptionUtils {
    private static final String KEY = "MySecretKey12345";

    public static String encrypt(String data) {
        try {
            SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(), "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);

            byte[] encryptedBytes = cipher.doFinal(data.getBytes());
            return Base64.getEncoder().encodeToString(encryptedBytes);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static String decrypt(String encryptedData) {
        try {
            SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(), "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            cipher.init(Cipher.DECRYPT_MODE, secretKey);

            byte[] decryptedBytes = cipher.doFinal(Base64.getDecoder().decode(encryptedData));
            return new String(decryptedBytes);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

public class Main {
    public static void main(String[] args) {
        String password = "password123";
        String encryptedPassword = EncryptionUtils.encrypt(password);
        System.out.println("加密后的密码：" + encryptedPassword);

        String decryptedPassword = EncryptionUtils.decrypt(encryptedPassword);
        System.out.println("解密后的密码：" + decryptedPassword);
    }
}

public class InputValidation {
    public static boolean isEmailValid(String email) {
        String regex = "^[\w.-]+@[\w.-]+\.[a-zA-Z]{2,}$";
        return email.matches(regex);
    }

    public static boolean isPasswordValid(String password) {
        String regex = "^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$";
        return password.matches(regex);
    }

    public static boolean isPhoneNumberValid(String phoneNumber) {
        String regex = "^\d{11}$";
        return phoneNumber.matches(regex);
    }
}

public class Main {
    public static void main(String[] args) {
        String email = "example@test.com";
        boolean isEmailValid = InputValidation.isEmailValid(email);
        System.out.println("邮箱是否有效：" + isEmailValid);

        String password = "Password123";
        boolean isPasswordValid = InputValidation.isPasswordValid(password);
        System.out.println("密码是否有效：" + isPasswordValid);

        String phoneNumber = "12345678901";
        boolean isPhoneNumberValid = InputValidation.isPhoneNumberValid(phoneNumber);
        System.out.println("手机号是否有效：" + isPhoneNumberValid);
    }
}

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .authorizeRequests()
                .antMatchers("/admin/**").hasRole("ADMIN")
                .antMatchers("/**").permitAll()
                .and()
                .formLogin();
    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth
                .inMemoryAuthentication()
                .withUser("admin").password("{noop}admin123").roles("ADMIN")
                .and()
                .withUser("user").password("{noop}user123").roles("USER");
    }
}

@RestController
public class AdminController {
    @GetMapping("/admin")
    public String admin() {
        return "Welcome, admin!";
    }
}

@RestController
public class UserController {
    @GetMapping("/user")
    public String user() {
        return "Welcome, user!";
    }
}

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}