java aes加密登录账号

以下是一个Java AES加密登录账号的示例代码：

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.security.MessageDigest;
import java.util.Base64;

public class AesEncryption {

    private static final String SECRET_KEY = "mysecretkey12345";
    private static final String INIT_VECTOR = "encryptionIntVec";

    public static String encrypt(String value) throws Exception {
        IvParameterSpec iv = new IvParameterSpec(INIT_VECTOR.getBytes("UTF-8"));
        SecretKeySpec keySpec = new SecretKeySpec(SECRET_KEY.getBytes("UTF-8"), "AES");

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, keySpec, iv);

        byte[] encrypted = cipher.doFinal(value.getBytes());
        return Base64.getEncoder().encodeToString(encrypted);
    }

    public static String decrypt(String encrypted) throws Exception {
        IvParameterSpec iv = new IvParameterSpec(INIT_VECTOR.getBytes("UTF-8"));
        SecretKeySpec keySpec = new SecretKeySpec(SECRET_KEY.getBytes("UTF-8"), "AES");

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.DECRYPT_MODE, keySpec, iv);

        byte[] original = cipher.doFinal(Base64.getDecoder().decode(encrypted));
        return new String(original);
    }

    public static void main(String[] args) throws Exception {
        String username = "myusername";
        String password = "mypassword";

        String encryptedUsername = encrypt(username);
        String encryptedPassword = encrypt(password);

        System.out.println("Encrypted username: " + encryptedUsername);
        System.out.println("Encrypted password: " + encryptedPassword);

        // Simulating login process
        String inputUsername = "myusername";
        String inputPassword = "mypassword";

        String hashedUsername = encrypt(inputUsername);
        String hashedPassword = encrypt(inputPassword);

        if (hashedUsername.equals(encryptedUsername) && hashedPassword.equals(encryptedPassword)) {
            System.out.println("Login successful!");
        } else {
            System.out.println("Login failed!");
        }
    }
}

该示例使用AES/CBC/PKCS5PADDING加密算法进行加密和解密，并使用Base64编码将加密后的字节数组转换为字符串。在主方法中，我们首先使用encrypt方法对用户名和密码进行加密，并将加密后的值存储在变量encryptedUsername和encryptedPassword中。然后，我们模拟了登录过程，将输入的用户名和密码进行加密并与存储的加密值进行比较。如果它们匹配，我们将输出“登录成功！”否则，我们将输出“登录失败！”。