在Javaweb项目中用MVC模式进行后端管理员RSA加密登录具体代码实现
时间: 2023-05-28 13:01:49 浏览: 59
在后端管理员RSA加密登录的具体代码实现中,我们需要采用MVC模式。
首先,我们需要建立一个Model类,定义管理员的用户名和密码,以及RSA加密过程中需要使用的秘钥。该类的代码实现如下:
```
public class AdminModel {
private String userName;
private String password;
private String privateKey;
private String publicKey;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPrivateKey() {
return privateKey;
}
public void setPrivateKey(String privateKey) {
this.privateKey = privateKey;
}
public String getPublicKey() {
return publicKey;
}
public void setPublicKey(String publicKey) {
this.publicKey = publicKey;
}
public void generateRSAKeys() throws Exception {
// 生成秘钥对,并用Base64编码转换成字符串形式存储
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(1024);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
this.privateKey = Base64.getEncoder().encodeToString(keyPair.getPrivate().getEncoded());
this.publicKey = Base64.getEncoder().encodeToString(keyPair.getPublic().getEncoded());
}
}
```
接下来,我们建立一个Controller类,该类用于接收管理员输入的用户名和密码,并调用Model中的方法进行RSA加密,最后将加密后的密文和公钥返回给View。Controller类的代码实现如下:
```
public class AdminController {
public AdminModel authenticate(String userName, String password) throws Exception {
AdminModel model = new AdminModel();
// 设置用户名和密码
model.setUserName(userName);
model.setPassword(password);
// 生成RSA秘钥对
model.generateRSAKeys();
// 使用公钥进行RSA加密
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey publicKey = keyFactory.generatePublic(new X509EncodedKeySpec(Base64.getDecoder().decode(model.getPublicKey())));
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
byte[] encryptedPassword = cipher.doFinal(password.getBytes(StandardCharsets.UTF_8));
model.setPassword(Base64.getEncoder().encodeToString(encryptedPassword));
return model;
}
}
```
最后,我们建立一个View类,该类用于显示输入用户名和密码的页面,并将结果显示给管理员。View类的代码实现如下:
```
public class AdminView {
public void displayResult(String encryptedPassword, String publicKey) {
// 将加密后的密文和公钥显示给管理员
System.out.println("Encrypted password: " + encryptedPassword);
System.out.println("Public key: " + publicKey);
}
}
```
整合以上三个类,我们在Javaweb项目中可以实现后端管理员RSA加密登录。其具体代码流程如下:
```
public class AdminServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 从请求中获取用户名和密码
String userName = request.getParameter("userName");
String password = request.getParameter("password");
// 调用Controller中的authenticate方法进行RSA加密
AdminController controller = new AdminController();
AdminModel model = null;
try {
model = controller.authenticate(userName, password);
} catch (Exception e) {
e.printStackTrace();
}
// 将加密后的密文和公钥显示给管理员
AdminView view = new AdminView();
view.displayResult(model.getPassword(), model.getPublicKey());
}
}
```