public and private key op

Author: zahidayturan

rsa-backend/src/main/java/com/example/rsa/controller/UserController.java

@@ -1,19 +1,26 @@
 package com.example.rsa.controller;
 
 import com.example.rsa.model.User;
+import com.example.rsa.service.RsaEncryptionService;
 import com.example.rsa.service.UserService;
 import io.swagger.v3.oas.annotations.Operation;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.math.BigInteger;
+
 @RestController
 @RequestMapping("/user")
 public class UserController {
 
  @Autowired
  private UserService userService;
 
+ @Autowired
+ private RsaEncryptionService rsaEncryptionService;
+
  @PostMapping
  public ResponseEntity<String> addUser(@RequestBody User user) {
  try {
@@ -50,5 +57,22 @@ public void cleanUsers() {
  userService.cleanAllUsers();
  }
 
+ @Operation(summary = "Get user key")
+ @GetMapping("/key/{type}/{userId}")
+ public ResponseEntity<String> getUserKey(@PathVariable String type, @PathVariable Integer userId) {
+ BigInteger keyValue;
+ if (type.equals("eKey")) {
+ keyValue = rsaEncryptionService.getE();
+ userService.updateUserKey(userId, type, keyValue);
+ } else if (type.equals("dKey")) {
+ keyValue = rsaEncryptionService.getD();
+ userService.updateUserKey(userId, type, keyValue);
+ } else {
+ return ResponseEntity.badRequest().body("Invalid key type");
+ }
+ return ResponseEntity.ok("Hazır");
+ }
+
+
 }
 

rsa-backend/src/main/java/com/example/rsa/service/RSAEncryptionService.java

@@ -9,22 +9,23 @@
 @Data
 @Service
 public class RsaEncryptionService {
- private final BigInteger n;
- private final BigInteger d;
+ private BigInteger n;
+ private BigInteger d;
  private BigInteger e;
 
  public RsaEncryptionService() {
+ initializeKeys();
+ }
+
+ private void initializeKeys() {
  SecureRandom random = new SecureRandom();
 
  int bitLength = 2048;
  BigInteger p = BigInteger.probablePrime(bitLength, random);
  BigInteger q = BigInteger.probablePrime(bitLength, random);
- System.out.println(p);
- System.out.println(q);
 
- n = p.multiply(q); // n = p * q
- System.out.println(n);
- BigInteger phi = (p.subtract(BigInteger.ONE)).multiply(q.subtract(BigInteger.ONE)); // phi(n) = (p-1)*(q-1)
+ n = p.multiply(q);
+ BigInteger phi = (p.subtract(BigInteger.ONE)).multiply(q.subtract(BigInteger.ONE));
 
  // Public Key
  e = BigInteger.probablePrime(bitLength / 2, random);
@@ -33,10 +34,10 @@ public RsaEncryptionService() {
  }
 
  // Private Key
- d = e.modInverse(phi); // d = e^(-1) mod phi
+ d = e.modInverse(phi);
 
- System.out.println(e);
- System.out.println(d);
+ System.out.println("Public Key :"+e);
+ System.out.println("Private Key :"+d);
  }
 
  public BigInteger encrypt(BigInteger message) {

rsa-backend/src/main/java/com/example/rsa/service/UserService.java

@@ -3,6 +3,7 @@
 import com.example.rsa.model.User;
 import org.springframework.stereotype.Service;
 
+import java.math.BigInteger;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -57,5 +58,21 @@ public void updateUser(Integer id, String field ,boolean newValue) {
  System.out.println(getAllUsers());
  }
 
+ public void updateUserKey(Integer id, String type , BigInteger key) {
+ System.out.println(id);
+ System.out.println(type);
+ System.out.println(key);
+ for (User user : users) {
+ if (user.getId().equals(id)) {
+ switch (type) {
+ case "eKey" -> user.setEKey(key);
+ case "dKey" -> user.setDKey(key);
+ }
+ break;
+ }
+ }
+ System.out.println(getAllUsers());
+ }
+
 }
 

rsa-frontend/src/routes/components/ScenarioArea.js

@@ -26,8 +26,7 @@ const UserContainer = ({ user, handleUserToggle }) => {
  />
  <div>
  <p>Açık Anahtar</p>
- <p className={"small-text"}>{user.publicKey ? user.eKey : "Kapalı"}</p>
- <p></p>
+ <p className={"x-small-text font-bold"}>{user.publicKey ? user.eKey : "Kapalı"}</p>
  </div>
  </div>
 
@@ -39,8 +38,7 @@ const UserContainer = ({ user, handleUserToggle }) => {
  />
  <div>
  <p>Kapalı Anahtar</p>
- <p className={"small-text"}>{user.privateKey ? user.dKey : "Kapalı"}</p>
- <p></p>
+ <p className={"x-small-text font-bold"}>{user.privateKey ? user.dKey : "Kapalı"}</p>
  </div>
  </div>
 
@@ -53,9 +51,14 @@ const UserContainer = ({ user, handleUserToggle }) => {
  />
  <div>
  <p>Dosya Yükleme</p>
- <p className={"small-text"}>{user.fileUpload ? user.fileUpload : "Kapalı"}</p>
- <p></p>
+ <p className={"x-small-text font-bold"}>
+ {user.fileUpload ? "Açık" : "Kapalı"}
+ </p>
+ <div className={"user-operation-button"} style={{ backgroundColor: user.fileUpload && "rgb(0,176,176)",cursor: user.fileUpload && "pointer" }}>
+ Dosya Yükle
+ </div>
  </div>
+
  </div>
  <div className={"custom-row"} style={{gap:0}}>
  <Switch
@@ -65,8 +68,10 @@ const UserContainer = ({ user, handleUserToggle }) => {
  />
  <div>
  <p>Dosya Okuma</p>
- <p className={"small-text"}>{user.readFiles ? user.readFiles : "Kapalı"}</p>
- <p></p>
+ <p className={"x-small-text font-bold"}>{user.readFiles ? "Açık" : "Kapalı"}</p>
+ <div className={"user-operation-button"} style={{ backgroundColor: user.readFiles && "rgb(16,64,59)",cursor: user.readFiles && "pointer" }}>
+ Dosya Görüntüle
+ </div>
  </div>
  </div>
  </div>
@@ -119,10 +124,26 @@ const ScenarioArea = () => {
  }
  };
 
- const handleUserToggle = (userId, field,newValue) => {
+ const updateEKeys = (id, newKey) => {
+ setUsers(prevUsers =>
+ prevUsers.map(user =>
+ user.id === id ? { ...user, eKey: newKey} : user
+ )
+ );
+ };
+
+ const updateDKeys = (id, newKey) => {
+ setUsers(prevUsers =>
+ prevUsers.map(user =>
+ user.id === id ? { ...user, dKey: newKey} : user
+ )
+ );
+ };
+
+ const handleUserToggle = (userId, field, newValue) => {
  setUsers(users.map(user =>
  user.id === userId
- ? { ...user, [field]: !user[field] }
+ ? {...user, [field]: !user[field]}
  : user
  ));
 
@@ -133,6 +154,28 @@ const ScenarioArea = () => {
  .catch(error => {
  console.error("Kullanıcı güncellenirken hata oluştu:", error);
  });
+
+ if (field === "publicKey") {
+ axios.get(`http://localhost:8080/user/key/eKey/${userId}`)
+ .then(response => {
+ updateEKeys(userId, response.data);
+ console.log("Kullanıcı public key alındı:", response);
+ })
+ .catch(error => {
+ console.error("Kullanıcı public key alınamadı:", error);
+ });
+ }
+ if (field === "privateKey") {
+ axios.get(`http://localhost:8080/user/key/dKey/${userId}`)
+ .then(response => {
+ updateDKeys(userId, response.data);
+ console.log("Kullanıcı private key alındı:", response);
+ })
+ .catch(error => {
+ console.error("Kullanıcı private key alınamadı:", error);
+ });
+ }
+
  };
 
  return (

rsa-frontend/src/routes/css/index.css

@@ -257,3 +257,13 @@ span{
  color: var(--black-color-1);
 }
 
+.user-operation-button{
+ margin-top: 4px;
+ padding: 8px 12px;
+ border-radius: 50px;
+ background-color: var(--grey-color-1);
+ color: var(--primary-color-1);
+ text-align: center;
+ font-size: 13px;
+}
+