2020-1-capstone-design2 / 2013104053

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김동준
042085fc 1 parent 3b3aebdf

Implementation completed

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Showing 7 changed files with 504 additions and 67 deletions
......@@ -48,6 +48,11 @@ class DecryptWindow extends Frame {
String folderDir = ".\\" + userId + "\\Encrypted";
final File dirToLock = new File(folderDir);
if(!dirToLock.exists())
{
JOptionPane.showMessageDialog(null,"No files have been encrypted!");
return;
}
JFileChooser jfc = new JFileChooser(dirToLock);
jfc.setFileView(new FileView() {
@Override
......@@ -62,7 +67,7 @@ class DecryptWindow extends Frame {
lpwd = new Label("Enter password: ",Label.RIGHT);
lmod = new Label("열람 목적: ",Label.RIGHT);
lmod = new Label("Enter purpose: ",Label.RIGHT);
//약 10개의 글자를 입력할 수 있는 TextField 생성.
......@@ -71,7 +76,7 @@ class DecryptWindow extends Frame {
tfMod = new TextField(10);
//입력한 값 대신 '*'이 보이게 한다.
tfPwd.setEchoChar('*');
ok = new Button("OK");
......@@ -102,7 +107,9 @@ class DecryptWindow extends Frame {
add(ok);
setSize(450,65);
setSize(450,100);
this.setLocationRelativeTo(null);
//화면이 보이게 한다.
......@@ -126,6 +133,12 @@ class DecryptWindow extends Frame {
dispose();
if(tfMod.getText().length() < 1)
{
JOptionPane.showMessageDialog(null,"Purpose cannot be null.");
return;
}
String passwd = userId + ' ' + tfPwd.getText();
char[] password = passwd.toCharArray();
String passwd2 = userId + ' ' + userPW;
......@@ -151,7 +164,11 @@ class DecryptWindow extends Frame {
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
generalSecurityException.printStackTrace();
String tempdir = ".\\" + userId + "\\logs\\" + fileName + ".txt";
File temp = new File(tempdir);
temp.delete();
JOptionPane.showMessageDialog(null,"Password is invalid!");
return;
}
dir = ".\\" + userId + "\\logs\\" + fileName + ".txt";
......@@ -175,7 +192,7 @@ class DecryptWindow extends Frame {
Date time = new Date();
String time1 = format1.format(time);
String toWrite = "열람\t" + time1 + '\t' + modeIn + '\n';
String toWrite = "OPN\t" + time1 + '\t' + modeIn + '\n';
byte[] b = toWrite.getBytes();
try {
fos.write(b);
......
......@@ -6,8 +6,12 @@ import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.text.SimpleDateFormat;
import java.util.Date;
class DeleteEncypted extends Frame {
......@@ -33,6 +37,11 @@ class DeleteEncypted extends Frame {
String folderDir = ".\\" + userId + "\\Encrypted";
final File dirToLock = new File(folderDir);
if(!dirToLock.exists())
{
JOptionPane.showMessageDialog(null,"No files have been encrypted!");
return;
}
JFileChooser jfc = new JFileChooser(dirToLock);
jfc.setFileView(new FileView() {
@Override
......@@ -48,7 +57,61 @@ class DeleteEncypted extends Frame {
if(file.exists())
{
file.deleteOnExit();
String fileName = file.getName();
String passwd2 = userId + ' ' + userPW;
char[] password2 = passwd2.toCharArray();
String dir = ".\\" + userId + "\\logs\\" + fileName + ".txt";
String dir2 = ".\\" + userId + "\\logs\\" + fileName + ".log";
try {
Cryptor.decrypt(dir2, dir, password2);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
generalSecurityException.printStackTrace();
}
FileOutputStream fos = null;
try {
fos = new FileOutputStream(dir,true);
} catch (FileNotFoundException fileNotFoundException) {
fileNotFoundException.printStackTrace();
}
SimpleDateFormat format1 = new SimpleDateFormat( "yyyy-MM-dd HH:mm");
Date time = new Date();
String time1 = format1.format(time);
String toWrite = "DEL\t" + time1 + '\t' + "Finished using File" + '\n';
byte[] b = toWrite.getBytes();
try {
fos.write(b);
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
fos.flush();
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
fos.close();
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
Cryptor.encrypt(dir, dir2, password2);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
generalSecurityException.printStackTrace();
}
File temp = new File(dir);
temp.delete();
file.delete();
}
}
......
......@@ -51,7 +51,7 @@ class EncryptWindow extends Frame {
lpwd = new Label("Enter password: ",Label.RIGHT);
lmod = new Label("사용 목적: ",Label.RIGHT);
lmod = new Label("Enter purpose: ",Label.RIGHT);
//약 10개의 글자를 입력할 수 있는 TextField 생성.
......@@ -60,7 +60,7 @@ class EncryptWindow extends Frame {
tfMod = new TextField(10);
//입력한 값 대신 '*'이 보이게 한다.
tfPwd.setEchoChar('*');
ok = new Button("OK");
......@@ -90,7 +90,9 @@ class EncryptWindow extends Frame {
add(ok);
setSize(450,65);
setSize(450,100);
this.setLocationRelativeTo(null);
//화면이 보이게 한다.
......@@ -112,6 +114,12 @@ class EncryptWindow extends Frame {
dispose();
if(tfPwd.getText().length() < 1 || tfMod.getText().length() < 1)
{
JOptionPane.showMessageDialog(null,"Password and purpose cannot be null.");
return;
}
String passwd = userId + ' ' + tfPwd.getText();
char[] password = passwd.toCharArray();
String passwd2 = userId + ' ' + userPW;
......@@ -166,7 +174,7 @@ class EncryptWindow extends Frame {
Date time = new Date();
String time1 = format1.format(time);
String toWrite = "등록\t" + time1 + '\t' + modeIn + '\n';
String toWrite = "REG\t" + time1 + '\t' + modeIn + '\n';
byte[] b = toWrite.getBytes();
try {
fos.write(b);
......
......@@ -37,6 +37,11 @@ class LogWindow extends Frame {
String folderDir = ".\\" + userId + "\\logs";
final File dirToLock = new File(folderDir);
if(!dirToLock.exists())
{
JOptionPane.showMessageDialog(null,"No files have been encrypted!");
return;
}
JFileChooser jfc = new JFileChooser(dirToLock);
jfc.setFileView(new FileView() {
@Override
......@@ -83,7 +88,7 @@ class LogWindow extends Frame {
} catch (InterruptedException interruptedException) {
interruptedException.printStackTrace();
}
file.deleteOnExit();
file.delete();
}
public static void main(String args[]){
......
......@@ -70,7 +70,7 @@ class MainMenu extends Frame {
//LayoutManager를 FlowLayout으로
setLayout(new FlowLayout());
setLayout(new GridLayout(4,1));
//생성한 component들을 Frame에 포함시킨다.
......@@ -82,7 +82,9 @@ class MainMenu extends Frame {
add(bDelete);
setSize(450,200);
setSize(450,400);
this.setLocationRelativeTo(null);
//화면이 보이게 한다.
......@@ -102,60 +104,6 @@ class MainMenu extends Frame {
if (file.isDirectory()) {
deleteDirectory(file, userId, userPW);
} else {
String fileName = file.getName();
String passwd2 = userId + ' ' + userPW;
char[] password2 = passwd2.toCharArray();
String dir = ".\\" + userId + "\\logs\\" + fileName + ".txt";
String dir2 = ".\\" + userId + "\\logs\\" + fileName + ".log";
try {
Cryptor.decrypt(dir2, dir, password2);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
generalSecurityException.printStackTrace();
}
FileOutputStream fos = null;
try {
fos = new FileOutputStream(dir,true);
} catch (FileNotFoundException fileNotFoundException) {
fileNotFoundException.printStackTrace();
}
SimpleDateFormat format1 = new SimpleDateFormat( "yyyy-MM-dd HH:mm");
Date time = new Date();
String time1 = format1.format(time);
String toWrite = "삭제\t" + time1 + '\t' + "사용 완료" + '\n';
byte[] b = toWrite.getBytes();
try {
fos.write(b);
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
fos.flush();
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
fos.close();
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
Cryptor.encrypt(dir, dir2, password2);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
generalSecurityException.printStackTrace();
}
File temp = new File(dir);
temp.delete();
file.delete();
}
}
......
package cryptor;
import javax.annotation.processing.Filer;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.*;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
class SignIn extends Frame {
Label lid;
Label lpwd;
TextField tfId;
TextField tfPwd;
Button ok;
Button su;
SignIn(String title){
//Frame(String title)을 호출한다.
super(title);
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
dispose();
System.exit(0);
}
});
//Label의 text정렬을 오른쪽으로
lid = new Label("ID : ",Label.RIGHT);
lpwd = new Label("Password : ",Label.RIGHT);
//약 10개의 글자를 입력할 수 있는 TextField 생성.
tfId = new TextField(10);
tfPwd = new TextField(10);
//입력한 값 대신 '*'이 보이게 한다.
tfPwd.setEchoChar('*');
ok = new Button("OK");
su = new Button("Sign Up");
//OK버튼과 TextField에 이벤트처리를 위한 Listener를 추가해준다.
tfId.addActionListener(new EventHandler());
tfPwd.addActionListener(new EventHandler());
ok.addActionListener(new EventHandler());
su.addActionListener(e -> {
SignUp f = new SignUp("Sign Up");
});
//LayoutManager를 FlowLayout으로
setLayout(new FlowLayout());
//생성한 component들을 Frame에 포함시킨다.
add(lid);
add(tfId);
add(lpwd);
add(tfPwd);
add(ok);
add(su);
setSize(450,80);
this.setLocationRelativeTo(null);
//화면이 보이게 한다.
setVisible(true);
}
public static void main(String args[]){
SignIn f = new SignIn("Sign In");
}
class EventHandler implements ActionListener{
public void actionPerformed(ActionEvent e){
String passwd = tfId.getText() + ' ' + tfPwd.getText();
char[] password = passwd.toCharArray();
String dir = ".\\Users\\" + tfId.getText() + ".txt";
String dir2 = ".\\Users\\" + tfId.getText() + ".info";
File f = new File(dir2);
if(f.exists())
{
try {
Cryptor.decrypt(dir2,dir,password);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
JOptionPane.showMessageDialog(null,"Password is invalid!");
return;
}
dispose();
File file = new File(dir);
FileReader fr = null;
try {
fr = new FileReader(file);
} catch (FileNotFoundException fileNotFoundException) {
fileNotFoundException.printStackTrace();
}
BufferedReader bufReader = new BufferedReader(fr);
String line = "";
try {
line = bufReader.readLine();
} catch (IOException ioException) {
ioException.printStackTrace();
}
String[] strs = line.split(String.valueOf('\t'));
try {
fr.close();
} catch (IOException ioException) {
ioException.printStackTrace();
}
file.delete();
try {
if(strs[1].equals(byteToHexString(sha256(tfPwd.getText()))))
{
MainMenu mm = new MainMenu("Main Menu", strs[0], tfPwd.getText());
}
else
{
JOptionPane.showMessageDialog(null,"Password is invalid!");
}
} catch (NoSuchAlgorithmException noSuchAlgorithmException) {
noSuchAlgorithmException.printStackTrace();
}
}
else
{
JOptionPane.showMessageDialog(null,tfId.getText() + " has never signed Up!");
}
}
public byte[] sha256(String msg) throws NoSuchAlgorithmException {
MessageDigest md = MessageDigest.getInstance("SHA-256");
md.update(msg.getBytes());
return md.digest();
}
public String byteToHexString(byte[] data) {
StringBuilder sb = new StringBuilder();
for (byte b : data) {
sb.append(String.format("%02x", b));
}
return sb.toString();
}
}
}
\ No newline at end of file
package cryptor;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
class SignUp extends Frame {
Label lid;
Label lpwd;
TextField tfId;
TextField tfPwd;
Button ok;
SignUp(String title){
//Frame(String title)을 호출한다.
super(title);
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
dispose();
}
});
//Label의 text정렬을 오른쪽으로
lid = new Label("ID : ",Label.RIGHT);
lpwd = new Label("Password : ",Label.RIGHT);
//약 10개의 글자를 입력할 수 있는 TextField 생성.
tfId = new TextField(10);
tfPwd = new TextField(10);
//입력한 값 대신 '*'이 보이게 한다.
tfPwd.setEchoChar('*');
ok = new Button("OK");
//OK버튼과 TextField에 이벤트처리를 위한 Listener를 추가해준다.
tfId.addActionListener(new EventHandler());
tfPwd.addActionListener(new EventHandler());
ok.addActionListener(new EventHandler());
//LayoutManager를 FlowLayout으로
setLayout(new FlowLayout());
//생성한 component들을 Frame에 포함시킨다.
add(lid);
add(tfId);
add(lpwd);
add(tfPwd);
add(ok);
setSize(450,80);
this.setLocationRelativeTo(null);
//화면이 보이게 한다.
setVisible(true);
}
public static void main(String args[]){
SignUp f = new SignUp("Sign Up");
}
class EventHandler implements ActionListener{
public void actionPerformed(ActionEvent e){
if(tfId.getText().length() < 1 || tfPwd.getText().length() < 1)
{
JOptionPane.showMessageDialog(null,"ID and password cannot be null.");
return;
}
String passwd = tfId.getText() + ' ' + tfPwd.getText();
char[] password = passwd.toCharArray();
String dir = ".\\Users\\" + tfId.getText() + ".txt";
String dir2 = ".\\Users\\" + tfId.getText() + ".info";
File f = new File(dir2);
if(!f.exists())
{
dispose();
File file = new File(dir);
file.getParentFile().mkdir();
try {
file.createNewFile();
} catch (IOException ioException) {
ioException.printStackTrace();
}
FileOutputStream fos = null;
try {
fos = new FileOutputStream(file);
} catch (FileNotFoundException fileNotFoundException) {
fileNotFoundException.printStackTrace();
}
String toWrite = null;
try {
toWrite = tfId.getText() + '\t' + byteToHexString(sha256(tfPwd.getText()));
} catch (NoSuchAlgorithmException noSuchAlgorithmException) {
noSuchAlgorithmException.printStackTrace();
}
byte[] b = toWrite.getBytes();
try {
fos.write(b);
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
fos.flush();
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
fos.close();
} catch (IOException ioException) {
ioException.printStackTrace();
}
try {
Cryptor.encrypt(dir, dir2, password);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (GeneralSecurityException generalSecurityException) {
generalSecurityException.printStackTrace();
}
file.delete();
}
else
{
JOptionPane.showMessageDialog(null,tfId.getText() + " already exists!");
}
}
public byte[] sha256(String msg) throws NoSuchAlgorithmException {
MessageDigest md = MessageDigest.getInstance("SHA-256");
md.update(msg.getBytes());
return md.digest();
}
public String byteToHexString(byte[] data) {
StringBuilder sb = new StringBuilder();
for (byte b : data) {
sb.append(String.format("%02x", b));
}
return sb.toString();
}
}
}
\ No newline at end of file