加密存储密码

DrCOM_JLU_Qt.pro

@@ -29,6 +29,7 @@ DEFINES += QT_DEPRECATED_WARNINGS
 CONFIG += c++11
 
 SOURCES += \
+    encrypt/EncryptData.cpp \
     main.cpp \
     mainwindow.cpp \
     dogcomcontroller.cpp \
@@ -40,6 +41,7 @@ SOURCES += \
     DogcomSocket.cpp
 
 HEADERS += \
+    encrypt/EncryptData.h \
     mainwindow.h \
     dogcomcontroller.h \
     constants.h \
@@ -68,6 +70,7 @@ DEFINES += QAPPLICATION_CLASS=QApplication
 VERSION = 1.0.0.6
 
 win32:LIBS += -lwsock32
+win32:LIBS += -lcrypt32
 # 更新日志：
 # v 0.0.0.0 实现基本功能
 # v 1.0.0.1 修复适配高DPI时只窗口大小适配但字号不适配的bug

constants.h

@@ -56,7 +56,7 @@ enum {
 const int PORT_BIND = 61440;
 const int PORT_DEST = 61440;
 const QString SERVER_IP = "10.100.61.3";
-const QString SETTINGS_FILE_NAME = "DrCOM_JLU_Qt.ini";
+const QString SETTINGS_FILE_NAME = "DrCOM_JLU_Qt";
 const QString
 ID_ACCOUNT = "account",
 ID_PASSWORD = "password",

encrypt/EncryptData.cpp

@@ -0,0 +1,79 @@
+#include "EncryptData.h"
+
+#ifdef _WIN32
+
+// 加密
+QByteArray EncryptWithWindowsDPAPI(const QByteArray& data)
+{
+    DATA_BLOB inBlob;
+    inBlob.pbData = (BYTE*)data.data();
+    inBlob.cbData = data.size();
+
+    DATA_BLOB outBlob;
+    if (CryptProtectData(&inBlob, L"Password", nullptr, nullptr, nullptr, 0, &outBlob)) {
+        QByteArray result((char*)outBlob.pbData, outBlob.cbData);
+        LocalFree(outBlob.pbData);
+        return result;
+    } else {
+        return {};
+    }
+}
+
+// 解密
+QByteArray DecryptWithWindowsDPAPI(const QByteArray& encryptedData)
+{
+    DATA_BLOB inBlob;
+    inBlob.pbData = (BYTE*)encryptedData.data();
+    inBlob.cbData = encryptedData.size();
+
+    DATA_BLOB outBlob;
+    if (CryptUnprotectData(&inBlob, nullptr, nullptr, nullptr, nullptr, 0, &outBlob)) {
+        QByteArray result((char*)outBlob.pbData, outBlob.cbData);
+        LocalFree(outBlob.pbData);
+        return result;
+    } else {
+        return {};
+    }
+}
+
+#else
+QByteArray SimpleEncrypt(const QByteArray& data, const QByteArray& key = "SimpleKey")
+{
+    QByteArray ba = data;
+    for (int i = 0; i < ba.size(); ++i){
+        ba[i] = ba[i] ^ key[i % key.size()];
+    }
+    return ba;
+}
+
+QByteArray SimpleDecrypt(const QByteArray& data, const QByteArray& key = "SimpleKey")
+{
+    QByteArray ba = data;
+    for (int i = 0; i < ba.size(); ++i){
+        ba[i] = ba[i] ^ key[i % key.size()];
+    }
+    return ba;
+}
+#endif
+
+// 包装为字符串操作
+QString EncryptString(const QString& password)
+{
+    #ifdef _WIN32
+    QByteArray encrypted = EncryptWithWindowsDPAPI(password.toUtf8());
+    #else
+    QByteArray encrypted = SimpleEncrypt(password.toUtf8());
+    #endif
+    return encrypted.toBase64();
+}
+
+QString DecryptString(const QString& base64EncodedPassword)
+{
+    QByteArray decoded = QByteArray::fromBase64(base64EncodedPassword.toUtf8());
+    #ifdef _WIN32
+    QByteArray decrypted = DecryptWithWindowsDPAPI(decoded);
+    #else
+    QByteArray decrypted = SimpleDecrypt(decoded);
+    #endif
+    return QString::fromUtf8(decrypted);
+}

encrypt/EncryptData.h

@@ -0,0 +1,23 @@
+#ifndef ENCRYPTDATA_H
+#define ENCRYPTDATA_H
+
+#include <QString>
+#include <QByteArray>
+
+#ifdef _WIN32
+#include <windows.h>
+#include <wincrypt.h>
+#endif
+
+#ifdef _WIN32
+QByteArray EncryptWithWindowsDPAPI(const QByteArray& data);
+QByteArray DecryptWithWindowsDPAPI(const QByteArray& encryptedData);
+#else
+QByteArray SimpleEncrypt(const QByteArray& data, const QByteArray& key = "SimpleKey");
+QByteArray SimpleDecrypt(const QByteArray& data, const QByteArray& key = "SimpleKey");
+#endif
+
+QString EncryptString(const QString& password);
+QString DecryptString(const QString& base64EncodedPassword);
+
+#endif // ENCRYPTDATA_H

mainwindow.cpp

@@ -17,6 +17,8 @@
 #include <QProcess>
 #include <QTimer>
 
+#include "encrypt/EncryptData.h"
+
 MainWindow::MainWindow(SingleApplication *parentApp, QWidget *parent) :
     QDialog(parent),
     ui(new Ui::MainWindow),
@@ -159,7 +161,7 @@ void MainWindow::RestartDrcom()
 void MainWindow::QuitDrcom()
 {
 	// 退出之前恢复重试计数
-    QSettings s(SETTINGS_FILE_NAME, QSettings::IniFormat);
+    QSettings s(SETTINGS_FILE_NAME);
     s.setValue(ID_RESTART_TIMES, 0);
 	qDebug() << "reset restartTimes";
 	qDebug() << "QuitDrcom";
@@ -201,14 +203,12 @@ void MainWindow::IconActivated(QSystemTrayIcon::ActivationReason reason)
 void MainWindow::LoadSettings() {
 	QSettings s(SETTINGS_FILE_NAME);
 	account = s.value(ID_ACCOUNT, "").toString();
-	password = s.value(ID_PASSWORD, "").toString();
 	mac_addr = s.value(ID_MAC, "").toString();
     bRemember = s.value(ID_REMEMBER, false).toBool();
     bAutoLogin = s.value(ID_AUTO_LOGIN, false).toBool();
     bHideWindow = s.value(ID_HIDE_WINDOW, false).toBool();
     bNotShowWelcome = s.value(ID_NOT_SHOW_WELCOME, false).toBool();
 	ui->lineEditAccount->setText(account);
-	ui->lineEditPass->setText(password);
 	SetMAC(mac_addr);
     if (bRemember)
 		ui->checkBoxRemember->setCheckState(Qt::CheckState::Checked);
@@ -226,15 +226,23 @@ void MainWindow::LoadSettings() {
         ui->checkBoxNotShowWelcome->setCheckState(Qt::CheckState::Checked);
     else
         ui->checkBoxNotShowWelcome->setCheckState(Qt::CheckState::Unchecked);
+
+    // 密码加密处理
+    QString encryptedPasswd = s.value(ID_PASSWORD, "").toString();
+    password = DecryptString(encryptedPasswd);
+    ui->lineEditPass->setText(password);
 }
 
 void MainWindow::SaveSettings() {
 	QSettings s(SETTINGS_FILE_NAME);
 	s.setValue(ID_ACCOUNT, account);
-	s.setValue(ID_PASSWORD, password);
 	s.setValue(ID_MAC, mac_addr);
     s.setValue(ID_REMEMBER, bRemember);
     s.setValue(ID_AUTO_LOGIN, bAutoLogin);
+
+    // 密码加密处理
+    QString enctyptedPasswd = EncryptString(password);
+    s.setValue(ID_PASSWORD, enctyptedPasswd);
 }
 
 void MainWindow::SetMAC(const QString &m)