Optimize with multithread

module/mifare.cpp

@@ -46,3 +46,15 @@ void Mifare::setInputType(InputType tp)
 {
     inputType=tp;
 }
+
+bool Mifare::isKeyValid(const QString key)
+{
+    if(key.length() != 12)
+        return false;
+    for(int i = 0; i < 12; i++)
+    {
+        if(!((key[i] >= '0' && key[i] <= '9') || (key[i] >= 'A' && key[i] <= 'F')))
+            return false;
+    }
+    return true;
+}

module/mifare.h

@@ -3,6 +3,7 @@
 
 #include "common/util.h"
 #include <QObject>
+#include <QString>
 
 class Mifare : public QObject
 {
@@ -25,6 +26,7 @@ public:
 
     void setProcessingState(ProcessingState st);
     void setInputType(InputType tp);
+    bool isKeyValid(const QString key);
 public slots:
     void processData(const QString str);
     void processKey(const QString str);