Added classes for Encryption and Decryption

Encryption.h

@@ -0,0 +1,23 @@
+#ifndef ENCRYPTION_H
+#define ENCRYPTION_H
+
+#include <fstream>
+#include <string>
+
+class Encryption
+{
+public:
+
+	Encryption();
+
+	void setMessage(const std::string);
+	void encryptMessage();
+
+	std::string getMessage() const;	
+
+private:
+	std::fstream writeToFile;
+	std::string message;
+};
+
+#endif