diff --git a/key.txt b/key.txt
new file mode 100644
index 0000000..f01fd5d
--- /dev/null
+++ b/key.txt
@@ -0,0 +1 @@
+A0 7C 3D 99 FA 00 02 46 97 33 73 50 31 7C D3 DC
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index 3555284..325dfde 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,12 +1,15 @@
 #include "aes.hpp"
 
 #include <iostream>
+#include <fstream>
 #include <string>
 
 #include "profiler.hpp"
 
 using namespace std;
 
+uint8_t key[16];
+
 string prompt(char separator = '>')
 {
 	PROFILER_RECORD;
@@ -25,13 +28,12 @@ void print_help()
 {
 	PROFILER_RECORD;
 	// TODO Verify whether there are more/less commands
-	cout << "The following commands are available: help, login, exit" << endl;
+	cout << "The following commands are available: help, login, register, exit" << endl;
 }
 
 void login()
 {
 	PROFILER_RECORD;
-	uint8_t key[16] = {0xA0,0x7C,0x3D,0x99,0xFA,0x00,0x02,0x46,0x97,0x33,0x73,0x50,0x31,0x7C,0xD3,0xDC}; // TODO Load me from a file
 	cout << "Username";
 	string username = prompt(':');
 	cout << "Password";
@@ -50,6 +52,12 @@ void login()
 	// TODO Validate encrypted password
 }
 
+void register_user()
+{
+	PROFILER_RECORD;
+	cout << "Registration is currently unavailable" << endl;
+}
+
 bool execute_command(const string &input)
 {
 	PROFILER_RECORD;
@@ -62,19 +70,41 @@ bool execute_command(const string &input)
 	{
 		login();
 	}
+	else if (input == "register")
+	{
+		register_user();
+	}
 	else if (input == "help")
 	{
 		print_help();
 	}
-	else if (!profiler.command_line(input))
+	else if (input == "profiler_print")
 	{
-		cout << "Invalid command '" << input << "'" << endl;
+		profiler.print();
 	}
+	else if (input == "profiler_reset")
+	{
+		profiler.reset();
+	}
+	cout << "Invalid command '" << input << "'" << endl;
 	return true;
 }
 
+void load_key()
+{
+	PROFILER_RECORD;
+	ifstream file("key.txt");
+	string line;
+	getline(file, line);
+	for (int i = 0;i < 16;i++)
+	{
+		key[i] = stoi(line.substr(3 * i, 2), 0, 16);
+	}
+}
+
 int main(int argc, char **argv) {
 	PROFILER_RECORD;
+	load_key();
 	cout << "Welcome to the Secutech customer portal." << endl;
 	cout << "How can we help you today? (type 'help' for help)" << endl;
 	string input;
diff --git a/profiler.cpp b/profiler.cpp
index 93a9d22..8a077c1 100644
--- a/profiler.cpp
+++ b/profiler.cpp
@@ -1,11 +1,9 @@
 #include "profiler.hpp"
 
 #include <iostream>
-#include <sstream>
 #include <iomanip>
 
 using namespace std;
-using std::string;
 
 Profiler profiler;
 
@@ -19,22 +17,12 @@ void Profiler::reset()
 	calls.clear();
 }
 
-bool Profiler::command_line(const string &input)
+void Profiler::print() const
 {
-	if (input == "profiler_print")
+	for (auto it = this->calls.begin();it != this->calls.end();it++)
 	{
-		for (auto it = this->calls.begin();it != this->calls.end();it++)
-		{
-			ostringstream out;
-			out << left << setw(25) << it->first << right << setw(5) << it->second;
-			cout << out.str() << endl;
-		}
-		return true;
+		ostringstream out;
+		out << left << setw(25) << it->first << right << setw(5) << it->second;
+		cout << out.str() << endl;
 	}
-	if (input == "profiler_reset")
-	{
-		this->reset();
-		return true;
-	}
-	return false;
 }
diff --git a/profiler.hpp b/profiler.hpp
index 9f3b8bb..77d50de 100644
--- a/profiler.hpp
+++ b/profiler.hpp
@@ -10,7 +10,7 @@ public:
 	std::map<std::string, uint32_t> calls;
 	void record_function_call(const char *function_name);
 	void reset();
-	bool command_line(const std::string &input);
+	void print() const;
 };
 
 #define PROFILER_RECORD profiler.record_function_call(__func__)