To implement the autonomous vehicle security in ns3 requiring by simulating interaction amongst vehicles and integrating their security mechanism to defend the threats. This guide will walk you through setting up a basic network topology in ns3 and implementing security features such as encryption, authentication, and intrusion detection.
Step-by-Step Implementation
Step 1: Set Up the ns3 Environment
Make sure that you have installed the ns3 on your computer.
Step 2: Define the Network Topology
Create a network topology that comprises nodes signifying self-sufficient vehicles and possibly an attacker.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/wifi-module.h”
#include “ns3/mobility-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
NS_LOG_COMPONENT_DEFINE (“AutonomousVehicleSecurityExample”);
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer vehicles;
vehicles.Create (3); // Autonomous vehicles
NodeContainer attacker;
attacker.Create (1); // Attacker
// Configure Wi-Fi
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
phy.SetChannel (channel.Create ());
WifiHelper wifi;
wifi.SetRemoteStationManager (“ns3::AarfWifiManager”);
WifiMacHelper mac;
Ssid ssid = Ssid (“Vehicle-SSID”);
mac.SetType (“ns3::StaWifiMac”, “Ssid”, SsidValue (ssid), “ActiveProbing”, BooleanValue (false));
NetDeviceContainer vehicleDevices;
vehicleDevices = wifi.Install (phy, mac, vehicles);
mac.SetType (“ns3::ApWifiMac”, “Ssid”, SsidValue (ssid));
NetDeviceContainer attackerDevice;
attackerDevice = wifi.Install (phy, mac, attacker);
// Install Internet stack
InternetStackHelper stack;
stack.Install (vehicles);
stack.Install (attacker);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer vehicleInterfaces = address.Assign (vehicleDevices);
Ipv4InterfaceContainer attackerInterface = address.Assign (attackerDevice);
// Set mobility model
MobilityHelper mobility;
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (vehicles);
mobility.Install (attacker);
// Create and configure applications…
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Step 3: Simulate Vehicle Communication
Simulate communication among the self-driven vehicles by build an applications.
Vehicle Application:
class VehicleApplication : public Application {
public:
VehicleApplication () : m_socket (0) {}
virtual ~VehicleApplication () {}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), UdpSocketFactory::GetTypeId ());
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 8080);
m_socket->Bind (local);
m_socket->SetRecvCallback (MakeCallback (&VehicleApplication::HandleRead, this));
Simulator::Schedule (Seconds (2.0), &VehicleApplication::SendData, this);
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void SendData () {
Ptr<Packet> packet = Create<Packet> ((uint8_t*)”vehicle-data”, 12);
m_socket->SendTo (packet, 0, InetSocketAddress (Ipv4Address (“10.1.1.2”), 8080)); // Send to another vehicle
Simulator::Schedule (Seconds (5.0), &VehicleApplication::SendData, this);
}
void HandleRead (Ptr<Socket> socket) {
Ptr<Packet> packet;
Address from;
while ((packet = socket->RecvFrom (from))) {
NS_LOG_INFO (“Vehicle received: ” << packet->GetSize ());
}
}
Ptr<Socket> m_socket;
};
Step 4: Implement Security Mechanisms
Now, we can simulate security mechanisms like encryption, authentication, and intrusion detection.
Authentication:
class AuthApplication : public Application {
public:
AuthApplication () : m_socket (0) {}
virtual ~AuthApplication () {}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), UdpSocketFactory::GetTypeId ());
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 7070);
m_socket->Bind (local);
m_socket->SetRecvCallback (MakeCallback (&AuthApplication::HandleRead, this));
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void HandleRead (Ptr<Socket> socket) {
Ptr<Packet> packet;
Address from;
while ((packet = socket->RecvFrom (from))) {
std::string data = std::string ((char*) packet->PeekData ());
if (Authenticate (data)) {
NS_LOG_INFO (“Authentication successful from ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
ForwardPacket (packet);
} else {
NS_LOG_WARN (“Authentication failed from ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
}
}
}
bool Authenticate (const std::string& data) {
// Simplified authentication logic
return data == “valid-credentials”;
}
void ForwardPacket (Ptr<Packet> packet) {
Ptr<Socket> socket = Socket::CreateSocket (GetNode (), UdpSocketFactory::GetTypeId ());
InetSocketAddress remote = InetSocketAddress (Ipv4Address (“10.1.1.2”), 8080); // Forward to another vehicle
socket->Connect (remote);
socket->Send (packet);
socket->Close ();
}
Ptr<Socket> m_socket;
};
Encryption:
class EncryptionApplication : public Application {
public:
EncryptionApplication () : m_socket (0) {}
virtual ~EncryptionApplication () {}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), UdpSocketFactory::GetTypeId ());
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 6060);
m_socket->Bind (local);
m_socket->SetRecvCallback (MakeCallback (&EncryptionApplication::HandleRead, this));
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void HandleRead (Ptr<Socket> socket) {
Ptr<Packet> packet;
Address from;
while ((packet = socket->RecvFrom (from))) {
std::string data = std::string ((char*) packet->PeekData ());
std::string decryptedData = Decrypt (data);
NS_LOG_INFO (“Received encrypted data: ” << data << “, decrypted data: ” << decryptedData);
}
}
std::string Decrypt (const std::string& data) {
// Simplified decryption logic
return data; // Assume data is already decrypted for simplicity
}
Ptr<Socket> m_socket;
};
Intrusion Detection System (IDS):
class IDSApplication : public Application {
public:
IDSApplication () : m_socket (0) {}
virtual ~IDSApplication () {}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), UdpSocketFactory::GetTypeId ());
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 5050);
m_socket->Bind (local);
m_socket->SetRecvCallback (MakeCallback (&IDSApplication::HandleRead, this));
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void HandleRead (Ptr<Socket> socket) {
Ptr<Packet> packet;
Address from;
while ((packet = socket->RecvFrom (from))) {
std::string data = std::string ((char*) packet->PeekData ());
if (DetectIntrusion (data)) {
NS_LOG_WARN (“Intrusion detected from ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
} else {
NS_LOG_INFO (“Normal traffic from ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
}
}
}
bool DetectIntrusion (const std::string& data) {
// Simplified intrusion detection logic
return data == “malicious-pattern”;
}
Ptr<Socket> m_socket;
};
Step 5: Deploy Applications
In the network, we have to instantiate and deploy the applications on the proper nodes:
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer vehicles;
vehicles.Create (3); // Autonomous vehicles
NodeContainer attacker;
attacker.Create (1); // Attacker
// Configure Wi-Fi
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
phy.SetChannel (channel.Create ());
WifiHelper wifi;
wifi.SetRemoteStationManager (“ns3::AarfWifiManager”);
WifiMacHelper mac;
Ssid ssid = Ssid (“Vehicle-SSID”);
mac.SetType (“ns3::StaWifiMac”, “Ssid”, SsidValue (ssid), “ActiveProbing”, BooleanValue (false));
NetDeviceContainer vehicleDevices;
vehicleDevices = wifi.Install (phy, mac, vehicles);
mac.SetType (“ns3::ApWifiMac”, “Ssid”, SsidValue (ssid));
NetDeviceContainer attackerDevice;
attackerDevice = wifi.Install (phy, mac, attacker);
// Install Internet stack
InternetStackHelper stack;
stack.Install (vehicles);
stack.Install (attacker);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer vehicleInterfaces = address.Assign (vehicleDevices);
Ipv4InterfaceContainer attackerInterface = address.Assign (attackerDevice);
// Set mobility model
MobilityHelper mobility;
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (vehicles);
mobility.Install (attacker);
// Create and configure the Vehicle application
for (uint32_t i = 0; i < vehicles.GetN (); ++i) {
Ptr<VehicleApplication> vehicleApp = CreateObject<VehicleApplication> ();
vehicles.Get (i)->AddApplication (vehicleApp);
vehicleApp->SetStartTime (Seconds (1.0));
vehicleApp->SetStopTime (Seconds (20.0));
}
// Create and configure the Auth application
Ptr<AuthApplication> authApp = CreateObject<AuthApplication> ();
vehicles.Get (1)->AddApplication (authApp);
authApp->SetStartTime (Seconds (1.0));
authApp->SetStopTime (Seconds (20.0));
// Create and configure the Encryption application
Ptr<EncryptionApplication> encryptionApp = CreateObject<EncryptionApplication> ();
vehicles.Get (1)->AddApplication (encryptionApp);
encryptionApp->SetStartTime (Seconds (1.0));
encryptionApp->SetStopTime (Seconds (20.0));
// Create and configure the IDS application
Ptr<IDSApplication> idsApp = CreateObject<IDSApplication> ();
vehicles.Get (1)->AddApplication (idsApp);
idsApp->SetStartTime (Seconds (1.0));
idsApp->SetStopTime (Seconds (20.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Step 6: Simulate an Attack
To examine the security mechanisms, simulate an attack from the attacker node:
class AttackerApplication : public Application {
public:
AttackerApplication () : m_socket (0) {}
virtual ~AttackerApplication () {}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), UdpSocketFactory::GetTypeId ());
m_peer = InetSocketAddress (Ipv4Address (“10.1.1.2”), 8080); // Target vehicle node
m_socket->Connect (m_peer);
Simulator::Schedule (Seconds (3.0), &AttackerApplication::SendMaliciousPacket, this);
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void SendMaliciousPacket () {
std::string maliciousData = “malicious-pattern”; // Simplified malicious pattern
Ptr<Packet> packet = Create<Packet> ((uint8_t*)maliciousData.c_str (), maliciousData.size ());
m_socket->Send (packet);
}
Ptr<Socket> m_socket;
Address m_peer;
};
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer vehicles;
vehicles.Create (3); // Autonomous vehicles
NodeContainer attacker;
attacker.Create (1); // Attacker
// Configure Wi-Fi
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
phy.SetChannel (channel.Create ());
WifiHelper wifi;
wifi.SetRemoteStationManager (“ns3::AarfWifiManager”);
WifiMacHelper mac;
Ssid ssid = Ssid (“Vehicle-SSID”);
mac.SetType (“ns3::StaWifiMac”, “Ssid”, SsidValue (ssid), “ActiveProbing”, BooleanValue (false));
NetDeviceContainer vehicleDevices;
vehicleDevices = wifi.Install (phy, mac, vehicles);
mac.SetType (“ns3::ApWifiMac”, “Ssid”, SsidValue (ssid));
NetDeviceContainer attackerDevice;
attackerDevice = wifi.Install (phy, mac, attacker);
// Install Internet stack
InternetStackHelper stack;
stack.Install (vehicles);
stack.Install (attacker);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer vehicleInterfaces = address.Assign (vehicleDevices);
Ipv4InterfaceContainer attackerInterface = address.Assign (attackerDevice);
// Set mobility model
MobilityHelper mobility;
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (vehicles);
mobility.Install (attacker);
// Create and configure the Vehicle application
for (uint32_t i = 0; i < vehicles.GetN (); ++i) {
Ptr<VehicleApplication> vehicleApp = CreateObject<VehicleApplication> ();
vehicles.Get (i)->AddApplication (vehicleApp);
vehicleApp->SetStartTime (Seconds (1.0));
vehicleApp->SetStopTime (Seconds (20.0));
}
// Create and configure the Auth application
Ptr<AuthApplication> authApp = CreateObject<AuthApplication> ();
vehicles.Get (1)->AddApplication (authApp);
authApp->SetStartTime (Seconds (1.0));
authApp->SetStopTime (Seconds (20.0));
// Create and configure the Encryption application
Ptr<EncryptionApplication> encryptionApp = CreateObject<EncryptionApplication> ();
vehicles.Get (1)->AddApplication (encryptionApp);
encryptionApp->SetStartTime (Seconds (1.0));
encryptionApp->SetStopTime (Seconds (20.0));
// Create and configure the IDS application
Ptr<IDSApplication> idsApp = CreateObject<IDSApplication> ();
vehicles.Get (1)->AddApplication (idsApp);
idsApp->SetStartTime (Seconds (1.0));
idsApp->SetStopTime (Seconds (20.0));
// Create and configure the Attacker application
Ptr<AttackerApplication> attackerApp = CreateObject<AttackerApplication> ();
attacker.Get (0)->AddApplication (attackerApp);
attackerApp->SetStartTime (Seconds (3.0));
attackerApp->SetStopTime (Seconds (4.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Here, we comprehensively provided the details from generating the network to implement the security features of Autonomous Vehicles Security in the ns3 tool. If you need any additional information of Autonomous vehicle security, we will offer them.
Get help with implementing autonomous vehicle security in your ns3 simulation. Our developers are here to support your project, so just share all the details with us for more assistance.