To implement the supply chain security on ns3 has needs to encompass to emulate the network communication among numerous components of a supply chain and integrate the security mechanism to secure and safeguard the information and make sure that the integrity of the supply chain processes. The given below are the procedures on how to implement the supply chain security in ns3:
Step-by-Step implementation:
- Setup ns3 Environment
Make certain ns3 is installed in the system.
- Define the Network Topology
Generate a network topology that denotes the numerous entities in the supply chain, like suppliers, manufacturers, distributors, retailers, and customers.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
int main(int argc, char *argv[]) {
NodeContainer nodes;
nodes.Create(6); // 1 for supplier, 1 for manufacturer, 1 for distributor, 1 for retailer, 1 for customer, 1 for central server
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“5Mbps”));
pointToPoint.SetChannelAttribute(“Delay”, StringValue(“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install(nodes.Get(0), nodes.Get(1));
devices.Add(pointToPoint.Install(nodes.Get(1), nodes.Get(2)));
devices.Add(pointToPoint.Install(nodes.Get(2), nodes.Get(3)));
devices.Add(pointToPoint.Install(nodes.Get(3), nodes.Get(4)));
devices.Add(pointToPoint.Install(nodes.Get(4), nodes.Get(5)));
InternetStackHelper stack;
stack.Install(nodes);
Ipv4AddressHelper address;
address.SetBase(“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign(devices);
// Other network setup code
Simulator::Run();
Simulator::Destroy();
return 0;
}
- Implement Security Mechanisms
Add security mechanisms like encryption, authentication, and integrity checks to make certain the security of the data being transmitted among numerous entities in the supply chain.
Encryption
Implement an encryption to secure the confidentiality of the data being transmitted. We need to simulate this by creating an application that encrypts the data before sending it and decrypts it upon receipt.
class SecureApp : public Application {
public:
SecureApp() {}
virtual ~SecureApp() {}
void Setup(Ptr<Socket> socket, Address address, uint32_t packetSize, uint32_t nPackets, DataRate dataRate) {
m_socket = socket;
m_peer = address;
m_packetSize = packetSize;
m_nPackets = nPackets;
m_dataRate = dataRate;
}
private:
virtual void StartApplication(void) {
m_socket->Bind();
m_socket->Connect(m_peer);
SendPacket();
}
virtual void StopApplication(void) {
m_socket->Close();
}
void SendPacket(void) {
std::string data = “Sensitive Supply Chain Data”;
std::string encryptedData = Encrypt(data);
Ptr<Packet> packet = Create<Packet>((uint8_t*)encryptedData.c_str(), encryptedData.size());
m_socket->Send(packet);
if (++m_packetsSent < m_nPackets) {
ScheduleTx();
}
}
std::string Encrypt(const std::string &data) {
// Simple XOR encryption for demonstration purposes
std::string encrypted = data;
char key = ‘K’; // Encryption key
for (size_t i = 0; i < data.size(); ++i) {
encrypted[i] ^= key;
}
return encrypted;
}
void ScheduleTx(void) {
Time tNext(Seconds(m_packetSize * 8 / static_cast<double>(m_dataRate.GetBitRate())));
m_sendEvent = Simulator::Schedule(tNext, &SecureApp::SendPacket, this);
}
Ptr<Socket> m_socket;
Address m_peer;
uint32_t m_packetSize;
uint32_t m_nPackets;
DataRate m_dataRate;
EventId m_sendEvent;
uint32_t m_packetsSent;
};
Ptr<Socket> ns3TcpSocket = Socket::CreateSocket(nodes.Get(0), TcpSocketFactory::GetTypeId());
Ptr<SecureApp> secureApp = CreateObject<SecureApp>();
secureApp->Setup(ns3TcpSocket, InetSocketAddress(interfaces.GetAddress(1), 9), 1040, 1000, DataRate(“1Mbps”));
nodes.Get(0)->AddApplication(secureApp);
secureApp->SetStartTime(Seconds(1.0));
secureApp->SetStopTime(Seconds(10.0));
Authentication
Add an authentication mechanism to ensure that only authorized entities can communicate inside the supply chain.
class AuthApp : public Application {
public:
AuthApp() {}
virtual ~AuthApp() {}
void Setup(Ptr<Socket> socket, Address address) {
m_socket = socket;
m_peer = address;
}
private:
virtual void StartApplication(void) {
m_socket->Bind();
m_socket->Connect(m_peer);
Authenticate();
}
virtual void StopApplication(void) {
m_socket->Close();
}
void Authenticate(void) {
std::string authMessage = “AUTH_REQUEST”;
Ptr<Packet> packet = Create<Packet>((uint8_t*)authMessage.c_str(), authMessage.size());
m_socket->Send(packet);
}
void HandleRead(Ptr<Socket> socket) {
Ptr<Packet> packet;
Address from;
while ((packet = socket->RecvFrom(from))) {
uint8_t buffer[1024];
packet->CopyData(buffer, packet->GetSize());
std::string data = std::string((char*)buffer, packet->GetSize());
if (data == “AUTH_SUCCESS”) {
// Authentication successful, proceed with secure communication
}
}
}
Ptr<Socket> m_socket;
Address m_peer;
};
Ptr<Socket> authSocket = Socket::CreateSocket(nodes.Get(1), TcpSocketFactory::GetTypeId());
Ptr<AuthApp> authApp = CreateObject<AuthApp>();
authApp->Setup(authSocket, InetSocketAddress(interfaces.GetAddress(2), 9));
nodes.Get(1)->AddApplication(authApp);
authApp->SetStartTime(Seconds(1.0));
authApp->SetStopTime(Seconds(20.0));
- Monitor and Analyse Traffic
Use ns3 for observe capabilities to monitor and analyze network traffic to ensure the security mechanisms are working as expected.
AsciiTraceHelper ascii;
pointToPoint.EnableAsciiAll(ascii.CreateFileStream(“supply-chain-security.tr”));
pointToPoint.EnablePcapAll(“supply-chain-security”);
Ptr<FlowMonitor> flowMonitor;
FlowMonitorHelper flowHelper;
flowMonitor = flowHelper.InstallAll();
- Run the Simulation
Compile and run the simulation to observe the behavior and impact of the implemented security mechanisms.
./waf configure
./waf build
./waf –run your-simulation-script
- Analyse Results
Post-process the generated trace and pcap files to analyze the effectiveness of the supply chain security mechanisms. Tools like Wireshark can be used for pcap analysis, and ns3’s flow monitor can be used for traffic analysis.
In this script, we had implemented and executed how to secure the supply chain process using the ns3 framework and also if you need additional details regarding the supply chain security we will provided.
Need help setting up the Supply Chain Security ns3 simulation environment. Our developers can help with comparison analysis, so please send us all the important project details. We focus on various parts of the supply chain and work on integrating security measures to protect information and ensure the integrity of the supply chain processes provide you with good simulation results.