To implement the multi-factor authentication (MFA) in ns3 has needs to emulate the network scenarios then execute the MFA process and applying the access control based on effective authentication. The given below is the detailed procedure on how to implement the basic MFA system in ns3:
Step-by-Step Implementation:
Step 1: Set Up ns3 Environment
- Install ns3: Install ns3 in the system.
- Familiarize yourself with ns3: Read through the ns3 tutorial to know the simple concepts and structure of ns3 simulations.
Step 2: Define the Network Topology
- Create a Simple Network: Describe a basic network topology using ns3. This contains to creating nodes, setting up channels, and configuring IP addresses.
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/point-to-point-module.h”
using namespace ns3;
int main(int argc, char *argv[]) {
NodeContainer nodes;
nodes.Create(3); // Example: 3 nodes (1 server, 1 client, 1 attacker)
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“5Mbps”));
pointToPoint.SetChannelAttribute(“Delay”, StringValue(“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install(nodes);
InternetStackHelper stack;
stack.Install(nodes);
Ipv4AddressHelper address;
address.SetBase(“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign(devices);
Simulator::Run();
Simulator::Destroy();
return 0;
}
Step 3: Implement Multi-Factor Authentication Mechanism
- Create MFA Authentication Application: To build an application or module that simulates the MFA process and this contains to checking multiple authentication factors such as passwords and one-time tokens.
class MFAAuthenticationApp : public Application {
public:
MFAAuthenticationApp() {}
virtual ~MFAAuthenticationApp() {}
void SetAuthenticationCriteria(std::function<bool(Ptr<Node>)> criteria) {
m_criteria = criteria;
}
private:
virtual void StartApplication() {
// Schedule the first authentication check
Simulator::Schedule(Seconds(1.0), &MFAAuthenticationApp::AuthenticateNode, this);
}
virtual void StopApplication() {
// Teardown code
}
void AuthenticateNode() {
Ptr<Node> node = GetNode();
if (m_criteria(node)) {
// Node is authenticated
std::cout << “Node ” << node->GetId() << ” is authenticated with MFA.” << std::endl;
} else {
// Node is not authenticated
std::cout << “Node ” << node->GetId() << ” failed MFA.” << std::endl;
// Take appropriate action (e.g., block communication)
}
// Reschedule the next authentication check
Simulator::Schedule(Seconds(1.0), &MFAAuthenticationApp::AuthenticateNode, this);
}
std::function<bool(Ptr<Node>)> m_criteria;
};
Integrate MFA Authentication Logic: Define the logic for multi-factor authentication. This could involve checking passwords and one-time tokens.
Ptr<MFAAuthenticationApp> authApp = CreateObject<MFAAuthenticationApp>();
authApp->SetAuthenticationCriteria([](Ptr<Node> node) {
// Define MFA logic (e.g., check passwords and one-time tokens)
bool passwordCorrect = true; // Placeholder for password check
bool tokenCorrect = true; // Placeholder for token check
return passwordCorrect && tokenCorrect;
});
Ptr<Node> clientNode = nodes.Get(1); // Example: Client node
clientNode->AddApplication(authApp);
Step 4: Enforce Access Control Based on Authentication
- Create Access Control Application: To build an application that applies access control based on the authentication outcomes. Nodes that fail authentication should be blocked or restricted.
class AccessControlApp : public Application {
public:
AccessControlApp() {}
virtual ~AccessControlApp() {}
void SetAccessControlCriteria(std::function<bool(Ptr<Node>)> criteria) {
m_criteria = criteria;
}
private:
virtual void StartApplication() {
// Schedule the first access control check
Simulator::Schedule(Seconds(1.0), &AccessControlApp::EnforceAccessControl, this);
}
virtual void StopApplication() {
// Teardown code
}
void EnforceAccessControl() {
Ptr<Node> node = GetNode();
if (m_criteria(node)) {
// Node is allowed to communicate
std::cout << “Node ” << node->GetId() << ” is allowed to communicate.” << std::endl;
} else {
// Node is not allowed to communicate
std::cout << “Node ” << node->GetId() << ” is not allowed to communicate.” << std::endl;
// Take appropriate action (e.g., block communication)
}
// Reschedule the next access control check
Simulator::Schedule(Seconds(1.0), &AccessControlApp::EnforceAccessControl, this);
}
std::function<bool(Ptr<Node>)> m_criteria;
};
Integrate Access Control Logic: Define the logic for enforcing access control based on authentication results
Ptr<AccessControlApp> accessControlApp = CreateObject<AccessControlApp>();
accessControlApp->SetAccessControlCriteria([](Ptr<Node> node) {
// Define access control logic (e.g., allow or block communication based on authentication)
return node->GetId() == 1; // Example: Only allow communication for authenticated node with ID 1
});
Ptr<Node> serverNode = nodes.Get(0); // Example: Server node
serverNode->AddApplication(accessControlApp);
Step 5: Simulate and Analyze Results
- Run the Simulation: Run the simulation to observe the behaviour of the MFA and access control mechanisms.
authApp->SetStartTime(Seconds(2.0));
authApp->SetStopTime(Seconds(10.0));
accessControlApp->SetStartTime(Seconds(2.0));
accessControlApp->SetStopTime(Seconds(10.0));
Simulator::Run();
Simulator::Destroy();
- Collect Metrics: to gather the performance metrics to measure the performance of your MFA and access control systems, like the number of authenticated nodes, blocked nodes, and overall network performance.
- Visualize Results: Use tools like Gnuplot or Python’s Matplotlib to visualize the simulation results and analyse the effectiveness of your MFA and access control mechanisms
Finally, we had implemented a multi-factor authentication in ns3 detailed manner. We provide related information about multi-factor authentication how it adjust and perform in diverse scenarios.
For additional assistance, please contact us regarding the implementation of Multi-Factor Authentication in NS3program.