To implement the biometric security in ns3, we have to simulate biometric devices and their system’s network, to protect the biometric data during transmission and processing by integrating security mechanisms, we have to make sure the sensitive information’s integrity and privacy. We have conducted the implementation of biometric security within the ns3 program, accompanied by a performance analysis.
Below, we offer the step-by-step guide on how to implement biometric security in ns3:
Step-by-Step Implementation:
- Setup ns3 Environment
Make sure that you have ns3 installed on your system and it is properly configured.
- Define the Network Topology
Create a network topology that embodies diverse biometric devices (e.g., fingerprint scanners, facial recognition cameras) and their communication paths, including a central server for biometric data processing and storage.
#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(5); // 1 for biometric device A, 1 for biometric device B, 1 for biometric device C, 1 for central server, 1 for attacker
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“10Mbps”));
pointToPoint.SetChannelAttribute(“Delay”, StringValue(“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install(nodes.Get(0), nodes.Get(3)); // Device A to server
devices.Add(pointToPoint.Install(nodes.Get(1), nodes.Get(3))); // Device B to server
devices.Add(pointToPoint.Install(nodes.Get(2), nodes.Get(3))); // Device C to server
devices.Add(pointToPoint.Install(nodes.Get(4), nodes.Get(3))); // Attacker to server
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 Biometric Data Transmission
Simulate the transmission of biometric data from the devices to the central server which contains the security measures of an application by creating an application.
class BiometricDataApp : public Application {
public:
BiometricDataApp() {}
virtual ~BiometricDataApp() {}
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 = “Biometric 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) {
// Implement encryption (e.g., AES encryption)
return data; // Placeholder
}
void ScheduleTx(void) {
Time tNext(Seconds(m_packetSize * 8 / static_cast<double>(m_dataRate.GetBitRate())));
m_sendEvent = Simulator::Schedule(tNext, &BiometricDataApp::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> biometricSocket = Socket::CreateSocket(nodes.Get(0), TcpSocketFactory::GetTypeId());
Ptr<BiometricDataApp> biometricApp = CreateObject<BiometricDataApp>();
biometricApp->Setup(biometricSocket, InetSocketAddress(interfaces.GetAddress(3), 9), 1040, 1000, DataRate(“1Mbps”));
nodes.Get(0)->AddApplication(biometricApp);
biometricApp->SetStartTime(Seconds(1.0));
biometricApp->SetStopTime(Seconds(10.0));
- Implement Security Mechanisms
Make certain the security of the biometric data by including security mechanisms like encryption, authentication, and intrusion detection.
Encryption
We can protect the secrecy of the biometric data being transmitted by executing encryption.
class SecureBiometricDataApp : public BiometricDataApp {
public:
SecureBiometricDataApp() {}
virtual ~SecureBiometricDataApp() {}
private:
virtual void SendPacket(void) override {
std::string data = “Sensitive Biometric 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) {
// Implement encryption (e.g., AES encryption)
return data; // Placeholder
}
};
Ptr<Socket> secureBiometricSocket = Socket::CreateSocket(nodes.Get(0), TcpSocketFactory::GetTypeId());
Ptr<SecureBiometricDataApp> secureBiometricApp = CreateObject<SecureBiometricDataApp>();
secureBiometricApp->Setup(secureBiometricSocket, InetSocketAddress(interfaces.GetAddress(3), 9), 1040, 1000, DataRate(“1Mbps”));
nodes.Get(0)->AddApplication(secureBiometricApp);
secureBiometricApp->SetStartTime(Seconds(1.0));
secureBiometricApp->SetStopTime(Seconds(10.0));
Authentication
Make certain that only permitted entities can transfer the biometric data by adding an authentication mechanism.
class AuthenticatedBiometricDataApp : public SecureBiometricDataApp {
public:
AuthenticatedBiometricDataApp() {}
virtual ~AuthenticatedBiometricDataApp() {}
private:
virtual void SendPacket(void) override {
std::string data = “AUTH_REQUEST”;
std::string authenticatedRequest = Authenticate(data);
std::string encryptedRequest = Encrypt(authenticatedRequest);
Ptr<Packet> packet = Create<Packet>((uint8_t*)encryptedRequest.c_str(), encryptedRequest.size());
m_socket->Send(packet);
if (++m_packetsSent < m_nPackets) {
ScheduleTx();
}
}
std::string Authenticate(const std::string &data) {
// Implement authentication (e.g., adding a digital signature)
return data; // Placeholder
}
};
Ptr<Socket> authBiometricSocket = Socket::CreateSocket(nodes.Get(0), TcpSocketFactory::GetTypeId());
Ptr<AuthenticatedBiometricDataApp> authBiometricApp = CreateObject<AuthenticatedBiometricDataApp>();
authBiometricApp->Setup(authBiometricSocket, InetSocketAddress(interfaces.GetAddress(3), 9), 1040, 1000, DataRate(“1Mbps”));
nodes.Get(0)->AddApplication(authBiometricApp);
authBiometricApp->SetStartTime(Seconds(1.0));
authBiometricApp->SetStopTime(Seconds(10.0));
- Implement Intrusion Detection System (IDS)
During the transmission of biometric data, we have to add an IDS to monitor and detect any malicious activity.
class IDSApp : public Application {
public:
IDSApp() {}
virtual ~IDSApp() {}
void Setup(Ptr<Socket> socket) {
m_socket = socket;
}
private:
virtual void StartApplication(void) {
m_socket->Bind();
m_socket->Listen();
m_socket->SetRecvCallback(MakeCallback(&IDSApp::HandleRead, this));
}
virtual void StopApplication(void) {
m_socket->Close();
}
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());
// Implement detection logic
if (DetectMaliciousActivity(data)) {
// Take appropriate action
}
}
}
bool DetectMaliciousActivity(const std::string &data) {
// Simple example of detection logic
return data.find(“malicious”) != std::string::npos;
}
Ptr<Socket> m_socket;
};
Ptr<Socket> idsSocket = Socket::CreateSocket(nodes.Get(2), TcpSocketFactory::GetTypeId());
Ptr<IDSApp> idsApp = CreateObject<IDSApp>();
idsApp->Setup(idsSocket);
nodes.Get(2)->AddApplication(idsApp);
idsApp->SetStartTime(Seconds(0.0));
idsApp->SetStopTime(Seconds(20.0));
- Monitor and Analyze Traffic
To monitor, we can use ns3’s tracing capabilities. To ensure the security mechanisms which are working as predicted by analyzing the network traffic.
AsciiTraceHelper ascii;
pointToPoint.EnableAsciiAll(ascii.CreateFileStream(“biometric-security.tr”));
pointToPoint.EnablePcapAll(“biometric-security”);
Ptr<FlowMonitor> flowMonitor;
FlowMonitorHelper flowHelper;
flowMonitor = flowHelper.InstallAll();
- Run the Simulation
Compile and run the simulation to observe the behavior and effect of the implemented security mechanisms.
./waf configure
./waf build
./waf –run your-simulation-script
- Analyze Results
Post-process the generated trace and pcap files to analyze the efficiency of the biometric security mechanisms. Wireshark can be used for pcap analysis, and ns3’s flow monitor can be used for traffic analysis.
Finally, we comprehensively offered the implementation of Biometric Security in the ns3 tool. For future purpose, we can also provide you any added details of biometric data and its security measures.