To implement the network Identity and Access Management (IAM) in ns3 has consists to mimic the authentication, authorization, and accounting (AAA) mechanisms that usually found in the real-world IAM system. Since ns3 does not have built-in support for IAM, so we must extend its functionality by executing these mechanisms. For implementation of network Identity and Access Management in the ns3 program we provide you complete guidance with brief explanation, along with project performance share with us all your details for more support. for best project execution and thesis ideas you can approach us.
The given below are the procedures to implement the IAM in ns3:
Step-by-Step Procedure:
Step 1: Set Up ns3 Environment
- Install ns3: Make sure ns3 is installed in the system.
- Create a new simulation script: Start by creating a new simulation script in the scratch directory of ns3.
Step 2: Define the Network Topology
Describe the network topology that contains the nodes (devices), links, and their configurations. For example:
#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;
NS_LOG_COMPONENT_DEFINE (“IamExample”);
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer nodes;
nodes.Create (3);
// Create point-to-point link
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“5Mbps”));
pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install (nodes);
// Install Internet stack
InternetStackHelper stack;
stack.Install (nodes);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign (devices);
// Create and configure applications…
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Step 3: Implement Authentication Mechanism
Generate a simple authentication mechanism. For an instance, we need to generate an application that simulates the authentication process:
class AuthServer : public Application {
public:
AuthServer () {}
virtual ~AuthServer () {}
void Authenticate (Ptr<Socket> socket, Address from, std::string credentials) {
// Simple authentication logic
if (credentials == “valid-credentials”) {
NS_LOG_INFO (“Authentication successful for ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
} else {
NS_LOG_INFO (“Authentication failed for ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
}
}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), TcpSocketFactory::GetTypeId ());
m_socket->Bind ();
m_socket->Listen ();
m_socket->SetRecvCallback (MakeCallback (&AuthServer::HandleRequest, this));
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void HandleRequest (Ptr<Socket> socket) {
Address from;
Ptr<Packet> packet = socket->RecvFrom (from);
std::string credentials = std::string ((char*)packet->PeekData ());
Authenticate (socket, from, credentials);
}
Ptr<Socket> m_socket;
};
Step 4: Implement Authorization Mechanism
Add authorization logic to check if a user has the right permissions:
class AuthServer : public Application {
public:
AuthServer () {}
virtual ~AuthServer () {}
void Authenticate (Ptr<Socket> socket, Address from, std::string credentials) {
// Simple authentication logic
if (credentials == “valid-credentials”) {
NS_LOG_INFO (“Authentication successful for ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
Authorize (from);
} else {
NS_LOG_INFO (“Authentication failed for ” << InetSocketAddress::ConvertFrom (from).GetIpv4 ());
}
}
void Authorize (Address from) {
// Simple authorization logic
std::string ip = InetSocketAddress::ConvertFrom (from).GetIpv4 ().ToString ();
if (ip == “10.1.1.2”) { // Example IP-based authorization
NS_LOG_INFO (“Authorization successful for ” << ip);
} else {
NS_LOG_INFO (“Authorization failed for ” << ip);
}
}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), TcpSocketFactory::GetTypeId ());
m_socket->Bind ();
m_socket->Listen ();
m_socket->SetRecvCallback (MakeCallback (&AuthServer::HandleRequest, this));
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
void HandleRequest (Ptr<Socket> socket) {
Address from;
Ptr<Packet> packet = socket->RecvFrom (from);
std::string credentials = std::string ((char*)packet->PeekData ());
Authenticate (socket, from, credentials);
}
Ptr<Socket> m_socket;
};
Step 5: Deploy the IAM Application
Instantiate the IAM application and deploy it on a node:
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer nodes;
nodes.Create (3);
// Create point-to-point link
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“5Mbps”));
pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install (nodes);
// Install Internet stack
InternetStackHelper stack;
stack.Install (nodes);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign (devices);
// Create and configure the AuthServer application
Ptr<AuthServer> authServer = CreateObject<AuthServer> ();
nodes.Get (0)->AddApplication (authServer);
authServer->SetStartTime (Seconds (1.0));
authServer->SetStopTime (Seconds (10.0));
// Simulate sending authentication requests from client nodes…
// …
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Step 6: Simulate Authentication Requests
Simulate client nodes sending authentication requests to the AuthServer:
class AuthClient : public Application {
public:
AuthClient () : m_socket (0) {}
virtual ~AuthClient () {}
void RequestAuthentication (std::string credentials) {
Ptr<Packet> packet = Create<Packet> ((uint8_t*)credentials.c_str (), credentials.size ());
m_socket->Send (packet);
}
protected:
virtual void StartApplication () {
m_socket = Socket::CreateSocket (GetNode (), TcpSocketFactory::GetTypeId ());
m_socket->Connect (InetSocketAddress (Ipv4Address (“10.1.1.1”), 9)); // AuthServer IP and port
Simulator::Schedule (Seconds (2.0), &AuthClient::RequestAuthentication, this, “valid-credentials”);
}
virtual void StopApplication () {
if (m_socket) {
m_socket->Close ();
m_socket = 0;
}
}
private:
Ptr<Socket> m_socket;
};
int main (int argc, char *argv[]) {
CommandLine cmd;
cmd.Parse (argc, argv);
// Create nodes
NodeContainer nodes;
nodes.Create (3);
// Create point-to-point link
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“5Mbps”));
pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install (nodes);
// Install Internet stack
InternetStackHelper stack;
stack.Install (nodes);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign (devices);
// Create and configure the AuthServer application
Ptr<AuthServer> authServer = CreateObject<AuthServer> ();
nodes.Get (0)->AddApplication (authServer);
authServer->SetStartTime (Seconds (1.0));
authServer->SetStopTime (Seconds (10.0));
// Create and configure the AuthClient application
Ptr<AuthClient> authClient = CreateObject<AuthClient> ();
nodes.Get (1)->AddApplication (authClient);
authClient->SetStartTime (Seconds (2.0));
authClient->SetStopTime (Seconds (10.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
In this script, we understood the concept of Identity and Access Management and their implementation process to execute in the ns3 tool and then we also deliver the additional valuable insights regarding the Identity and Access Management.