How to Implement OSI layers Security in OMNeT++

To implement OSI layers security in OMNeT++ with practical examples, we need to expand or adapt the existing modules in OMNeT++ environment especially that use the INET framework in which is extensively used for network simulations.

The below are the outline to implementation at each OSI layer with specific example.

Step-by-Step Implementation:

1. Physical Layer Security

• Example: Implementing Anti-Jamming Techniques
  • Step 1: To generate a new module in OMNeT++ that emulates a jammer device.
  • Step 2: Adjust the existing Radio module in INET to involve a jamming detection mechanism.
  • Step 3: Exxecute signal scrambling or frequency hopping to prevent jamming.
  • Configuration:

// In your .ned file

simple Radio {

parameters:

bool enableJammingDetection = default(false);

gates:

inout radioIn;

…

}

// In your .ini file

*.node[*].wlan[0].radio.enableJammingDetection = true;

2. Data Link Layer Security

• Example: Implementing MACsec (Media Access Control Security)
  • Step 1: Expand the Ethernet module to involve encryption and decryption at the MAC layer.
  • Step 2: Execute secure key exchange and integrity checks within the EthernetMac class.
  • Step 3: Adjust the EthernetFrame to carry encrypted payloads.
  • Configuration:

// Extend the EthernetMac class in your custom module

class SecureEthernetMac : public EthernetMac {

protected:

virtual void encryptFrame(EthernetFrame *frame);

virtual void decryptFrame(EthernetFrame *frame);

};

// In your .ini file

*.host[*].eth[0].macType = “SecureEthernetMac”;

3. Network Layer Security

• Example: Implementing IPsec (Internet Protocol Security)
  • Step 1: Expand the Ipv4 module to contain IPsec functionalities like Authentication Header (AH) and Encapsulating Security Payload (ESP).
  • Step 2: Execute the security policies and key management using an additional module or incoporate with an existing one.
  • Step 3: Adjust the routing table to integrate the secure routes.
  • Configuration:

// Modify Ipv4 module to include IPsec processing

class SecureIpv4 : public Ipv4 {

protected:

virtual void processReceivedPacket(Packet *packet);

virtual void applyIPsec(Packet *packet);

};

// In your .ini file

*.router[*].networkLayer.ipv4Type = “SecureIpv4”;

4. Transport Layer Security

• Example: Implementing TLS/SSL for TCP connections
  • Step 1: Expand the Tcp module to contain the TLS/SSL handshake and encryption functionalities.
  • Step 2: Execute certificate verification and session key generation within the TcpConnection class.
  • Step 3: Encrypt and decrypt the data payload during transmission.

Configuration:

// Extend Tcp class

class SecureTcp : public Tcp {

protected:

virtual void establishSecureConnection();

virtual void encryptPayload(Packet *packet);

virtual void decryptPayload(Packet *packet);

};

// In your .ini file

*.client[*].tcpType = “SecureTcp”;

5. Session Layer Security

• Example: Secure Session Management
  • Step 1: Expand the TcpApp module to contains the secure session establishment.
  • Step 2: Execute session tokens or cookies to handle the session states securely.
  • Step 3: Add timeout and re-authentication mechanisms.
  • Configuration:

// In your .ini file

*.client[*].tcpApp[0].type = “SecureTcpApp”;

6. Presentation Layer Security

• Example: Data Encryption and Format Security
  • Step 1: Execute the data encryption at the application layer or in the App module.
  • Step 2: Securely handle the data formats and transformations.
  • Step 3: Execute the integrity validates before decryption.

Configuration:

// Extend App class to include encryption/decryption

class SecureApp : public TcpApp {

protected:

virtual void encryptData(cMessage *msg);

virtual void decryptData(cMessage *msg);

};

// In your .ini file

*.client[*].appType = “SecureApp”;

7. Application Layer Security

• Example: Implementing HTTPS
  • Step 1: Adjust the HttpApp or TcpApp has SSL/TLS functionalities.
  • Step 2: To manage the certificate management and protect the HTTP headers.
  • Step 3: Apply data encryption and reliability validates for HTTP transactions.
  • Configuration:

// Extend HttpApp to support HTTPS

class SecureHttpApp : public HttpApp {

protected:

virtual void handleSecureHttpRequest(cMessage *msg);

};

// In your .ini file

*.client[*].appType = “SecureHttpApp”;

Simulation Execution

• Compile: After making all the modifications, recompile OMNeT++ project.
• Run: Implement the emulation using the opp_run command or from the OMNeT++ IDE.
• Analyse: To measure packet flows, encryption effectiveness, and protocol behaviour use OMNeT++ built-in tools.

Example Workflow

1. Physical Layer: To apply an anti-jamming mechanism in the radio module.
2. Data Link Layer: To protect the data link with MACsec.
3. Network Layer: Implement IPsec for secure IP communication.
4. Transport Layer: Execute TLS/SSL over TCP for secure data transmission.
5. Application Layer: Secure HTTP communication with HTTPS.

In the conclusion, we had delivered the information about how the OSI layers perform in OMNeT++ tool. We will intend to provide more information related to the OSI layers security. Let our team handle your OSI layers security in OMNeT++ implementation efficiently. You can count on us for the best project ideas with project performance support.