The key agreement protocol is an essential component of secure communication. The protocol is used to establish a shared secret key between two parties that can be used to encrypt and decrypt information. Wireshark is a powerful open-source network analysis tool that can be used to capture and analyze network traffic in real-time. In this article, we will discuss the key agreement protocol and how it can be analyzed using Wireshark.

What is the key agreement protocol?

The key agreement protocol is an algorithm that enables two parties to derive a shared secret key based on their public keys. The public keys are exchanged between the parties, and the key agreement protocol performs a series of computations to derive the shared secret key. The shared secret key can then be used to encrypt and decrypt information between the parties.

The key agreement protocol is used in many security protocols, including SSL/TLS, SSH, and IPSec. These protocols rely on the key agreement protocol to establish a secure communication channel between two parties.

How to analyze the key agreement protocol using Wireshark

Wireshark is a powerful tool that can be used to analyze network traffic in real-time. To analyze the key agreement protocol using Wireshark, you need to capture the network traffic and filter it based on the protocol you want to analyze.

To capture the network traffic, follow these steps:

1. Open Wireshark and select the network interface you want to capture the traffic from.

2. Click on the ”Capture” button to start the capture process.

3. Perform the action that initiates the key agreement protocol.

4. Stop the capture process by clicking on the ”Stop” button.

To filter the captured traffic based on the key agreement protocol, follow these steps:

1. Click on the ”Filter” button in the Wireshark interface.

2. Enter the filter expression for the key agreement protocol. The filter expression depends on the protocol you are analyzing. For example, to filter SSL/TLS traffic, you can use the filter expression ”ssl.handshake”.

3. Click on the ”Apply” button to apply the filter.

Once you have filtered the traffic, you can analyze the key agreement protocol messages exchanged between the parties. The key agreement protocol messages typically contain the public keys exchanged between the parties and the computations performed to derive the shared secret key.

Conclusion

The key agreement protocol is an essential component of secure communication. Analyzing the key agreement protocol using Wireshark can help you understand how it works and identify any issues with the protocol implementation. With Wireshark, you can capture and filter network traffic to analyze the key agreement protocol messages exchanged between two parties.