In our last blog “CISSP domain 4: Communications and network security” we gave a brief overview of the two fundamental approaches to reach domain 4. Continuing the informational blog, in the post, we will discuss the secure communication protocol which is also an approach to communication and network security. So, without wasting any moment let’s begin with the blog:
What is the Secure Communication Protocol?
When it comes to securing the networks and devices, there are hundreds of ways to do that but the only problem is not all of them are ethical or legal. The communication protocol has defined rules for different devices that exchange information throughout the communication. The rules defined for the communication protocol can be syntax, semantics and error defection of the data cases. These rules are in place to ensure the successful transmission of the data between the two or multiple entities. The parties that are part of the communication must agree with each other so, the message can pass from one entity to another without any hurdle.
However, the different devices in the communication chain make it sophisticated to address issues. Due to this obstacle, the Open Systems Interconnection (OSI) model was developed to break down the issues and delegate duties in several layers of the communication chain. The OSI model also carved the path to creating the four-layer transmission control and Internet protocol and internet protocol is the base of the practical and workable protocols. Let’s take a glance at some of the key protocols of communication protocols you will cover in the Cyber Security Training Course:
Secure Sockets Layer (SSL)
With the growing technology, computer networks and servers are required to handle more and more complicated online activities. The crucial data through this path can always put the organization under the cyber-attacks like spoofing and wiretapping. If the user sends critical information like the credit card number and the connection between users and the receiver gets cut off then, a malicious hacker can easily seize this information and use it for personal gain.
One of the most effective methods to protect your connection is encrypted. Secure Sockets Layer (SSL) encryption solution that provide connection security between two or more parties. The SSL three main objectives:
- Privacy Projection
- Identity Authentication
In order to achieve all three objectives, SSL adopts the hybrid encryption methodology that involves symmetric and asymmetric. In the entire process, both parties exchange several keys to ensure the identity of the webserver to establish a secure connection between parties. Secured HTTP and HTTPs are a fine example of SSL encryption.
Transport Layer Security (TLS)
The Transport Layer Security (TLS) walks side by side with the SSL encryption. In other words, you can say that TLS is the successor of the SSL. Although the framework of TLS is similar to the SSL, some key differences are there. As an aspirant while debugging and troubleshooting issues with the TLS, you need to consider two things:
- First: TLS works upon the layer of the OSI model
- Second: the final version of SSL ends at SSL v.30 and version after that is renamed as renamed TLS v.1.0
The main advantage of TLS is that it has 23 alert descriptions while SSL has only 12 alert descriptions.
swIPe IP Security Protocol (swIPe)
The swipe is an experimental protocol that came into the light in 1993. The ultimate objective of this protocol is to provide end-to-end communication. With the swiPe protocol, the organization can further strengthen the cryptocurrency strength. You can further read about this in the CISSP Certification Training Course.
That’s it today, we will further discuss the Authentication protocols in our next blog post. Until then, you can read blogs and articles related to cybersecurity on the ProICT Training.