Cryptography is a method of securing communication from unauthorized access or modification. 

Cryptography is used in various settings, such as online banking, messaging apps, emails, etc., to keep sensitive information private and secure. It involves using mathematical algorithms to scramble and encode data, making it unreadable to anyone who doesn’t have the key to unlock it.

There are mainly three types of cryptography, such as:

Symmetric key cryptography

Asymmetric key 

Cryptography

Hashing

In layman’s terms, cryptography is a method of encoding messages so that only those who are meant to receive them can understand them.

 Network Security is a method to protect the network and the devices connected to it from unauthorized access and attacks. 

By implementing proper and robust network security, you can be assured that no unauthorized user can access or modify sensitive data, thus ensuring the confidentiality, integrity, and availability of the network and its resources.

In order to implement robust network security, various technologies are used, such as 

Firewall

Intrusion Detection System (IDS) 

Intrusion Prevention System (IPS) 

Virtual Private Networks (VPN), etc. 

The main goal behind using these technologies is to create a secure environment for users to communicate and share information without worrying about unauthorized access or malicious activity.

In layman’s terms, network security is a method that protects the client’s data by ensuring that hackers can not get into your network easily.