Learn: Encryption

Welcome!Today we'll learn about encryption, an important concept in computer networks and security. Let's explore how it works and why it's needed.

What is Encryption?Encryption is the process of converting data into a coded format to prevent unauthorised access. It ensures sensitive information such as passwords and personal data remains secure during transmission.

Why is Encryption Important?Encryption is crucial for protecting data from hackers, ensuring privacy, and enabling secure communication over networks like the Internet. Without encryption, sensitive information could be easily intercepted and misused.

How Does Encryption Work?Encryption uses an algorithm and a key to scramble data into an unreadable format. Only someone with the correct key can decrypt the data back into its original form.

Types of EncryptionSymmetric encryption uses the same key to encrypt and decrypt data, while asymmetric encryption uses a pair of keys: a public key for encryption and a private key for decryption.

Encryption in ActionWhen you make an online payment, your bank uses encryption to protect your card details while they are being sent over the Internet, ensuring that hackers cannot steal your information.

Review Time!Great work! You've learned about encryption, its importance, and how it works. Now, let's test your understanding with some questions.

Encryption in Real LifeEncryption is everywhere: from messaging apps like WhatsApp to online banking websites using HTTPS. It's the backbone of secure communication in the digital world.