Question 1

What is cryptography?

Accepted Answer

Cryptography is like secret code-making for keeping messages safe. It helps people share information securely so others can't easily read it.

Question 2

Why do we need cryptography?

Accepted Answer

We need cryptography to keep our information private, like when we send a message to a friend. It makes sure that only the person we want to see it can read it.

Question 3

How does cryptography work?

Accepted Answer

Cryptography uses special keys and rules to change messages into secret codes. Only someone with the right key can change them back to the original message.

Question 4

What is a key in cryptography?

Accepted Answer

A key is like a secret password used to open a code. It helps to lock and unlock the secret messages.

Question 5

What is encryption?

Accepted Answer

Encryption is the process of changing a message into secret code. It keeps the message hidden from anyone who doesn't have the special key.

Question 6

What is decryption?

Accepted Answer

Decryption is when you change the secret code back into the original message. You need the right key to do this.

Question 7

What is a cipher?

Accepted Answer

A cipher is a method or a way to create secret codes. It's like the plan or recipe for making codes.

Question 8

Can anyone break a secret code?

Accepted Answer

Some codes are super strong and hard to break without the key, but if someone is very clever, they might be able to figure it out. That's why it's important to keep making codes better and safer.

Question 9

What is a strong password?

Accepted Answer

A strong password is a secret word or phrase that is hard for others to guess. It often includes a mix of letters, numbers, and symbols.

Question 10

Why should I use a strong password?

Accepted Answer

A strong password helps protect your information from being accessed by others. It makes it harder for someone to guess and keeps your stuff safe.

Question 11

What is a hacker?

Accepted Answer

A hacker is someone who tries to break into computer systems or steal information. Some hackers do bad things, but some use their skills to help make computers safer.

Question 12

What is a secure website?

Accepted Answer

A secure website protects your information when you visit it or share something. You can tell it's secure if the web address starts with 'https' and has a little lock symbol.

Question 13

How do websites keep information private?

Accepted Answer

Websites use cryptography to encrypt your information. This keeps it private while it's being sent over the internet, like a secret code.

Question 14

What is an example of cryptography in everyday life?

Accepted Answer

When you send a text message to a friend using an app and nobody else can read it, that's cryptography at work. It makes sure only you and your friend can see the message.

Question 15

What's the difference between public and private keys?

Accepted Answer

Public keys are like open locks anyone can use, but only the private key can unlock them. It's like a mailbox where anyone can drop a letter, but only you have the key to get the letters out.

Question 16

What is 'SSL' or 'TLS'?

Accepted Answer

SSL and TLS are systems that help websites protect information you share, like your passwords or credit card numbers. They use cryptography to keep things safe online.

Question 17

What happens if someone gets my password?

Accepted Answer

If someone gets your password, they might be able to access your accounts and see or change your information. That's why it's important to keep passwords secret and strong.

Question 18

How can I make sure my online information is secure?

Accepted Answer

You can keep your online information secure by using strong passwords, not sharing them, and only visiting secure websites. It's also helpful to use apps and services that have good security features.

Question 19

What's a digital signature?

Accepted Answer

A digital signature is like a special seal that shows a digital document is real and hasn't been changed. It's used to give authenticity, like signing a paper letter with your name.

Question 20

What is a firewall?

Accepted Answer

A firewall is like a virtual wall that keeps unwanted visitors out of your computer. It helps protect your computer from hackers and bad software.

The Basics of Cryptography: Understanding Secure Communication - 20 FAQs Explained Simply