Year 7 Cryptography Quiz 2

What is the main difference between a private key and a public key in encryption?

• They are the same key

• The public key is kept secret, and the private key is shared

• The public key is shared, and the private key is kept secret

• Both keys are used at the same time by the sender

What type of encryption uses both a public key and a private key?

• Symmetric encryption

• Asymmetric encryption

• Hieroglyphics

• Rail Fence Cipher

What is SSL used for?

• To make websites look nicer

• To encrypt data sent over the internet

• To store passwords on a computer

• To speed up web browsing

How can you tell if a website is using SSL encryption?

• The URL starts with `http://`

• The URL starts with `https://` and shows a padlock icon

• The website loads very quickly

• The website asks for a password before opening

What is the main method used in the Caesar Cipher?

• Swapping letters for numbers

• Replacing each letter with another letter a fixed number of places down the alphabet

• Using pictures instead of letters

• Hiding the message inside another message

What ancient civilization used hieroglyphics for writing?

• Romans

• Greeks

• Egyptians

• Chinese

What is cryptography?

• A type of ancient writing

• The study of codes and secret messages

• A type of math used in banking

• A computer programming language

What does 'decrypt' mean?

• To create a secret message

• To make a message harder to read

• To convert a coded message back into its original form

• To delete a message from a computer

How does Rail Fence Cipher work?

• It scrambles letters randomly

• It shifts letters forward in the alphabet

• It writes the message in a zigzag pattern before rearranging it

• It replaces each letter with a symbol

What was the Enigma Machine used for during World War II?

• Sending messages in Morse code

• Creating secret military codes

• Hacking into enemy computers

• Storing data on hard drives