Cryptography Quiz

What does encryption do to a message?

• Makes it shorter

• Changes it into a secret code

• Translates it into another language

• Deletes it

What is decryption?

• Turning a secret code back into the original message

• Making a message longer

• Writing a message in a different language

• Erasing a message

In the example given, what is the encrypted message for "HELLO" with shift key 3?

• HULLO

• KHOOR

• HILLO

• HALLO

What is the Caesar cipher?

• A method to write poems

• A simple way to encrypt messages by shifting letters

• A way to draw pictures

• A method to count numbers

How does the Caesar cipher work?

• By changing the color of the letters

• By shifting each letter in the alphabet by a certain number of places

• By making the letters bold

• By writing the message backwards

What is the first step in using the Caesar cipher?

• Choose a color

• Choose a shift number

• Choose a font

• Choose a language

What happens to each letter in a message when using the Caesar cipher?

• It is deleted

• It is moved forward by the shift number

• It is turned upside down

• It is made larger

What does the Caesar cipher shift?

• Words

• Sentences

• Letters

• Paragraphs

What is the result of decryption?

• A longer message

• The original message

• A colorful message

• A shorter message

What is the purpose of changing the message in cryptography?

• To make it more interesting

• So only your friend knows how to read it

• To make it longer

• To make it rhyme