Simple Encryption

What is the Caesar cipher?

• A simple encryption method that involves replacing each letter in a message with one ahead or behind in the alphabet

• A complex encryption method using two keys

• A way of password protecting a file

A word has been encrypted with a Caesar cipher to CBU. The key used was 1. What was the original word?

• abc

• 3

• Bat

• one

When I encrypt a message, I change plain text to

When I convert our number system into a series of 1s and 0s for use in a computer, I have converted it to ________?

The word 'encryption' means to ----------- a message so that no one else can understand it.

• Copy

• scramble

• delete

• solve

What does this padlock sign mean in the address bar of your browser?

• The site is secure

• There is a padlock available for purchase

• The page is locked down for some odd reason

If the same key is used to encrypt and decrypt a message, this is known as? 

• Symmetric encryption
• Encryption doesn't exist!
• Asymmetric encryption
• Same-key encryption

What is the purpose of encryption?

• To keep data secure from unauthorised access so it cannot be understood

• To hide files

• To reduce the file size

In which form of encryption do the sender and receiver share the same private key?

• Symmetric encryption
• Asymmetric encryption
• Hashing encryption

In Cryptography, the original message, before being transformed, is called

• Simple Text

• Plain Text

• Cipher Text

• Filled Text