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

What protocol is used to encrypt sensitive data like credit card information on the internet?

• HTTPS

• TCP/IP

• POP3

Encrypt the word 'cipher' using caesar cipher with a key 3

• FLSKHU

• FLSJIV

• GLSKGU

• FLTFDW

What is personal information?

• Your name, address, phone number

• Your dogs name

• Your favorite brand of clothes

• Your favourite chocolate bar

What is confidential information?

• Name, age, address,

• How much pocket money you get

• Family contact detials 

• your dogs name 

Who first used the Caesar Cipher?

• Caesar Romanus

• Alan Turing

• Julius Caesar

• None of these

An            algorithm transforms plain text into cipher text 

(a)  

Encrypt the word 'Quiz' using a 5 key cipher.

• TZLC

• TXKC

• Txlc

• TYMC

Encrypt the world 'School' with a key of 3

• wfjrrm

• vfkrro

• vfjrro

• wgkssp

What is Data Encryption?

• Encoding a message so that it cannot be understood by anyone other than the receiver

• Abbreviating data for quicker entry into a computer system

• Password protecting a file