WorksheetsDecrypting the Caesar Cipher Challenge
Total questions: 10
Worksheet time: 5mins
The Caesar cipher is a type of:
Substitution cipher
Transposition cipher
Stream cipher
Block cipher
If the word "HELLO" is encrypted using a Caesar cipher with a key of 3, what is the resulting ciphertext?
KHOOR
IFMMP
JGNNQ
EBIIL
Decrypt the message "WKH FDW VDW RQ WKH PDW" using a Caesar cipher with a key of 3.
THE CAT SAT ON THE MAT
THE DOG SAT ON THE MAT
THE CAT RAN ON THE MAT
THE CAT SAT IN THE HAT
What is the key if the plaintext "BRITAIN" is encrypted as "EULWDLQ" using a Caesar cipher?
2
3
4
5
Which letter does 'D' become if encrypted with a Caesar cipher key of 5?
I
H
F
J
Decrypt the ciphertext "QEB NRFZH YOLTK CLU GRJMP LSBO QEB IXWV ALD" using a Caesar cipher with a key of 23.
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE SLOW BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK GREY FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN DOG JUMPS OVER THE LAZY FOX
If the letter 'Z' is encrypted with a Caesar cipher key of 2, what does it become?
B
A
C
D
Which of the following is NOT a property of the Caesar cipher?
It uses a fixed shift for all letters
It is a symmetric cipher
It uses a variable key for each letter
It is a monoalphabetic cipher
If the ciphertext "FRPSXWHU" is decrypted with a Caesar cipher key of 3, what is the plaintext?
COMPUTER
COMPILER
CONSUMER
CONTAINER
What is the result of encrypting "LONDON" with a Caesar cipher key of 1?
MPOEPO
MPMEPO
MPMEON
MPNDPO
