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WorksheetsCryptography
Total questions: 20
Worksheet time: 10mins
Which country do hieroglyphics come from?
Greece
South Africa
Spain
Egypt
How many symbols are there in the Martian alphabet?
7
9
5
2
Who invented the Enigma Cipher Machine?
The Americans
The Germans
The British
The Mexicans
What was the Enigma Cipher Machine used for?
To bake pancakes
To send secret messages
To iron clothes
To receive secret messages
Who used the Enigma Cipher Machine?
British codebreakers
Italian codebreakers
Spanish codebreakers
German codebreakers
Can you break this code?
Orange = 10
Orange = 5
Orange = 6
Orange = 2
This is an example of what type of cipher?
Enigma cipher
Pigpen cipher
Stream cipher
Atbash cipher
Before computers why were messages usually encrypted?
They weren't encrypted before computers
To share messages with people who were clever enough to solve them
So in war Commanders/leaders could communicate safely with their troops
All of these reasons
Who was the first know user of the Caesar Code?
Caesar Romanus
Julius Caesar
Alan Turing
There isn't one
When solving a code, we need a letter or a word to help us get started, what is this often referred to as?
Help
Support
Key
Answer
What machine was used during WWII to encrypt and decrypt German messages?
Enigma
Secret
Atbash
Puzzler
An encryption key is used to help decrypt messages
True
False
In Cryptography, an original message before being transformed, is called
Cipher Text
Simple Text
Plain Text
Filled Text
An encryption algorithm transforms plain text into:
Cipher text
Empty Text
Simple Text
Plain Text
What is encryption?
When you put data / text into code making it difficult to read or understand.
A secret or disguised way of writing; a code.
A formal language designed to communicate instructions to a machine
What is put in, taken in, or operated on by any process or system.
What is the process of converting ciphertext into plaintext called?
encryption
plaintext
decryption
cryptography
What is the problem with the following plain text to encrypt with a Caesar Cipher?
Is your birthday 9/30/1998?
Numbers cannot be encrypted
Symbols cannot be encrypted
It would be relatively easy to decipher after encryption
All of the above
What is the algorithm of Caesar's cipher?
Each letter is replaced with a particular symbol
Each letter is replaced with a particular number from 0 to 26, and numbers are replaced with letters.
Each letter is replaced with a letter a certain number of steps down the alphabet
What is the meaning of Greek words "crypt" or "cryph"
off
scary
away
hidden
What does the word cryptography mean?
The art of cooking or baking secret codes
The art of writing or solving secret codes
The art of drawing or painting secret codes
The art of throwing or catching secret codes
