Cryptography

Who was the first know user of the Caesar Cipher?

• Caesar Romanus

• Julius Caesar

• Alan Turing

• There isn't one

What machine was used during WWII to encrypt and decrypt German messages?

• Enigma
• Atbash
• Secret
• Puzzler

What was the name of the man who led the team that cracked the German's "Enigma Code" in WW2?

• Tim Berners-Lee

• Alan Turing

• Stephen Hawking

• Bill Gates

Which one of the following statements is FALSE?

• Cracking the Enigma Code shortened WW2 by at least two years and saved millions of lives

• Alan Turing was the first person to come up with the idea of a programmable machine

• Alan Turing was one of the pioneers of modern computing

• Polish mathematicians were the first ones to crack the Enigma Code

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

• Simple Text

• Plain Text

• Cipher Text

• Filled Text

An encryption algorithm transforms plain text into:

• Cipher text

• Simple Text

• Empty Text

• Plain Text

_______ is the science and art of transforming messages to make them secure and immune to attacks.

• Cryptography

• Cryptoanalysis

• neither Cryptography nor Cryptoanalysis

• either Cryptography or Cryptoanalysis

A(n) ______ algorithm transforms cipher text to plain text.

• Encryption

• Decryption

The _______ is a number or a set of numbers on which the cipher operates.

• secret

• cipher

• key

• none of the mentioned

The art and science of breaking the cipher text is known as

• Cryptanalysis

• Cryptography

• Staganography

• Watermarking