Cryptology Exam: 20 Points
Name:
20 Points
Period:
Instructions: Answer each question with complete sentences or solve the encrypted
message.
1. Define code, cipher, and concealement messages.
2. Explain what a skytale is and how it was used to encrypt messages.
3. Give and explain one or more examples of how cryptology was used during WWII.
4. List and explain 2 or more decrypting methods or patterns.
5. Decipher the following message:
Put the message "Pigs will fly in the sky tonight." into symbols font for students to decipher.
6. Decipher the following message:
65-115-32-108-111-110-103-32-97-115-32-116-104-101-114-101-32-105-115-32-104-111-112-101-32-116-104-101-114-101-32-105-115-32-97-32-102-117-116-117-114-101-32-102-111-114-32-100-114-101-97-109-115-46
7. Explain how invisible ink is created and read. Provide a list of possible active
ingredients for the recipe.
8. Decipher the following message:
Mfuufs!tvctujuvujpo!jt!fbtz!up!fodjqifs!cvu!ibse!up!efdjqifs/
9. Convert the following set of ASCII numbers into binary numbers.
66-105-110-97-114-121-32-110-117-109-98-101-114-115-32-97-114-101-32-97-108-108-32-116-104-97-116-32-97-32-99-111-109-112-117-116-101-114-32-99-97-110-32-112-114-111-99-101-115-115-44-32-48-39-115-32-97-110-100-32-49-39-115-46
*Extra Credit (2 points): Decipher the message in #9.
10. Explain how and why
the computer uses ASCII and binary numbers.