Practical Cryptology
Quiz 2 Sample Questions, Sructure and Reading Material
Quiz 2 consists of 4 questions. Each Question 25 points
Material: Vigenere and Hill Cipher encryption and decryption ONLY
Reading Material:
Chapter 2: 2.5 and 2.9
In the Quiz you have to EXPLAIN your answer in detail.
Sample Questions
- Using the KEY MATRIX A
Encrypt: yana
- Decrypt the message: THVE, which was encrypted using the key matrix
A
- Using the KEY MATRIX A
Encrypt: code
- Decrypt the message: WEZAHO, which was encrypted using the key matrix
A
- Find an inverse of matrix A
- Encrypt: CODE using first Vigenere Cipher with key CAT and then apply Hill cipher with the key
from problem 1
- Decrypt the message GQRD that was first encrypted by Hill cipher using matrix key from
problem 2 and then encrypted using Vigenere Cipher with key GO
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