
Hill Cipher Encoding Concepts

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What mathematical concept is essential for understanding the Hill Cipher?
Trigonometry
Probability
Matrix Math
Calculus
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do the numbers in 2x2 and 3x3 Hill Ciphers represent?
The number of steps in the process
The number of letters in the plaintext
The dimensions of the key matrix
The number of possible keys
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a 2x2 Hill Cipher, how is the plaintext prepared for encoding?
It is encrypted with a different cipher first
It is converted to binary
It is reversed
It is split into groups of two
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in encoding the word 'lemonade' using a Hill Cipher?
Use a different key for each letter
Convert letters to numbers
Find the inverse of the key
Group letters into threes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is performed after converting letters to numbers in the Hill Cipher process?
Addition
Subtraction
Matrix Multiplication
Division
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying the key matrix by the letter matrices in the Hill Cipher?
Plaintext
Ciphertext
Random text
Unchanged text
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What mathematical operation is used to finalize the encoded numbers in the Hill Cipher?
Exponentiation
Logarithm
Square root
Modulus 26
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