Sia
Question
Computer Science
Posted 8 months ago
Leanne decides to use the Caesar Cipher encryption scheme to send a
secret message to her classmate.
Her process:
1. Leanne shares the key (the number 13) with her classmate.
2. Using the key, Leanne turns the message "Underground" into
"Hagretebhaq".
3. Leanne sends a letter with "Hagretebhaq" to her classmate.
4. Using the key, her classmate turns the message "Hagretebhaq" back
into "Underground".
Which of the steps could be labeled the "decryption" step?
Choose 1 answer:
A
Step 1
B
Step 2
C
Step 3
Step 4
D
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Answer from Sia
Posted 8 months ago
D
Key Concept
Decryption Step
Explanation
The decryption step in the Caesar Cipher process is when the encrypted message is converted back to its original form using the key. In this case, Step 4 is where Leanne's classmate uses the key to turn "Hagretebhaq" back into "Underground".
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