Q# Question An swer A. What is the main goal of using symmetric encrypti on model? B. What are the two requirements for the secure use of symmetric encrypti on? 1- 2- C. What is plaintest? D. What does encryption algorithm mean? Explain your answer. E. What does the secret key do? Explain your answer. F. What is ciphertext? G. What is the decryption al gorithm? Explain your answer.
Q# Question An swer A. What is the main goal of using symmetric encrypti on model? B. What are the two requirements for the secure use of symmetric encrypti on? 1- 2- C. What is plaintest? D. What does encryption algorithm mean? Explain your answer. E. What does the secret key do? Explain your answer. F. What is ciphertext? G. What is the decryption al gorithm? Explain your answer.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:5. As shown in figure 1, use this symmetric encryption model to complete the foll owing table.
Secret key shared by
sender and recipient
Secret key shared by
sender and recipient
Transmitted
ciphertext
Y = E[K, X)
X - D[K, Y)
Plaintext
Plaintext
Encryption algorithm
(e.g., DES)
Decryption algorithm
(reverse of encryption
algorithm)
input
output
Fig 1: Symmetric Encryption Model
Q#
Question
Answer
А.
What is the main goal of using
symmetric encrypti on model?
What are the two requirements for the
secure use of symmetric encrypti on?
В.
1.
2-
С.
What is plaintext?
What does encryption algorithm
mean? Explain your answer.
E
What does the secret key do? Explain
your answer.
F
What is ciphertext?
What is the decryption al gorithm?
Explain your answer.
G.
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