For message integrity, which is better: MAC-algorithm or Digital Signature? Explain.
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For message integrity, which is better: MAC-
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- Which is better between MAC-algorithm and Digital Signature for message integrity.Explain.Suppose Alice has a message that she is ready to send to anyone who asks. Thousands of people want to obtain Alice's message, but each wants to be sure of the integrity of the message. In this context, do you think a MAC-based or a digital-signature-based integrity scheme more suitable? Why?Please explain what is: a. Encryption, and how is it different from b. Message Integrity, and how it different from c. Authentication.
- What is the difference between Non-Repudiation and Anonymity Protocols? Explain the Non-Repudiation Protocol's Goals and the Zhou-Gollman Non-Repudiation Protocol.a. What properties should a digital signature have? b. In what order should the signature function and the confidentiality function be applied to a message, and why? c. What happens if a K value used in creating a DSA signature is compromised? d. What is the difference between transport mode and tunnel mode? e. What is a replay attack?Describe the relevance of "perfect forward secrecy" in modern encryption protocols.
- What exactly do you mean when you say "network security"? describe the functioning of the data encryption standard algorithm in further detailWhat is avalanche effect? How do you achieve avalanche effect in modern block ciphers? Explain your answer.Is it feasible to use message secrecy and integrity security to protect messages? Exactly the same message? What makes you believe that?
- Is it possible to apply message secrecy and message integrity security to the same message? Why do you think it is?What exactly do you mean when you say "network security"? Describe how the data encryption standard algorithm works.When you refer to "network security," could you perhaps elaborate on exactly what you mean by that term? the workings of the fundamental mechanism for encrypting data should be explained in more detail here.