EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Question
Chapter 8, Problem R15RQ
Program Plan Intro
Digital Signature:
Public-key primitives of message authentication are called digital signatures.
Given Information:
Alice has a message ready that can be sent to the people who require it. Thousands of people want to obtain Alice's message, but everyone wants to be sure of the integrity of the message
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Students have asked these similar questions
Assume Alice has a letter prepared to deliver to anyone who requests it. Thousands of people want to get their hands on Alice's letter, but they all want to be sure it's genuine.
Do you think a MAC-based or a digital-signature-based integrity scheme is better in this case? What is the reason for this?
Give an example of each type of authentication and the risks that come with it. Then give an answer.Bob compares a password that has been hashed to a database that also has hashes.Bob looks at what's in a database and compares it to a double-hashed password.
For practical encryption that involves secret message transmission from Alice to Bob, why is the message encrypted with the shared symmetric key rather than Bob's public key?
What is the significance of using Bob's public key to encrypt the shared symmetric key?
Chapter 8 Solutions
EBK COMPUTER NETWORKING
Ch. 8 - Prob. R1RQCh. 8 - Prob. R2RQCh. 8 - Prob. R3RQCh. 8 - Prob. R4RQCh. 8 - Prob. R5RQCh. 8 - Prob. R6RQCh. 8 - Prob. R7RQCh. 8 - Prob. R8RQCh. 8 - Prob. R9RQCh. 8 - Prob. R10RQ
Ch. 8 - Prob. R11RQCh. 8 - Prob. R12RQCh. 8 - Prob. R13RQCh. 8 - Prob. R14RQCh. 8 - Prob. R15RQCh. 8 - Prob. R16RQCh. 8 - Prob. R17RQCh. 8 - Prob. R18RQCh. 8 - Prob. R19RQCh. 8 - Prob. R20RQCh. 8 - Prob. R21RQCh. 8 - Prob. R22RQCh. 8 - Prob. R23RQCh. 8 - Prob. R24RQCh. 8 - Prob. R25RQCh. 8 - Prob. R26RQCh. 8 - Prob. R27RQCh. 8 - Prob. R28RQCh. 8 - Prob. R29RQCh. 8 - Prob. R30RQCh. 8 - Prob. R31RQCh. 8 - Prob. R32RQCh. 8 - Prob. R33RQCh. 8 - Prob. P1PCh. 8 - Prob. P2PCh. 8 - Prob. P3PCh. 8 - Prob. P4PCh. 8 - Prob. P5PCh. 8 - Prob. P6PCh. 8 - Prob. P8PCh. 8 - Prob. P12PCh. 8 - Prob. P13PCh. 8 - Prob. P14PCh. 8 - Prob. P18PCh. 8 - Prob. P20PCh. 8 - Prob. P21PCh. 8 - Prob. P22PCh. 8 - Prob. P23P
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Similar questions
- Just what do you mean by "the objectives of authentication"? Think about the good and bad features of each system and choose one based on that.arrow_forwardTo what extent can we make progress with the assistance of authentication? In this section, we will examine the various authentication methods available, discuss their advantages and disadvantages, and contrast them with one another.arrow_forwardExplain the differences between symmetric and asymmetric cyphers and how they are used in cryptography. Since the RSA public key is much bigger than a symmetric key, what is the accepted minimum size for it? Why? Can RSA's superior security be compared to that of symmetric key cyphers?arrow_forward
- What does the phrase "the aims of authentication" mean to you and how do you interpret it? Examine each of the many authentication methods from both a good and a negative perspective, then compare and contrast the two.arrow_forwardIs there anything in particular that authentication is designed to accomplish? Investigate the advantages and disadvantages of various forms of authentication and compare them.arrow_forwardIs there anything that we are able to do with authentication's assistance?As you can see, selecting an authentication technique involves making a decision based on a variety of different considerations.arrow_forward
- How does homomorphic encryption work, and in what scenarios is it particularly useful?arrow_forwardFor authentication based on something you are, both false negatives and false positives are problems. Discuss whether one of these is more important than the other by citing situations in which one is more important and justifying that those kinds of situations are more prevalent.arrow_forward
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