Principles of Information Security (MindTap Course List)
6th Edition
ISBN: 9781337102063
Author: Michael E. Whitman, Herbert J. Mattord
Publisher: Cengage Learning
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Chapter 8, Problem 2CEDQ
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Tools for key recovery other than PKI-based system:
“Yes”, there are a lot of tools available other than PKI and some online tools to recover the password or passphrase...
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Are there any tools that someone like Peter can use safely, other than key recovery, to avoid losing his or her passphrase?
ProblemFor the purposes of collecting entropy or obtaining cryptographically robust pseudo-random data, you should use a library-level access to EGADS. On a system like Microsoft Windows, for instance, where there isn't a built-in API for obtaining it, you might need entropy.
Let's pretend a Vigen'ere cipher was used to encrypt a long string of text, and that the encrypted text included many instances of the same string. Describe the methods you'll use to calculate the length of the key based on this information.
Chapter 8 Solutions
Principles of Information Security (MindTap Course List)
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- Consider a plausible situation in which the handling of logins is concerned. Create a list of all the many methods you've been able to demonstrate your identification up to this point. Do you believe that passwords will soon be rendered unnecessary?arrow_forwardIs authentication useful in any way that might help us reach our goals? Here, we'll take a look at the strengths and weaknesses of a variety of methods and see how they stack up against one authentication another.arrow_forwardIs it feasible to produce secret keys for use in cryptographic protocols on a desktop computer using software in such a safe way that they can be utilized, and is this something that is even achievable?arrow_forward
- Give an illustration of a hypothetical circumstance involving the management of user logins, for example. Create a list of all of the various kinds of authentication that you've come across throughout your travels. Do you think that passwords will become outdated in the near future?arrow_forwardIt is not the same thing as having an encrypted password database on your computer if you have a file where you keep hashed passwords, but what exactly is the difference between the two?arrow_forwardIt is often claimed that passwords do not get saved as plaintext anywhere in systems, and even the system administrator does not know your password. Given what you learned about hash functions. Explain how such a claim is possible. In other words, how do systems perform authentication without having to store passwords in a format that can be read by the system administrators. Authentication is primarily the process of verifying that provided password is correct. Design a simple authentication system and implement the following two methods: def signup(username, password '''store the user credential so that the system knows how to authenticate the user in the future (when login() gets called).'''def login(username, password): '''returns True, if the provided username and password are correct'''arrow_forward
- There must be a description of a fictitious scenario for the handling of logins. There are a few different approaches to authentication. Is there a decline in the usage of passwords?arrow_forwardIt is often claimed that passwords do not get saved as plaintext anywhere in systems, and even the system administrator does not know your password. Given what you learned about hash functions. Explain how such a claim is possible. In other words, how do systems perform authentication without having to store passwords in a format that can be read by the system administrators. Authentication is primarly the process of verifying that provided password is correct. Design a simple authentication system and implement the following two methods: def signup (username, password): '''store the user credential so that the system knows how to authenticate the user in the future (when login () gets called).' def login (username, password): "''returns True, if the provided username and password are correct'''arrow_forwardTo what end does the fingerprinting algorithm want to get access? Give me the rundown on how this thing works. Actions like preventing access, erasing data, or allowing material to be used with permission are required to achieve the desired outcome.arrow_forward
- Computer Science Based on DES, find the ciphertext if the shared key is "SECURITY" and the output of round 15 is "IT? 7b/".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_forwardTell us what "salt" implies in the context of cryptanalysis. To make password cracking more difficult, you need look at how it is utilized.arrow_forward
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