The Green and Golden Gardener’s club in Milton Keynes has a website for club members. The club sends out news items and seasonal hints and members are allowed to contribute. Members receive a discount from subscription fees if they contribute ‘star’ articles. Members sign their articles using their own private key. Alicia Keyton is a new member. Explain how one or more of authentication, hashing and/or types of encryption are used to ensure each of the following: Only club members can log on to the website using a user name and password. The club website editor can verify that an article on how to grow sweet peas is from Alicia Keyton (and not a hacker, Sam).

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Q: Why is authentication beneficial? Which authentication methods are good and bad?

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Q: Why is hashing a password better than encrypting one that has been stored in a file?

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Q: Because hashing passwords is more safe than encrypting them.

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Q: Why is hashing passwords preferable than encryption when keeping them in a secure location?

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Q: In the case of public key encryption, if you use both the signature and encryption features, which…

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Q: Differentiate between public-key and private-key encryption. In your response, give examples of when…

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Q: What are your authentication goals? Compare authentication methods.

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Q: Describe the operation of an authentication system using a challenge–response format. It is not…

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Q: Differentiate between public-key and private-key encryption. In your answer, provide examples of…

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Q: Each authentication method's hazard and solution:

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Q: Why is the process of hashing passwords more secure than encrypting them?

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Q: Explain challenge-response authentication and its operation. This method's advantages over…

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Q: When using public key cryptography, what is the minimal number of keys required?

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Q: Which authentication methods are secure?

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Q: Why is it necessary to have authentication? Which authentication methods have the most benefits and…

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