Answer:
Answer has been attached to this response as a source code file saved as "MyTest.java". Please download the file to check the answer.
Explanation:
Explanation has been added to the answer in the form of comments to the code. Please read the comments carefully to get a clear understanding of the code.
Answer:
<u>Create a small, collapsible navigation bar at the top of the home page so users can see new topics without scrolling</u>
Explanation:
By so doing the user experience on the website would be improved because, instead of struggling through several pages to read through discussion threads, they can simply click on the navigation bar and pick a discussion topic that interests them.
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Answer:
No. This is not more secure.
Explanation:
this is not more secure than having all of Carol, bob and Alice having the same key.
alice would be able to know Carol's key for her to be able to verify the answer Carol gave to a challenge by her. she would also have to know bob's key to do the same.
any of these 3 would have to know someone else's secret key to verify answers to any challenge.
the challenge is to know the secret keys if the other two and if done, decryption can easily be done and they can impersonate.