Review the following questions from Network security: Private communication in a public world and provide your responses in a Word document. In answering each prompt, be sure to defend your answers and explain how you have arrived at your solution.
Random J. Protocol-Designer has been told to design a scheme to prevent messages from being modified by an intruder. Random J. decides to append to each message a hash of that message. Why does this not solve the problem?
Hint: We know of a protocol that uses this technique in an attempt to gain security.
Suppose Alice, Bob, and Carol want to use secret key technology to authenticate each other. If they all used the same secret key, K, then Bob could impersonate Carol to Alice (actually any of the three could impersonate the other to the third). Suppose instead that each had their own secret key; so Alice uses KA, Bob uses KB, and Carol uses KC. This means that each one, to prove his or her identity, responds to a challenge with a function of his or her secret key. Is this more secure than having them all use the same secret key?
Hint: What does Alice need to know in order to verify Carol’s answer to Alice’s challenge?
Assume a cryptographic algorithm in which the performance for the good guys (the ones that know the key) grows linearly with the length of the key and for which the only way to break it is a brute-force attack of trying all possible keys. Then, suppose the performance for the good guys is adequate (e.g., it can encrypt and decrypt as fast as the bits can be transmitted over the wire) at a certain size key. Finally, suppose advances in computer technology make computers twice as fast. Given that both parties— the good guys and the bad guys— get faster computers, does this advancement in computer speeds work to the advantage of the good guys? The bad guys? Or does it not make any difference?
Kaufman, C., Perlman, R., & Speciner, M. (2011). Network security: Private communication in a public world. Upper Saddle River, NJ: Prentice Hall PTR. (note: this textbook is a reference for the assignment andnota required resource for learners)
In each of your responses to the above scenarios, please ensure that you provide a brief explanation of why you chose to take your mentioned actions.
In this lab you’ll set up your own local environment you’ll use in later labs to set up Ethereum and Hyperledger Fabric development and deployment environments. When you finish this lab, you’ll have the infrastructure in place to build many different types of virtual environments on your own computer.
Topic 7 Discussion & Attendance Activity: What to Expect in an IT Career
INSTRUCTIONS:
Respond to the below topic in a minimum of 50 words. (5 points)
Reply to at least 1 of your classmates. Be constructive and professional in your responses. (5 points)
Your participation in this online activity will count toward this week attendance.
What to Expect in an IT Career
Working in the technology field, please keep in mind that you work in a support capacity. Do your best to be helpful, resolved the issue the first time, and deliver as promise. One of the most important ways to achieve customer satisfaction is to do your best by being prepared, both technically and personally.
View the below YouTube video.
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In the role of technical support to users, what do you think is your strongest social skill that would help you succeed in this role? What is likely to be your greatest interpersonal weakness that might present a challenge to you in this role? What is one change you might consider making that will help you to improve on this weakness?
Topic 9 Discussion & Attendance Activity: Microsoft Word
INSTRUCTIONS:
Respond to the below topic in a minimum of 50 words. (5 points)
Reply to at least 1 of your classmates. Be constructive and professional in your responses. (5 points)
Your participation in this online activity will count toward this week attendance.
Microsoft Word – Tips and Tricks
Many of you may have some familiarity with word processing software, and even with Word. People who use word processing software can be casual users who use commands as they find them, or power users who understand the power of the program and who learn more about each command and how it can be used.
View the below YouTube video that share 25 Word 2016 tips and tricks.
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Did you discover any new tips using Microsoft Word from the above video?
Topic 10 Discussion & Attendance Activity: Microsoft Excel
INSTRUCTIONS:
Respond to the below topic in a minimum of 50 words. (5 points)
Reply to at least 1 of your classmates. Be constructive and professional in your responses. (5 points)
Your participation in this online activity will count toward this week attendance.
Microsoft Excel – Tips and Tricks
Excel has more to it that meets the eye. At first glance it looks like a program to make charts, graphs, and other types of charts. One of the best features is its ability to use math formulas. This feature is helpful if you’re making any type of finance spreadsheet. With the right formulas, you can have Excel automatically add, subtract, multiply, divide, find the range, or just the sub total of any data entered in the cell(s). These formulas automatically update, so you can add data to your spreadsheet and know that it’s going to give you the right total(s) without you having to format it every time.
View the below YouTube video that share 25 Word 2016 tips and tricks.
Play Video
How many of you have already used Excel? What did you use it for? What features did you like? What did you dislike about it?
Topic 11 Discussion & Attendance Activity: Microsoft PowerPoint
NSTRUCTIONS:
Respond to the below topic in a minimum of 50 words. (5 points)
Reply to at least 1 of your classmates. Be constructive and professional in your responses. (5 points)
Your participation in this online activity will count toward this week attendance.
Microsoft PowerPoint
PowerPoint is a great tool that can help communicate ideas effectively. With PowerPoint, you can create notes for the speaker and handouts for the audience, as well as presentations.
View the below YouTube video on PowerPoint Do’s and Don’ts
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Discuss the general functions, benefits, business value, and practical uses of MicrosoftPowerPoint.
Topic 12 Discussion & Activity: Identity Theft
INSTRUCTIONS:
Respond to the below topic in a minimum of 50 words. (5 points)
Reply to at least 1 of your classmates. Be constructive and professional in your responses. (5 points)
Your participation in this online activity will count toward this week attendance.
Protecting Yourself from Identity Theft
The fastest growing crime in the United States is identity theft. More than nine million people fall victim each year, with the unauthorized use of an existing credit card accounting for much of the problem. The National Crime Victimization Survey reports that household identity theft losses amount to more than $13 billion each year, and that figure does not account for the aggravation and time required to repair the accounts.
Watch the below YouTube video
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Do you know anyone who has been a victim of identity theft? What steps will you take to protect your identity?
SQL is a pervasive querying language. While there is one primary SQL dialect that all SQL RDBMS implementations must support, and that’s ANSI SQL, each database platform comes out with its own context. Each of these dialects has its own DDL (Data Definition Language). DML (Data Manipulation Language). and DQL (Data Query Language). Other than for marketing purposes (to sell the product as unique), what is the value of creating a new variation of a SQL dialect.
Provide an example of one SQL dialect as part of your write-up.
Instructions:
This is a required assignment, worth 15 points. The assignment must be submitted by the due date. Late assignment are not allowed.
You are required to submit a minimum of two postings. Points will be deducted for not fulfilling this minimum requirement.
Apply and use the basic citation styles of APA is required. Points are deducted per the rubric for this behavior.
Do not claim credit for the words, ideas, and concepts of others. Use in-text citation and list the reference of your supporting source following APA’s style and formatting. Points are deducted per the rubric for this behavior.
Do not copy and paste information or concepts from the Internet and claim that is your work. It will be considered Plagiarism and you will receive zero for your work. A second offense results in a zero for the course. A third is termination from the university.
Please read “R3: Putting the ‘Fin’ Back into Fintech” case study (see HBS Coursepack) and answer the following questions with substantive answers in a cohesive essay. Your paper should be at least 3 pages in length. Use proper grammar, spelling, citations, etc.
1.How does Fintech compare to regular banking?
2. Discuss R3 and its distributed ledger technology mission.
3. What are some of the applications of cords and strategies of growing and expanding?
4. What are some of the emerging markets that Fintech has impacted?
Compose your essay in APA format, including the introduction and conclusion, and in-text citations for all sources used. In addition to your 3 page (minimum) essay, you must include an APA-style title page and reference page. Click the assignment link to compare your work to the rubric before submitting it. Click the same link to submit your assignment.
I did this project but I got some wrong steps. I`m uploading the instructions and what I did too.
This is my teacher comment: Good job! Some points were deducted for formatting errors (margins were not customized, rubric does not all fit onto one page) and multiple spelling/typing errors. Otherwise, nice work!
