. a 2,000-bit message is used to generate a 256-bit hash. one the

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1. A 2,000-bit message is used to generate a 256-bit hash. One the average, how many other messages could be expected to generate the same hash value? What does this tell us about the length of a hash as compared to the length of the message?

2. Using the English alphabet (i.e., mod 26 arithmetic) let plaintext = {p1, p2,… , pn} and corresponding ciphertext = {c1, c2,… , cn}. Suppose the encryption function is ci = pi + 5 (mod 26). If you receive the ciphertext message RNQJDHDWZX, decrypt to recover the plaintext. What is the decryption function, and the recovered plaintext? What type of cipher is this? What are some weaknesses of this cipher?

3. Substantiate or refute the following statement: The cryptographic basis of the Enigma machine is the use of a trapdoor function.

5. A particular cipher is implemented by combining the ASCII representation of plaintext characters with pseudorandom bytes (eight-bit binary strings of 1s and 0s) using the XOR function. In the process of encrypting a message, a character in the plaintext, a capital R, is XORed with the pseudorandom byte 10010101.
a. What is the ciphertext (in binary form) generated by the encryption of the character R? (Please show your work.)
b. How is the plaintext for this encrypted R recovered? (Please show your work.)

6. The following ciphertext is a monoalphabetic ciper:

ROXBOOG TOSOXUXUVG WGP NVTMOXXUGM, UX UE W HWTCOI XLWX W GOB XLVDMLX OCOT EXTDMMIOE UGXV OAUEXOGQO. HWEVG QVVIOZ
Decrypt this message, and briefly describe your cryptanalysis methodology. In particular, list features of the ciphertext that hindered or helped your decryption process.

7. An organization has 2000 members. It is desired that each member of the organization be able to communicate securely with any other member, without any other member being able to decrypt their messages. How many unique keys are required if:
a. The organization uses a symmetric cipher.
b. The organization uses an asymmetric cipher.

8. The following questions are worth 2 points each:
a. Bob picked N=77 for use in a RSA-encrypted message. Since N is part of the public key, Alice was able to crack Bob’s message by determining the values of p and q that Bob used. What are the values of p and q did she determined?
b. Is 89,201,768 a prime number? Why or why not?

10. Modular arithmetic is used in public key ciphers. What is the value of X for each of the following:

a. X = 1,233 mod 16
b. X = 6 mod 50
c. X = 60 mod 5
d. X = 50 mod 6

12. Using RSA, let p = 19, q = 13 and e = 5. Which of these is the complete private key:
a. (169, 247)
b. (173, 247)
c. (169, 216)
d. (173, 216)
e. None of the above.
(For full credit, please show your reasoning.)

13. Encrypt-It-Rite, a vendor of encryption software, sells a symmetric cipher that uses a 56-bit key. The company decides to conduct a “challenge” to crack an encrypted message using a brute-force approach. The average time to crack the message is found to be 12 hrs. How many more bits would they need to add to the key to increase the average cracking time to 3072 hrs?

14. Roberta, the daughter of Bob and Alice, is a summer intern at Encrypt-It-Rite, Inc. For her summer project, Roberta would like to implement a stream cipher using public key encryption. Is this a viable idea? Why, or why not.

15. You are Alice. You have agreed with your friend Bob that you will use the Diffie-Hellman public-key algorithm to exchange secret keys. You and Bob have agreed to use the public base g = 19 and public modulus p = 29. You have secretly picked the value SA = 23.You begin the session by sending Bob your calculated value of TA. Bob responds by sending you the value TB = 17. What is the value of your shared secret key?

16. Bob is concerned about the possibility of having his 100k byte file modified without his knowledge, so he calculates a 128 bit hash. Alice, unbeknownst to Bob, changes a single character in Bob’s file. Assuming that Bob used a strong hash function, what would the hash value of the modified file look like, as compared with the original hash value?

17. Suppose that Alice and Bob need to communicate, and have decided to use asymmetric (public key) encryption. Using only asymmetric encryption algorithms, describe a process that would allow Alice to send a message that can only be read by Bob, and that Bob could be confident was sent by Alice. You should include any steps taken by Bob to read the message, or to determine whether Alice actually sent the message.

18. Bob believes that he has come up with a nifty hash function. He assigns a numeric value VChar to each letter in the alphabet equal to the letter’s position in the alphabet, i.e., VA = 1, VB = 2, …, VZ = 26. For a message, he calculates the hash value H = (VChar 1 x VChar 2 x VChar 3 …x VChar N) mod(26). Bob uses this function to send a one-word message, PLANE, to his banker Bill, along with his calculated hash value for the message. Alice is able to intercept the message, and generates an alternative message that has a hash value that collides with Bob’s original hash value. Show a message that Alice may have spoofed, and demonstrate that its hash value collides with Bob’s original hash.

19. Do symmetric and asymmetric ciphers protect the integrity of the messages that they encrypt? If not, how could that service be provided?

Compare and contrast symmetric and asymmetric encryption algorithms. Your response should include a brief overview of the cryptographic basis for each type of algorithm, and a comparison of their relative strengths and vulnerabilities. Describe how a hacker might go about cracking a message encrypted with each type of algorithm. Suggest a specific application for each type of algorithm where the advantages clearly outweigh the disadvantages.

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July 1, 2023

Write a scholarly research report on a topic related to Advanced Database Systems (see Appropriate Topics). Please see Important Notes and Document Details for detailed specifications.

Appropriate Topics:

The Research Report, select one of the following research areas:

1. A Complete Comparative between MongoDB and Oracle 12c

2. A Complete Comparative between IBM DB2 and CA IDMS

3. A Complete Comparative between IBM DB2 and IBM DB2

4. A Complete Comparative between Oracle 12c and CA IDMS

5. A Complete Comparative between Oracle 12c and IBM DB2

6. A Comparative Analysis of Triggers used in Oracle 12c versus Triggers used IBM DB2

7. A Comparative Analysis of Stored Procedures used in Oracle 12c versus Stored Procedures used in IBM DB2

8. A Comparative Analysis of Transaction Processing used in Oracle 12c versus Transaction Processing used IBM DB2

9. A study of DB Transaction Processing / Coordination used in a Cloud environment

10. Common and dissimilar vulnerabilities found in both Oracle 12c and IDMS

11. Managing Transaction Processing using MongoDB

12. The Internet of Things (sensor & actuator data) used in a distributed DB cloud environment

Important Student Notes:

· Each student submission should be checked for plagiarism. Students should be warned that Turnitin has a very good historical memory and is capable of accessing reports from both internal and external resources (i.e. Universities, Governments, etc.) including those originally written in non-English written languages. Plagiarism will result in a grade of zero (non-negotiable) for the assignment and may results in other university actions. The department chairperson will be notified of the violation. Additional Campbellsville University penalties may be applicable. Please see class syllabus for additional details.

· Only one submission attempt is permitted – AS THE STUDENT TO BE SURE BEFORE DEPRESSING ENTER.

· Acceptable file formats for submissions include Microsoft Word (doc, docx) or Adobe Acrobat (PDF). No other formats are acceptable.

· The research paper must be at least 3,500 words supported by evidence (citations from peer-reviewed sources).

· A minimum of four (4) peer-reviewed journal citations are required.

· Formatting should be double-spaced, one-inch boarders, no extra space for headings, no extra white space, no more than two levels of heading, page numbers, front and back matter).

· Extra white space use to enhance page count will negatively affect student grade.

· Chapter 1 illustrates the document details of the research report and constitutes Background/Introduction, Problem Statement(s), Goal(s), Research Question(s), Relevance and Significance, Barriers and Issues related to topic chosen. Chapter 2 should consist of student paraphrasing the cited research material (i.e. what happened in case study x). Chapter 3 should be the reasoning for doing a basic compare/contrast or advantages/disadvantage of what was stated in Chapter 2 (do not state because the professor said so). Chapter 4 is a complete analysis, synthesis, and evaluation of what was stated in chapter 2. In effect, chapter 3 is a statement of what will be done and chapter 4 is what was done and what the findings were. Again, thus far the writing is objective and must not contain student opinion. Chapter 5 states results, conclusion, and future work recommendations. Here is where student opinion (or any researcher) can state their respective opinion as the student has now “done the work” and are justified in stating results.

· Graduate student are expected to be proficient in the use of the English language. Errors in grammar, spelling, or syntax will affect student grade. The Professor, will not provide remedial help for writing problems. If the student is unable to write clearly and correctly, the student should be urged to contact the program office for sources of remedial help.

· IMPORTANT - please refer to the following url for additional help on writing skills necessary at the graduate level (https://owl.purdue.edu/site_map.html).

· Final Submission - the final report is due no later than the due date assigned. A total of at least 15 full pages is required (no extra whitespace, does not include appendices). (800 points). Only Microsoft Word or Adobe PDF submission is acceptable.

· The research paper must only include materials derived solely from peer reviewed journals or peer reviewed conference proceedings. Newspapers, websites (URLs), magazines, technical journals, hearsay, personal opinions, and white papers are NOT acceptable citations. Please access the CU Library at http://campbellsville.libguides.com/?b=g&d=a for appropriate materials.

· APA formatted citations are required for the final submission. IMPORTANT - please refer to the following url for help with APA: https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_style_introduction.html. Please reach out to our librarians for additional citation management and APA help.

· All images, tables, figures are to be included in the appendices and IS NOT included in the 15 page requirement. This means appendices are not included in the 15 page requirement.

· Long quotations (i.e. paragraphs) are NOT permitted. Only one quoted short sentence (less than 14 words) is permitted per page.

· Footnotes are NOT permitted.

Document Details

This area provides additional details about the content of each of the needed Research Report Chapters (5). For those instructing in Hybrid format, the instructor may want to consider having the instantiated teams work on: 1) an outline of the final research report and 2) a preliminary research report that includes Chapters 1 and 2. For those instructing in Online or F2F formats the instructor may want to consider using the Hybrid format (teams) or single student submission format. The final submission should include DETAILS of each of following:

1) Chapter 1 – Introduction

2) Chapter 2 – Literature Review

3) Chapter 3 – Methodology Specifics (comparative analysis)

4) Chapter 4 – Findings and Results

5) Chapter 5 – Conclusion and Future Recommendations

6) References - APA

7) Appendices

Chapter 1 Introduction

1 Background/Introduction

In this section, present enough information about the proposed work such that the reader understands the general context or setting. It is also helpful to include a summary of how the rest of this document is organized.

1.1 Problem Statement

In this section, present a concise statement of a research-worthy problem addressed (i.e., why the work should be undertaken – don’t say required for the class). Follow the statement of the problem with a well-supported discussion of its scope and nature. The discussion of the problem should include: what the problem is, why it is a problem, how the problem evolved or developed, and the issues and events leading to the problem.

1.2 Goal

Next, include a concise definition of the goal of the work (i.e., what the work will accomplish). Aim to define a goal that is measurable.

1.3 Research Questions

Research questions are developed to help guide the authors through the literature for a given problem area. What were the open-ended questions asked and why did the student find (or not find) them adequate.

1.4 Relevance and Significance

The student should consider the following questions as they read through an article stating how the author(s) supported, or left unsupported the evidence, relevance, and significance of their research literature:

Why is there a problem? What groups or individuals are affected?

How far-ranging is the problem and how great is its impact? What’s the benefit of solving the problem?

What has been tried without success to correct the situation? Why weren’t those attempts successful? What are the consequences of not solving the problem?

How does the goal of the study address the research problem and how will the proposed study offer promise as a resolution to the problem?

How will the research add to the knowledge base?

What is the potential for generalization of the results?

What is the potential for original work?

1.5 Barriers and Issues

In these paragraphs, identify how the problem is inherently difficult to solve. How did the solution the author(s) propose address the difficulties?

2 Chapter 2 Literature Review

In this section, it is important to clearly identify the major areas on which the student will need to focus the student research in order to build a solid foundation for the study in the existing body of knowledge. The literature review is the presentation of quality literature in a particular field that serves as the foundation and justification for the research problem, research questions or hypothesis, and methodology. The student will develop a more comprehensive review of the literature as part of the research.

3 Chapter 3 Approach/Methodology

This chapter includes a summary of how the student is going to proceed with the evaluation of the problem statement and associated research question(s). Given the short time of this course, a compare / contrast or advantage / disadvantage analysis is recommended

4 Chapter 4: Findings, Analysis, Synthesis

Include an objective description and analysis of the findings, results or outcomes of the research. Limit the use of charts, tables, figures to those that are needed to support the narrative. Most of these illustrations should be included as part of the Appendix.

The following topics are intended to serve as a guide:

4.1 Data analysis

4.2 Findings & Discussion

4.3 Analysis

4.4 Synthesis

4.5Discussion

Chapter 5: Conclusions

5.1 Conclusions - Clearly state the conclusions of the study based on the analysis performed and results achieved. Indicate by the evidence or logical development the extent to which the specified objectives have been accomplished. If the research has been guided by hypotheses, make a statement as to whether the data supported or rejected these hypotheses. Discuss alternative explanations for the findings, if appropriate. Delineate strengths, weaknesses, and limitations of the study.

5.2 Implications - Discuss the impact of the work on the field of study and its contributions to knowledge and professional practice. Discuss implications for future research.

5.3 Recommendations - Present recommendations for future research or for changes in research methods or theoretical concepts. As appropriate, present recommendations for changes in academic practice, professional practice, or organizational procedures, practices, and behavior.

References

Follow the most current version of APA to format the references. However, each reference should be single-spaced with a double space in between each entry.

Formatting Details

Margins

The left-hand margin must be 1inches (4 cm.). Margins at the right, top, and bottom of the page should be 1.0 inch. (See exception for chapter title pages below.) The Research Report text may be left-aligned (leaving a ragged right edge) or may be both left- and right-aligned (justified).

Line Spacing

Double-spacing is required for most of the text in documents submitted during the Research Report process.

Paragraph Spacing

The text of the document is double-spaced. There should be no extra spaces between paragraphs in sections; however, indent the first line of each paragraphs five spaces.

Page Numbering

All pages should have page numbers in Arabic numerals in the upper right-hand corner.

Type Style

The body text, the student should use 12-point Times New Roman. Text for the cover page may be larger but should not exceed 14-point size. Text for the chapter title text should be 14-point size. Be consistent in the use of typefaces throughout the document. Do not use a compressed typeface or any settings on the word processor that would decrease the spacing between letters or words. Sans serif typefaces such as Helvetica or Arial may be used for relatively short blocks of text such as chapter headings and captions but should be avoided in long passages of text as they impede readability.

Title Page

Every document that is submitted must have a title page. The title page includes the exact title of the research report, date of submission, the team name, and the name of each team member.

Chapter Title Heading, Subheadings, and Sub-Subheadings

It is required that submitted Research Report use no more than three levels of headings in the body text. All headings should have only the first letter of each word capitalized except that non-major words shorter than four letters have no capital letters.

Instructions for heading levels follow:

Level 1: Chapter Title Heading

This heading starts two inches from the top of the page, is centered on the page, and is set in 14point type. The first line contains the chapter number (e.g., Chapter 4). The second line is blank. The third line displays the chapter title, is centered on the page, and is set in 14-point type.

Level 2: Subheading

Start the subheading at the left margin of the page, four spaces (i.e., two returns when the document is set for double-spacing) down from the title, set in bold 12-point type. Double-space (one return) to the subheading body text. Indent the first line of the body text five spaces.

Level 3: Sub-Subheading

Start the sub–subheading at the left margin of the page, double-spaced (i.e., one return when the document is set up for double-spacing) from the subheading, set in 12-point italics. Double-space (one return) to the sub-subheading body text. Indent the first line of the body text five spaces.