University : James Cook University UniLearnO is not sponsored or endorsed by this college or university.
Subject Code : CP2414
Assignment Task :

Introduction: 

This assignment has been divided into four (4) parts. You are to prepare a report for the CEO of a mattress in a box company with regards to: 

1. User authentication 

2. Cloud Computing and blockchain for handling the Company's data 

3. Network diagram 

4. Citation and Referencing 

 

Scenario: 

Your client, TheSleepyheads, was satisfied with the advice you provided them with last time. They  have decided to hire you again. Having accrued a vast amount of valuable data, and with intent to  licence the company’s data to others, the CEO, Ms Jessica Raye, has begun to take security more  seriously. 

 

About the company: 

TheSleepyheads is a growing mattress in a box company with, now, 3 branches. Some changes  have been made to the company networks to accommodate this growth. The Perth branch is still  the main branch for the company; however, there are smaller branches in Melbourne, and  Christchurch. Each branch now has 5 departments with approximately 50 employees working in  each department. The Perth branch now has a mail server, 2 file servers, 2 web servers, a DNS  server, and 4 database servers. The smaller branches each now have a mail server, 2 database  servers, and two file servers. 

To the best of Jessica’s knowledge, all of the company data, including all employees’ usernames  and passwords for all branches, are being stored in plaintext form. Jessica is concerned that  employees’ credentials may be accessed from someone outside of the company and be used to  obtain company data. 

 

Part I Kerberos and User Authentication 

As the company grows, Jessica fears legitimate users may be impersonated to access company  network resources. You, as a consultant, know that Kerberos would be the answer to Jessica’s  requirement regarding user authentication.  

Your task for this part is to explain how Kerberos cryptography can be used for the user  authentication purpose. The following aspects may be explained: 

Why Kerberos should be chosen for this purpose? 

• Does Kerberos use symmetric or asymmetric cryptography? Explain. 

• How does Kerberos authenticate each client? You may discuss Kerberos Ticket-Granting  Server (TGS) and Ticket Granting Ticket (TGT). 

• How does Kerberos tackle the problem of replay attacks?  

  

Part II Cloud Computing and Blockchain for Handling the Company's Data 

As you were already informed, Jessica wants to keep her company’s valuable data secure. She told  you that she has heard about Cloud Computing and blockchain, as a result, she wants to know if  they could be used to keep the company’s data secure. For this part, you are required to

• Explain the possibility of employing Cloud Computing (CC) for the company to protect  valuable data.  

• You have to recommend a kind/s of CC service/s to be used for the company’s data as  well as how data may be sent to an authorised partner securely using the Cloud. You will  have to justify why you recommend such CC service/s over the other services.  

• Explain blockchain in detail to Jessica. Furthermore, list and describe any drawbacks and  advantages of employing blockchain in general. 

• You are to advise the possibility of using Blockchain to keep the company’s data secure  and whether blockchain is suitable for this purpose. Explain any drawbacks and  advantages of employing blockchain within the company.  

• You will have to explicitly make a recommendation and justification on employing  blockchain for storing the company’s data. 

 

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  • Uploaded By : Grace
  • Posted on : January 20th, 2018

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