Assignment Problem: SSL/TLS VPN Technologies
The purpose of this assignment is to review existing literatures on important VPN technologies and issues and write a report. The report must be specific to the given topics, use appropriate examples and detail of the topic given to develop a review paper. In preparing the assignment, students should acquire not only the knowledge of current technical aspects of VPN but also research, data collection, analysis and writing skills.
Learning Outcomes:
1. Explain the significance of VPN for contemporary organisations
2. Discuss the role of VPN to support the security of businesses
3. Demonstrate the use of VN client
Assignment Questions:
Objective: Your tasks are to analyze and to write a report about the processes and the security technologies being used when you access any website (which uses HTTPS) online via a web browser, as well as having the ability to remotely accessing your company network online securely. It is a well- known fact that the Internet is a public network and every single message you exchange with the server can potentially be intercepted by attackers. You need to analyse in detail to address the technologies and techniques that can be used to prevent attackers from modifying the communication between you and web server in addition to keeping your passwords and other details safe.
A. Literature Review:
Research about the different methods for securing the transfer of information across internet service provider. This should include the following:
Part 1: You need to explain the significance of VPN for contemporary organisations. This should cover the different encryption protocols for VPN implementation, including a comparison of SSL/VPN and IPSEC/VPN.
Part 2: IPsec uses the Internet Key Exchange (IKE) protocol to negotiate and establish secured site- to-site or remote-access VPN tunnels. Investigate how Cisco Adaptive Security Appliances (ASA 5500 Series) would support IPsec and IKE.
Part 3: Discuss the role of VPN in supporting the security of businesses, and describe the advantages of SSL/VPN over IPSEC/VPN
Part 4: The rapid proliferation of mobile devices increases on a daily basis, investigate how Cisco AnyConnect is designed to secure the connections from these mobile devices.
Part 5: Search for free VPN client solution and explain the process of setup by comparing at least three different solutions
You are also required to address the following topics and task in details:
B. VPN, Authentication and Access Control
You need to visit a particular web site and discuss the following points:
Question 1: Analyze and write report on how the browser ensures that it is communicating to the right server. Please visit a website and add screenshots also highlighting the related part. Explain how SSL and TLS provide authentication?
Question 2: Describe how digital signatures work and what role pays in the authentication process, add the relevant screenshot from your web browser showing the details of signature. What happens during certificate verification?
Question 3: Analyze and comment on how the server makes sure that it is communicating to the right client, discuss several methods; e.g. if you are using MIT Moodle, how the server verifies that it's actually YOU?
C. Confidentiality and Integrity
Question 1: Analyze and write a report on how the confidentiality and integrity is achieved in SSL communication, and how server & client agree on one cipher suit?
Question 2: Explain what is the role of symmetric encryption and hash algorithms in SSL communication. Add/take screenshots from your browser showing symmetric encryption and hash details.
Question 3: Describe the VPN client software options
D. Anti-Replay
Question 1: Analyze and write a report on how the anti-replay attacks are mitigated in SSL communication.
Question 2: How to protect your organization against SSL attacks?
E. VPN client installation
Question 1: Download a free VPN (eg. Hide me) and install in on virtual box or on your Laptop.
Question 2: Check and note down your terminal IP address before enabling the VPN. Use traceroute yahoo.com and note down the result including the gateways. (take snapshot of the result)
Question 3: Enable the VPN, check and note down the terminal IP address. Use traceroute yahoo.com and note down the result including the gateways. (take snapshot of the result)
Question 4: Compare the result of steps 2 and 3 and explain the impact of using VPN.
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