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INFO2222 Project辅导

INFO2222 Project
1 Security Part Description
Design and implement a secure end to end messaging tool.
Basic exemplary flow:
1. In a page, user A logs in, typing username, pwd
2. If successfully log in, showing friend list, could contain just one; if log in fail, show failure reason.
3. After both A,B log in (in two pages, assuming they are “friends” in the chat), A sends a message
(the personalized testing message will be notified before the deadline) to B securely, showing at B’s
side.
Template. We have provided a website template so that you can run a server and show corresponding
sites with the prepared the html pages. While the control functions are located at the corresponding
Python files. You can just modify and add function in corresponding Python files. You may want extra
package to use advanced libraries.
Examine criteria:
1. Properly store passwords on the server —– 15 points
2. When log in, first check server’s certificate (e.g., you can manually create one using a hardcoded
CA public key in your code) — 15 points
3. Securely transmitting a pwd to server (leveraging secure protocols or design the secure transmission
properly) — 10 points
4. Properly check whether password is correct (at least use the simple method that defends against
offline pre-computation attacks) —– 10 points
5. Securely transmitting the message from A to B, even the server who can forward communication
transcript cannot read the message, or modify the ciphertext (leveraging secure protocols or design
the authenticated secure transmission properly) — 40 points
6. Clarify of the report. — 10 points
There are also 20 points bonus if done well or extra functionalities are added, and for adjustment on
single-member team.
Reporting requirement.
1. explain in one or two sentence how you address each of above items
2. show screenshot as evidence, if you can demonstrate intermediate executions in extra page, would
be even better.
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3. clear identify how group members divide the tasks.
4. no explicit word requirement
Submission deadlines. The milestone report about the security part (and corresponding code) will
be due on Saturday mid-night of W8.
Remark 1 The template and code were just an example, if you prefer to do it in other framework, or
using other language, it is OK. Just to make sure you can demonstrate that you properly implement the
security features listed above.
2 Usability Part Description
Expand the basic web based E2EE (secure messaging) to be a website of support system for undergraduate
School of Computer Science University of Sydney students to share experiences and seek the necessary
help (if needed) for their academic studies. It should also have a knowledge repository where students can
share reading or learning materials that they found useful to understand challenging computing concepts.
You already have an account and messaging service that allows pair-wise communication among
students themselves and to specific academic/administrative staff.
Besides the Login, Register, Messaging (view, send), Regular User role, your website should also have
functionalities like following (to be assessed in last activity)
• Data/Info hierarchy – how you organize user generated contents
• Admin Role - delete/mute user, delete a course guide
• One specific user function – depending on your user investigation.
In this part of the project, you are required to design the website with usability and accessibility in
mind. A series of recommended activities will be provided in this document as a guide for your team’s
action plan and discussion. It is advisable that you pace yourself and utilize the practical session to collect
feedback on your project from your tutors and peers through the mini-presentation session. Starting from
Week 8, you can use the lab to do mini-presentation to collect feedback from both tutors and peers on
pieces of work that have been produced. It is not necessary for presentation slides to be used.
Hint: Think about the type of feedback that you would like to get and select the results and work
to be presented. you will need to prepare a prototype of the website to conduct a usability test of your
website to the tutor and peers in labs. During this presentation session, you will need to demonstrate
a typical scenario in which your website will be used by your intended user(s) together with the core
requirements.
Submission deadline. The final report about the usability part (and corresponding code) will be
due on Weds mid-night of W11.
2.1 Recommended Activities
Step1: User Investigation. During this phase, you are to investigate your chosen group to determine
what they need from your website. To make things easier, your group can concern yourself with a single
very specific type of user:
• Students – this can range from any students starting just starting their program of studies to final
year students. It can also include students transferring into a computing program from other USyd
schools.
• Alumni – graduates who are willing to give back to their alma mater and to guide their juniors
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• SCS/administrative staff – this can include program managers, academic advisors and administrative
staff responsible for the running of program operations that affects students’ academic
performance.
Perform a PACT analysis for your chosen group. You will likely still find that your selected group is
too large and complex but your analysis should help you identify what you know about your target group
and what you need to find out during your investigation to narrow your group down to a single persona.
Step 1: Expected output: — 20 points.
• Outline of the user investigation process (surveys/interviews, how many?) that your group has used
to narrow down your target user.
• Research materials used to collect data about your target group
• A persona document outlining your target persona
• Based on your findings above, gather content (collection of documents) relevant to the interest of
your target persona. This should be in document form before you convert it to your website and
must keep it updated with any changes. Ensure you cite all sources and quote where you have
copied text verbatim.
Step 2: Navigation design. There will hopefully be a lot of information from Step 1 in many
potential categories. As well as this, your website will need to include the following ‘user’ actions stated
in the core requirements in addition to actions specified specially for your own target user group. Conduct
a card sorting session with some of your target user group and use your results to create the navigation
map (site map) of your website.
Step 2: expected output. — 20 points.
• Outline of card sorting session along with all materials that was used.
• Information architecture of your website
Step 3: Design-Evaluate (Prototype (paper or digital) ). Based on the information architecture
that you have from the previous phase, brainstorm and create sketches of your website. Create a
prototype of the best design and perform guerrilla test with target users using this prototype. Each of
your team member should take part in the guerrilla test, at least one participant is outside of your team.
Step3: expected output. — 20 points.
• A prioritized list of additional features?
• Outline steps taken to determine the ‘best’ design to be prototyped
• Paper or digital prototype,
• Mini-report that outline of how guerrilla test is conducted, actual raw results, materials used and
findings of the test.
Step 4: Design-Evaluate (Hi-Fi Prototype). Focus on converting your (improved) prototype
(paper or digital) to the real web server. Do this incrementally and perform evaluations (e.g., think aloud
test) to ensure that you are on the right track.
Step 4: expected output: — 20 points.
• Incremental development plan (two iterations at least)
• Outline of evaluations conducted

• Demonstrations of the functionalities mentioned at the beginning, admin roles, the user specific
function etc.
Remark 2 Your output in Step4 does not need to be perfect, we care more and the markings will focus
on your improvements over each iteration.
Step5:Final report. — 20 points.
• It is a collection of all the previous outputs in a neat format. The template is given.
Bonus step.— 20 points. You can re-use and extend many of your existing implementations on the
security project to have public and private mode of posts. The default mode of posts could be public.
The private mode will be visible to only specific role or user (i.e., you have to use encryption properly).
 

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