Usable Security Katharina Krombholz

News

24.07.2020

Preparations for the final exam

Dear students,

Thank you all for registering for the final exam on time. Today in the morning, we have sent out instructions for the final exam. Please read them carefully and collaborate with us to make the exam a safe experience for everyone. If you have any... Weiterlesen

Dear students,

Thank you all for registering for the final exam on time. Today in the morning, we have sent out instructions for the final exam. Please read them carefully and collaborate with us to make the exam a safe experience for everyone. If you have any questions, please let us know. 

If you have any doubts regarding your health status, please don't hesitate to contact us. We really want to be on the safe side and we guarantee you that everyone will get the chance to take the exam, even if you can't attend the one on Monday due to travel restrictions or health-related reasons.

For those of you who were not able to attend Monday's Q&A session:

Please make sure to revise the questions from the Pingo survey (I uploaded an ugly quick and dirty export of the questions under Materials in CMS) as the chances are very high that similar questions (open text questions) will be asked in the final exam. Also look at the topics covered in the cryptpad.

All the best for your studies!

17.07.2020

Results of assignment 3 and exam admission status

Dear students,

we published the results of assignment 3 in the CMS just now. Since the exam is on July 27th, please remember to register for the exam in the LSF until Monday, July 20th.

We will not be able to correct all remaining assignment until this... Weiterlesen

Dear students,

we published the results of assignment 3 in the CMS just now. Since the exam is on July 27th, please remember to register for the exam in the LSF until Monday, July 20th.

We will not be able to correct all remaining assignment until this registration deadline. However, since there were students who rely on the points of the fourth assignment to fulfill the exam admission requirements (26 points on the assignments), we checked their submissions and published the resulting admission status for the exam on the CMS.

 

Kind regards,

Matthias

29.06.2020

Assignment 4 is online!

Dear students,

This is to inform you that we just published assignment 4. Please use the forum to ask questions. The grading for assignment 2 will be published shortly. Please let us know if you rely on your points for assignment 4 in order to know whether you... Weiterlesen

Dear students,

This is to inform you that we just published assignment 4. Please use the forum to ask questions. The grading for assignment 2 will be published shortly. Please let us know if you rely on your points for assignment 4 in order to know whether you are eligible for the final exam, so that we can potentially prioritize corrections of your submission.

Please also revisit the guidelines on the main page of this course in CMS. Remember that you need at least 26 points from the assignments to pass the lecture and to be eligible for the final exam. You cannot use bonus points from the mini assignments to fulfill these minimum requirements.

21.06.2020

tomorrow's lecture

Dear students,

This is to inform you that there will be no lecture tomorrow, 22nd of June. We will not introduce an additional lecture slot and slightly reduce the content for this semester. However, we will provide an additional office hour/Q&A session before... Weiterlesen

Dear students,

This is to inform you that there will be no lecture tomorrow, 22nd of June. We will not introduce an additional lecture slot and slightly reduce the content for this semester. However, we will provide an additional office hour/Q&A session before the final exam.

Of course you are free to enjoy your Monday morning off, but we also kindly ask you to evaluate this lecture on the official lecture evaluation platform provided by UdS: https://qualis.uni-saarland.de/eva/?l=124181&p=n2ou2p. You may complete the evaluation any time between Monday and Friday next week (22nd - 26th of June).

We are really looking forward to your feedback. Note that in addition to the official evaluation, you may always provide direct feedback to help us improve this lecture.

08.06.2020

Good luck

Dear students,

Great to see that more solutions are being submitted throughout the day. I really wish you all the best for the remaining hours until the deadline! You can do it! If you cannot finish the assignment in time, please submit whatever you have.... Weiterlesen

Dear students,

Great to see that more solutions are being submitted throughout the day. I really wish you all the best for the remaining hours until the deadline! You can do it! If you cannot finish the assignment in time, please submit whatever you have. Still, you will have a learning experience that gives you tremendous preparation for the exam. Also note that you can use the bonus points from the mini assignments to compensate for missing points and to jump grades. 

For the future: Please keep in mind that the environment here is a safe space - ask questions when content from the lecture is unclear; use the cryptpad, the forum or just unmute yourself and ask. There is no such thing as stupid questions. 

08.06.2020

Deadline of assignment 2

Dear students, 

to finally make it clear: we will NOT extend the deadline for assignment two for the following reasons:

- a large number of students has managed to finish the assignment within the given time. Some students have already submitted their... Weiterlesen

Dear students, 

to finally make it clear: we will NOT extend the deadline for assignment two for the following reasons:

- a large number of students has managed to finish the assignment within the given time. Some students have already submitted their solutions a couple of days ago. We want to treat all students equally, hence all students have the same amount of time in order to compete the assignment.

- As I extensively mentioned, we are doing our best to help if students ask concrete questions about the subject matter. As the requests for deadline extensions did NOT raise any specific difficulties, I do not see a point why additional time will solve the issue and I get the impression that not the assignment itself, but lack of preparation for this course and time planning are the main issues. As a student, it is your job to plan when to solve your assignments and to start early enough. Writing a parser should be a rather straight-forward and easy task for an advanced computer science student and again, as already stated multiple times, statistics was a pre-requisite for this course. We also provide plenty of resources to fill knowledge gaps through self-study.

- I am also a bit concerned that some students ask for additional time, but do NOT take the opportunity to ask questions in class or in the forum. We are spending a lot of time and effort to create an environment where you can actively learn and test your knowledge, e.g., by collaboratively solving challenges and scenarios during the lecture (which are actually chosen to prepare you for solving the assignments, see the collaborative scenario to evaluate authentication mechanisms). I have also repeatedly offered the opportunity to ask questions immediately during the lecture (e.g., by unmuting yourself and engaging in discussion, or by using the cryptpad). We also have a forum where you can ask specific questions. If you make use of these opportunities, solving the assignments within 2 weeks should be doable.

And finally, I would like to thank all students who attend the lecture regularly and especially those who engage in discussion and use the forum. You are doing a great job! We are very happy to have you in class.

To those of you who have submitted the assignment already: congratulations, you did a great job! Keep up the good work and be proud of yourself! :)

If you have any feedback or any suggestions how to improve this lecture, please let us know. We are spending a lot of time and effort into making this lecture a great learning experience for all of you. If there is anything specific that we can do better, let us know.

 

Show all
 

[Advanced Lecture] Usable Security

 

In this lecture, you will learn about human-centric aspects of IT security. Besides research and design methods, you will learn about hot topics in usable security such as authentication, encryption and privacy. In particular, you will learn to

  • design user studies to study how humans interact with security & privacy technology with respect to threat models, 
  • collect, understand, evaluate qualitative & quantitative data,
  • interpret results and draw conclusions based on your data,
  • design new security and privacy technology that is better tied to the users' needs and values.

Prerequisites: CySec1/CySec2 or Security, Statistics. If you have not yet completed any security courses BUT have a strong background in human-computer interaction, psychology, or design you are still welcome to attend this interdisciplinary lecture. In that case, please contact us to directly to discuss whether this is the right course for you. 

Registration: 5 May - 14 May 19 May 2020, CMS (The registration has been extended due to the high demand and an additional 5 places are available on a first come first serve basis.)

 

When & Where?

The lecture will take place every Monday from 10.00-12.00, starting May 4th.
Location: https://zoom.us/j/94962559562?pwd=NjFxQjBYUWl1RTdOQk5YbHRrOXQxdz09 (until further notice). Physical presence is not required during the semester, except for the final exam (see details below).

 

Grading

In total, you can reach 100 points in the course of this lecture: you may reach up to 50 points for solving graded assignments (see more information below) and 50 points for the exam. Additionally, you may collect 5 extra bonus points through mini assignments. Hence, your overall grade will consist of
  • graded assignments (50 points in total),
  • a written exam at the end of the semester (50 points),
  • and 3 mini-assignments to collect 5 extra points.

Minimum requirements to pass:

  • You need to receive a minimum of 26 points from the exam and 26 points from the 4 assignments.
  • Bonus points can be used to jump grades higher than 4.0. Note that you need to have a minimum of 52 points without bonus points to pass this course.

Graded Assignments 

You are expected to solve four assignments to deepen your knowledge from the lecture. Note that you need to receive a minimum of 26 points to be admitted to the written exam. The solutions must be submitted via CMS prior to the (sharp) deadline; assignments will cover the following topics:

  • Qualitative research methods (11.05 - 25.05)
  • Quantitative research methods (25.05 - 08.06)
  • User study design (15.06 - 29.06)
  • Design (29.06 - 13.07)

Collaboration

You are encouraged to discuss exercise sheets and ask us and other students for help if necessary. However, do not actually show your resulting work to each other if we did not explicitly tell you to do that.
 

Written Exam

The end of term exam will take place on July 27 (from 10:00 - 12:00) at Günter Hotz Hörsaal 0.01. Please note that physical presence is required! You must not attend the exam if you have any flu-like symptoms and bring your own mask (see e-mail from Friday, 24th of July)

The exam will consist of knowledge questions and scenarios that you are expected to solve. Those who fail the written exam will be able to take a re-take exam. You cannot take the re-exam if you have already passed final exam unless you get your attempt removed from LSF by the study office.

 

Lecture Overview & Topics

Please note that this a tentative timetable. Changes will be announced as news posts.

Date Topic Collaborative CryptPad
04.05.2020 Introduction and Organizational Aspects  
11.05.2020 Qualitative Methods https://pads.c3w.at/pad/#/2/pad/edit/nLK15AvuxrS00YCk6bExE+c4/​
18.05.2020 Quantitative Methods & Statistics 1 https://pads.c3w.at/pad/#/2/pad/edit/BYy2Dw8hyC6u7FzzVa6vogvE/​
(self study) Statistics Crash Course  
25.05.2020 Quantitative Methods & Statistics 2 https://pads.c3w.at/pad/#/2/pad/edit/0Dr6ZbG2NDxQQeUbYsm6oAUe/​
08.06.2020 User Study Design and Ethics https://pads.c3w.at/pad/#/2/pad/edit/m6QNRNbfAN0fJAI96rg9k1BI/
15.06.2020 Measuring Humans, Bias  
29.06.2020 Design Methods https://cryptpad.fr/pad/#/2/pad/edit/sIk3Y3J4Zw6VbkpQzEHXzWct/
06.07.2020 Authentication, Encryption  
13.07.2020 Final Q&A https://pads.c3w.at/pad/#/2/pad/edit/i3eeDYtaLs5iHBlc0e3bnr5O/
    https://pingo.coactum.de/events/324834 (see Materials for question export)
27.7.2020 Written Exam Günter Hotz Hörsaal 0.01, from 10.00-12.00


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