Foundations of Cybersecurity 1

For the exam tomorrow, please arrive by 8:45 so we do ID checks before the exam start.

 

If your answer is "yes" to one or more of the following questions, then you are not allowed to attend the exam. If you provide a doctor's certificate to the examination office later on, the examination attempt will be canceled and will not count.

Did you have definite contact with a Covid-19 patient, who was tested positive, in the last 14 days?
Do you have any of the following symptoms?
- Cough / Husten
- Sore throat / Halsschmerzen
- Nasal congestion / runny nose / Schnupfen
- Diarrhoea /Durchfall
- Fever /Fieber
- Aches and pains / Gliederschmerzen
- Loss of smell (e.g. no longer able to smell burnt food) / Geruchsverlust
- Loss of taste (e.g. unable to distinguish when food is burnt) / Geschmacksverlust

If you are unsure about any of these questions, please consult a doctor to decide whether or not your health status is critical. If the decision is that you can participate, you must bring a medical certificate attesting to that along to the exam.

Note also that the university has decided to allow students to participate irrespective of whether they live in a risk area (currently everything except for Saarpfalz-Kreis).

[Long message ahead, please read it all carefully if you attend the backup exam]

Dear all,

the exam is just a couple of days away at this point. Since the registration deadline for taking the exam has passed, I have assigned seats to everyone now. These can be viewed in your "Personal Status" page in the CMS. Note that to avoid congestion at the doors, we will use all four entrances to the lecture hall.

- If you are seated in rows 1, 5, or 9 and in seats 1, 5, or 11, please use the *first* door on the right when entering the foyer.
- If you are seated in rows 1, 5, or 9 and in seats 15, 19, or 23, please use the *second* door on the right when entering the foyer.
- If you are seat in rows 13 or 17 and in seats 1, 5, or 11, please use the *first* door on the left when entering the building from the top (facing E2 4).
- If you are seat in rows 13 or 17 and in seats 1, 5, or 11, please use the *second* door on the left when entering the building from the top (facing E2 4).

The formula becomes more obvious if you click on the assigned seat you can see in the CMS (first three rows take the front two entrances, last two the back entrances).

Please also note the following message that I am asked to inform you about from the university:

**Please note that it is absolutely necessary for you to bring your own protection mask with you. Students who have a doctor’s certificate that they cannot wear protection masks have to bring their own face shields andwear these instead of a mask.**

We will open the doors at 8:45. Please be sure to be there on time, such that we can do the ID checks *before* the exam starts. Since it is mandatory for you to wear a mask when we check your ID, this just makes it less annoying to you *during* the exam. *For to the safety of all persons in the room it is also strongly recommended to wear protection masks during the entire exam.*

While waiting to enter the room, please also ensure that you keep your distance from each other. This is particularly relevant these days as numbers are on the rise and I would to avoid our backup exam becoming a superspreading event.

Also (and I will re-post this on Sunday):

If your answer is "yes" to one or more of the following questions, then you are not allowed to attend the exam. If you provide a doctor's certificate to the examination office later on, the examination attempt will be canceled and will not count.

Did you have definite contact with a Covid-19 patient, who was tested positive, in the last 14 days?
Do you have any of the following symptoms?
- Cough / Husten
- Sore throat / Halsschmerzen
- Nasal congestion / runny nose / Schnupfen
- Diarrhoea /Durchfall
- Fever /Fieber
- Aches and pains / Gliederschmerzen
- Loss of smell (e.g. no longer able to smell burnt food) / Geruchsverlust
- Loss of taste (e.g. unable to distinguish when food is burnt) / Geschmacksverlust

If you are unsure about any of these questions, please consult a doctor to decide whether or not your health status is critical. If the decision is that you can participate, you must bring a medical certificate attesting to that along to the exam.

Note also that the university has decided to allow students to participate irrespective of whether they live in a risk area (currently LK Neunkirchen and St. Wendel).

---

Should you have any questions, please raise them early. While I will re-post the questionaire on Sunday, please do not expect me to react to emails over the weekend. Since the exam starts at 9am on Monday, there will be little time that morning to answer your questions.

In preparation for the exam, I checked the LSF for registered students. Turns out that the exam is registered for the second date of the summer term (should be second date for winter 2019/2020). Please make sure you register there (if visible to you, it's exam number 10638).

For all those that forgot the exam date, it is October 19, 2020, 9-11am.

As Jan Reineke just explained in the kickoff event, all backup exams for the winter term are postponed to the end of the semester break. I have set the date for the backup exam for October 19, 2020, 9-11am. In exceptional cases (e.g., if you need to get the points to remain on Bafög etc.), please contact me and we can try to find a solution.

 

I hope you are all healthy and will stay healthy going forward.

Hi all,

as you have likely already heard, the university has taken the necessary step of postponing as scheduled exams until at least April 24. Given that this is an extreme situation, I am confident that rules for improving (only possible within the same "testing period") will be extended accordingly. Therefore, the exam is cancelled for now. Should there be a specific reason why you definitely need to be examined before approx. beginning of May, please let me know so we can check options.

Apart from that, let me us this channel to urge all of you to follow the guidelines given out by the government. We will get through this, but it is important that every single one follows the best practices (i.e., social distancing) as best as they can.

Once I have more information about the exam date, I will let you know. Should those dates not work for some people, we will try to find alternatives to a written exam on that day for individual cases.

Until then, stay safe and healthy!

Due to an incredible effort by the tutors, the exams are already graded and the exam results are now visible in the CMS. So, if you see any one them on campus, thank them for their great work.

We will announce the date for the exam inspection in the next couple of days (likely, it will happen at some point next week).

Hi all,

I have spoken with the university regarding the exam and the storm tomorrow. We have decided *not* to postpone the exam, as this would require finding a new slot where everyone can attend. Should the situation tomorrow be so bad that public transportation is entirely out, we may reconsider.

I nevertheless urge all of you to carefully monitor how public transport may be affected and potentially find other means of getting to the university. If need be, use the Askbot to find carpools or such.

Sorry for the delay, here we go. The following list of topics will not be part of the exam:

- Complementary legal aspects (206, 317)
- HMACs (exact inner workings, understand why simply having MD5(secret||message) is bad)
- Additional security considerations for RSA
- DH-EKE, PACE
- Details on attack on WEP (but understand *how* it is possible)
- Exact ordering of IP header components (but, e.g., have an understanding of how many bits an IPv4 address has)
- Countering BGP Hijacking
- DNSSEC RRSIG details
- logjam and other TLS/SSL attacks
- Basic Principles of Data Protection Law in Germany

Dear students,

For the next tutorial iteration, the tutors would like to present some practical task. Thus, if possible, please bring your laptop and have a look at Kali Linux , which comes preinstalled with all requirements for this experiment and can be booted from a USB drive. (Hint: SecureBoot has to be set to disabled in the BIOS/UEFI settings to make the bootable USB drive work)

Have a good weekend!

Dear students,

- we have several cases, where students did not include their name and/or matriculation number on the submission, please make sure this information is always present
- if you submit in groups, please make sure, only one student submits your solution
- also, please read each task carefully, i.e. not only the task, but also the instructions on how to submit the task 

learning to read carefully is not only going to save your points on the exercises sheets, but also in the final exam

Concerning the current sheet: for the python task, if you do not receive a server response, but don't know why: try to also encode parameter names and other stuff inside the query.

Cheers,
Nico

Given the feedback from our tutors, I would like to re-iterate my point about plagiarism: if we catch you once, you'll be warned. If we catch you again, you will not be able to take the exam this semester.

Note that taking the exercise solutions from last year is not a great idea. First, some exercises have been changed (and we found that people blindly copied in the old solutions). Second, this is definitely a case for plagiarism. The same applies to copying text from the Web, other students, or books. Note that it also does not help you if you provide the source of the information. All exercises must be done by yourselves.

Finally, we don't have the exercise sheets to keep you or our tutors busy. These are meant as a way for you to familiarize yourselves further with the topics. Naturally, you can try and cheat on them, but it's somewhat pointless: in the end, if you haven't done the exercises, you'll likely have issues in the exam.

Hence, please make sure that you just do the work yourself!

All the tutorials are now assigned, you can find yours on your personal status page. Please remember, that the Monday tutorial only starts on November, 4th. Also, due to the public holiday this week Friday, that tutorial will not happen. Please go to any of the others this week.

Further, thus far only about 40 students have registered for the Python introduction. Note that there will be numerous exercises based on Python during the semester and unless you have already worked with Python, we highly suggest you take the introduction.

Dear students,

As announced in the lecture, Dominik and Nico are going to offer tutorials, covering the basics to get you started with python programming. The tutorials are going to include some tasks for you to solve by programming, so if possible, please bring a laptop and make sure Python (3.7) is installed. If you want, you also already can install and have a look at Pycharm, a full Python IDE, we can recommend and is free for students (https://www.jetbrains.com/pycharm).

You can choose the time slot that fits you best:

• Tue 29th Oct. 10:15, CISPA Lecture Hall

• Wed 30th Oct. 12:15, CISPA Lecture Hall

You can find the lecture by turning left when entering the CISPA building (pass by the reception desk).

Please use the registration feature in the CMS to sign up for one of the slots. You can find the registrations for the tutorials on your personal page. Given that the lecture hall cannot hold all students, we have limited the capacity per slot to 70 students.

Thank you and we hope to see all of you in the tutorial!