Grundlagen der Cybersicherheit 1 Ben Stock

News

16.02.2019

Exam results are online / Exam inspection

After the tutors already spent 10 hours on Monday grading the exams, they finished the grading today in another 7 hours.

The results can be viewed in the CMS in your student overview. 

Since I am travelling all of next week and to avoid a collision with other... Read more

After the tutors already spent 10 hours on Monday grading the exams, they finished the grading today in another 7 hours.

The results can be viewed in the CMS in your student overview. 

Since I am travelling all of next week and to avoid a collision with other exams, the exam inspection will take place on Friday, 2-3:45pm (the regular lecture slot) in the CISPA building (room 0.07). Please bring your student ID.

07.02.2019

Exam registration

I have just imported all students from LSF again. Please check in your student overview if we have marked you down as registered for the exam. We will be printing the exams tomorrow, so please check right away.

04.02.2019

Exam tutorial tomorrow

The exam tutorial tomorrow will be held in CISPA's lecture hall (turn left when you enter the building). We have an important visitor until around 11:30, so please refrain from arriving before 11:30.

25.01.2019

Lecture slides and evaluation results online

I have uploaded the slides for today's lecture as well as the overview of the evaluation.

12.01.2019

Regarding exercise sheet 10

You must not take a shortcut with the domain name of a name server, e.g., you have to use 

dig @198.41.0.4 saarland NS

and not

dig @a.root-servers.net saarland NS

This will yield less points in the exercise. If you already have the NS, e.g., for a... Read more

You must not take a shortcut with the domain name of a name server, e.g., you have to use 

dig @198.41.0.4 saarland NS

and not

dig @a.root-servers.net saarland NS

This will yield less points in the exercise. If you already have the NS, e.g., for a given TLD, you do not have to query the root name server again.

11.01.2019

Experiment: Lecture slides online

As an experiment, I have uploaded today's lecture slides as a PDF already and have decided to skip any quizzes for today.

I am looking forward to your feedback on this after the lecture.

04.01.2019

Plagiarism

There seems to be some misunderstanding regarding plagiarism. In particular, whenever you use an online resource which you just copy, that is considered plagiarism (regardless of whether you provide the URL). All answers are supposed to be in your own... Read more

There seems to be some misunderstanding regarding plagiarism. In particular, whenever you use an online resource which you just copy, that is considered plagiarism (regardless of whether you provide the URL). All answers are supposed to be in your own words.

Moreover, if you have the same solution as someone other than your submission partner, this is also plagiarism. We have seen cases where two students had the same solution but different tutorials. It is not entirely hard for us to find such cases.

In particular, to be very clear: the first attempt at plagiarism gets you 0 points for that sheet, the second time we forward your information to the Prüfungsamt and you lose the right to take the exam.

21.12.2018

Feedback and photos

I want to take the chance to thank you all for the feedback so far. Since I cannot respond to the anonymous feedback in the CMS, let me summarize and say that I take this seriously (regarding improvable phrasing of the exercises, slide and solution upload).

I want to take the chance to thank you all for the feedback so far. Since I cannot respond to the anonymous feedback in the CMS, let me summarize and say that I take this seriously (regarding improvable phrasing of the exercises, slide and solution upload).

  • We will make all solutions available in the week of January 7th. As for the tutorial sheets, this might take a bit longer.
  • The slides are not available before the lecture on purpose. I will consider uploading them, but at the very least without the quizzes). 
  • As far as unclarity on the sheets go: if you feel this way, let us know early on. If possible, we can then change them accordingly.

 

Apart from that, I hope you have enjoyed the lectures thus far. If you have taken any reasonable quality pictures in today's lecture, I appreciate if you can share them with me via email.

Merry Christmas!

18.12.2018

Christmas lecture

Since we have our final lecture of the year this Friday, very close to Christmas, I am prepared to spread some holiday spirit. In particular, I have a red and white Christmas hat that I can wear. If someone is able to provide additional "outerwear", I am also... Read more

Since we have our final lecture of the year this Friday, very close to Christmas, I am prepared to spread some holiday spirit. In particular, I have a red and white Christmas hat that I can wear. If someone is able to provide additional "outerwear", I am also willing to wear that ;-)

07.12.2018

Bug in slides

There was a bug in the slides of this week. The IP header checksum is calculated on the entire remaining header of the IP packet (except for the checksum itself, naturally). The slides have already been fixed and I left a note in there. 

26.11.2018

Lecture recordings

The lecture recordings up until Lecture 05 have been made available now. Seemingly through our setup, though, there is a bit of audio loss (mostly in the last 10 minutes of each lecture). We are still working with the university to move from a hacky solution with an... Read more

The lecture recordings up until Lecture 05 have been made available now. Seemingly through our setup, though, there is a bit of audio loss (mostly in the last 10 minutes of each lecture). We are still working with the university to move from a hacky solution with an extra laptop capturing the audio via an antenna to something more usable...

03.11.2018

Mistake on exercise sheet 2 corrected

There was a mistake in problem 2a) of exercise sheet 2, which has now been corrected in the most recent version.

02.11.2018

Padding Oracles out of scope for exam

Due to my misjudgement of the timing of today's lecture, I was much too hasty through the padding and padding oracle parts and lost my cool there. Please accept my apology for that. These topics will therefore not be part of the exercises or exams.

To avoid that... Read more

Due to my misjudgement of the timing of today's lecture, I was much too hasty through the padding and padding oracle parts and lost my cool there. Please accept my apology for that. These topics will therefore not be part of the exercises or exams.

To avoid that you forget about this until the end of the semester, I have removed the slides from the PDF version of today's lecture.

29.10.2018

Office Hour room change

The office hours will be held in CISPA this week (room 0.06).

26.10.2018

Exercise Sheet 1 online

You can now find the first exercise sheet in the Materials section. Read the submission instructions carefully and do not forget to include your name and matriculation number in the final submission.
23.10.2018

Tutorials

We have opened the sign up process for tutorials. It would greatly help us if you can exclude certain tutorials so that if a single date does not work for anyone, we can still adjust the slots.

22.10.2018

First lecture

I have heard that a number of students showed up last Friday for the lecture. While my group's web site clearly said that the lecture only starts this week, this was not made clear in the CMS and all information pages linked here.

I apologize for this mishap: but... Read more

I have heard that a number of students showed up last Friday for the lecture. While my group's web site clearly said that the lecture only starts this week, this was not made clear in the CMS and all information pages linked here.

I apologize for this mishap: but on the positive side, this is the only time the lecture will not take place :-)

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Grundlagen der Cybersicherheit 1

Students learn foundational security principles, basics of cryptography, network and network security, as well as privacy-preserving mechanisms. They learn to define security goals and are familiarized with the most common attack scenarios.

We will offer two office hours: Tuesday 12-13 and Tuesday 16-17. The rooms will be announced soon.



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