Cryptography Markus Bläser




The tutorials have been assigned now and you can see your assigned tutorial slot on your personal status page.

Please do not forget to write down your name and tutorial number on your exercise submissions.


Friday lectures

Friday lectures start at 12:25 to have a longer lunch break. We will only have 5 min break in between and end at 14:00



Assignments will be collected on Fridays in the lecture hall before the lecture starts. Alternatively, you can put your solutions into the letter box in the ground floor of E1 3. The letter box will be emptied on Fridays at 12:25.


Different lecture hall on April 20

On April 20, the lecture will take place in Hörsaal I in E2.5.





This course is an introduction to modern cryptography. We will follow the book by Katz & Lindell (see below). It is highly recommended that every participant has access to a copy of the book.

We will use slides to present definitions, theorems, and constructions. They will be made available on this web page. Proofs will be mainly done on the blackboard. Nevertheless, they are an integral part of the lecture.


Time and Date

  • Wednesday 14:15 to 15:55, GHH
  • Friday 12:25 to 14:00, GHH

First lecture: Wednesday, April 11.



There will be weekly tutorials starting in the week April 23 to 27. Registration for the tutorials is possible from April 13 to 18 on this web page. The time slots are:

  • Monday, 16:00 to 18:00
  • Tuesday, 10:00 to 12:00
  • Tuesday, 14:00 to 16:00
  • Thursday, 10:00 to 12:00

Assignments will be handed out every Friday and are due one week later.

To be admitted to the exams, you need at least 50% of the points in the assignments. You can submit the assignments in groups of up to three people. However, everybody should have understood each solution and should be able to present them in the tutorial.



  • Endterm August 10, 2018, 09.00 - 12.00
  • Reexam September 25, 2018, 13.00 - 16.00


Your grade will be the grade of the exam at the end of the semester (either endterm or re-exam). There will be no midterm exam.



We will mainly follow the book by Katz & Lindell. The book by Stirzaker is a very good introduction to elementary probability theory.

  • Jonathan Katz, Yehuda Lindell, Introduction to Modern Cryptography, 2nd ed., CRC Press.
  • David Stirzaker, Elementary Probability, 2nd ed., Cambridge University Press.


If you encounter technical problems, please contact the administrators