CRYPTOGRAPHY AND BLOCKCHAIN GROUP

Lecturer and TA: Stefan Dziembowski

 

Lecture: Wednesdays 14:15 - 15:45 (room 2100)

Exercises: Wednesdays 16:15 - 17:45 (room 2100)

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Assessment criteria: final oral exam (note: because of the Coronavirus epidemic the mid-term exam has been cancelled) 

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Lectures and exercises:

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• 26.02.2020

  • Lecture 1:  Introduction to Cryptography  [pptx]​

  • Exercises [pdf]
     

• 4.03.2020​

  • Lecture​ 2:  Symmetric Encryption I [pptx]

  • Exercises [pdf]
     

• 11.03.2020​

  • Lecture 3: Symmetric Encryption II [pptx]​

  • Exercises - cancelled due to the Coronavirus epidemic.
     

• 18.03.2020

  • Lecture 4a: Symmetric Encryption III [pptx]​

  • Lecture 4b: Hash Functions I [pptx]

  • Exercises [pdf]
     

• 25.03.2020

  • Lecture 5a: Hash Functions II [pptx]​

  • Lecture 5b: Message Authentication I [pptx]

  • Exercises [pdf]
     

• 1.04.2020

  • Lecture 6a: ​Message Authentication II [pptx]

  • Lecture 6b: Introduction to Public Key Cryptography [pptx] (due yo the lack of time we skipped slides 52-73)

  • Exercises [pdf]
     

• 15.04.2020​

  • Lecture 7 and Exercises: A Brush-up on Number Theory and Algebra​ [pptx] (we covered slides 1-117
     

• 22.04.2020​

  • Lecture -- we finished Lecture 7​

  • Exercises [pdf]
     

• 29.04.2020​

  • Lecture 8: ​Public-Key Encryption I [pptx]

  • Exercises [pdf]
     

• 6.05.2020​

  • Lecture 9: ​Public-Key Encryption II [pptx]

  • Exercises -- we finished the lecture
     

• 13.05.2020​

  • Lecture 10: Signature Schemes [pptx]

  • Exercises [pdf[ ​
     

• 20.05.2020​

  • Lecture 11: Commitment Schemes and Zero Knowledge​ [pptx] (we finished on slide 89)
     

• 27.05.2020​

  • Lecture 12: Secure Two-Party Computation Protocols [pptx] (we also finished the slides from last week)
     

• 3.06.2020

  • Lecture 13a:​ Private Information Retrieval [pptx]

  • Lecture 13b: Secure Multi-Party Computation Protocols [pptx]

  • Exercises [pdf]
     

• 3.06.2020​

  • Lecture 14: Introduction to Cryptocurrencies [pptx,pptx]

  • Conclusion [pptx]

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Example of the mid-term exam from the previous year: [pdf].

Exercises from old exams (in Polish): [pdf,pdf,pdf]

Theory questions from an old exam (in Polish): [pdf]

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(note: because of the Coronavirus epidemic the exam rules will be different this year, see the top of this page) 

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