Institute of Computer Science
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  2. 2025/26 spring
  3. Modern Cryptology (MTAT.07.002)
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Modern Cryptology 2025/26 spring

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Lecture notes (or sometimes a PowerPoint presentation) with the most essential information will be made available after each lecture.

A preliminary and incomplete list of lectures.

Lectures

  • Lecture 1: Introduction - Course organization, bird's-eye view to modern cryptology.
  • Lecture 2: Refresher - Basic concepts in cryptology (asymptotics, security modeling, assumptions, reductions, public key encryption)
  • Lecture 3: Groups - Discrete-logarithm-based cryptology, including elliptic curves and pairings. We also cover signature schemes and the BLS signature as an example where pairings are useful.
  • Lecture 4: Zero-Knowledge Proofs 1 - Zero-knowledge proofs and e-voting as one application. Sigma protocols.
  • Lecture 5: Zero-Knowledge Proofs 2 - More Sigma protocols, the Fiat-Shamir heuristic, Schnorr's signature.
  • Lecture 6: Post-Quantum Security - Threat of quantum computers to existing cryptology. LWE-based public key encryption as one potential post-quantum secure tool.
  • Lecture 7: Commitment Schemes
  • Lecture 8: Private Information Retrieval and Oblivious Transfer
  • Lecture 9: Verifiable Secret Sharing
  • Lecture 10: Multi-Party Computation
  • Lecture 11:
  • Lecture 12:
  • Lecture 13:
  • Lecture 14: Blockchain
  • Lecture 15: Fully Homomorphic Encryption - Utility of FHE. Additively homomorphic encryption. Brief look into somewhat homomorphic encryption and fully homomorphic encryption.
  • Lecture 16: E-voting in Estonia - High-level overview.
  • Institute of Computer Science
  • Faculty of Science and Technology
  • University of Tartu
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