Skip to content
Technical University of Munich

Security in Communications and Storage

Lecturer (assistant)
Samed Düzlü
Antonia Wachter-Zeh
Bharath Purtipli
Emma Munisamy
Number 0000005241
Type lecture with integrated exercises
Duration 4 SWS
Term Winter semester 2026/27
Language of instruction English
Position within curricula See TUMonline
Dates See TUMonline

Admission information

See TUMonline

Description

- Motivation and practical need for secure systems
- Short overview of classical cryptography: symmetric and public-key cryptography
- Short introduction to linear error-correcting codes: generator and parity-check matrix, dual code, minimum distance, MDS codes
- Post-quantum cryptography: threat of a quantum computer
- Code-based cryptography (McEliece & Niederreiter schemes, attacks, other code-based systems)
- Lattice-based cryptography (Shortest Vector Problem, Closest Vector Problem, Subset-Sum cryptosystems, NTRU cryptosystem, Ring Learning with Errors)
- Private information retrieval: basic idea (security vs anonymity vs privacy as concepts), toy schemes for 1-3 servers; computational vs. information-theoretic PIR; review of communication complexity results
- Private information retrieval over coded databases: PIR rate and capacity results

Prerequisites

- Mathematical basics (in particular linear algebra)
- Recommended: some knowledge in channel coding (can be taken in parallel to this lecture)

Teaching and learning methods

In an accompanying tutorial, the content of the lecture is applied by calculating problems and programming small tasks.

Links

To top