Lecture Notes

Introduction (updated on 30.09.2025)

Data Encryption Standard (DES)  (updated 12.10.2025)       Examples

Modular Arithmetic (updated on 22.10.2025)

RSA Algorithm    (updated on 22.10.2025)       Examples

SHA512 (updated on 22.10.2025)

Digital Signatures (updated on 27.10.2025)

Classical Encryption Techniques (updated on 02.11.2023)       

Physical Security (updated on 02.11.2023)

Problems for MT Exam  (updated on 02.11.2023)

Network Security 1 (updated on 03.12.2023)

Network Security 2 (updated on 03.12.2023)

Fields Polynomial Arithmetic             Examples

Advanced Encryption Standard (AES)

Malware

Problems (updated on 03.01.2024)