Lecture Notes

Introduction (updated on 30.09.2025)

Data Encryption Standard (DES)  (updated 22.10.2023)       Examples

Modular Arithmetic (updated on 9.10.2023)

RSA Algorithm    (updated on 15.10.2023)       Examples

SHA 512 (updated on 30.10.2024)

Digital Signatures_Certificates_One Time Password (updated on 07.11.2023)

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)