Cryptography and cryptanalysis, steganography and stegoanalysis

All lectures: All lectures on the discipline: cryptography and cryptanalysis, steganography and stegoanalysis are collected here. These fascinating lectures provide us with the opportunity to explore the deep principles and phenomena underlying our knowledge and our desire to understand the world.


1. Public key cryptosystem
2. 1. Basics of information security 1.1. Basic concepts
3. 1.2. Regulatory documents in the field of information security
4. 1.3. Classification of threats to information systems
5. 1.4. Basic methods for ensuring the security of information systems
6. 2. Cryptographic methods for protecting information 2.1. Terms and Definitions
7. 2.2. Classification of cryptographic algorithms
8. 2.3. Symmetric block encryption 2.3.1. Basic principles of symmetric block encryption
9. 2.3.2. Block Symmetric Encryption Algorithms
10. 2.3.3. Block cipher encryption modes
11. 2.3.4. Cryptanalysis block ciphers
12. 2.4. Symmetric Stream Encryption
13. 2.5. Asymmetric encryption 2.5.1. Mathematical foundations of asymmetric encryption
14. 2.5.2. Asymmetric encryption algorithms
15. 2.5.3. Comparative analysis of symmetric and asymmetric encryption algorithms
16. 2.6. Hash functions
17. 3. Authentication 3.1. Password Authentication
18. 3.2. Certificate based authentication
19. 3.3. Using authenticating devices
20. 3.4. Biometric authentication methods
21. 4. Electronic digital signature.
22. 5. Basics of network security .5.1. Threats to security in global networks
23. 5.2. Means of cryptographic protection of connections in computer networks
24. 5.3. Using Firewalls to Protect Local Area Networks
25. 5.4. An example of the implementation of a security policy on a firewall
26. 6. Security features of operating systems
27. 6.1. Security Tools in Windows OS
28. 6.1.1. Resource Access Control
29. 6.1.2. CryptoAPI Windows OS
30. 6.1.3. Audit
31. 6.2. security tools in OS Unix family
32. 6.2.1. Managing Access Rights to Resources in UnixLinux
33. 6.2.2. Access rights of processes to Unix-Linux resources
34. 6.2.3. Unix Linux Audit
35. Steganography, classification of types of steganography
36. Quantum cryptography
37. Cryptanalysis
38. Crypto history
39. Cryptography and computer security (part 2)
40. Cryptography and computer security (part 3)
41. Cryptography and computer security (part 4)
42. Basic concepts of cryptography
43. Steganography and steganalysis. seeing and application options
44. Post-quantum cryptography. basics and algorithms