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Information security, cryptographic ciphers

All lectures: All lectures on the discipline: information security, cryptographic ciphers 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. Architecture of block ciphers (part 1)

2. Architecture block ciphers. Part 2

3. Architecture block ciphers. Part 3

4. Symmetric ciphers

5. Caesar cipher example

6. Viginer code, example

7. Code Atbash example

8. Code of Playfera example

9. Code ADFGVX, example

10. XOR encryption example

11. Code Vernama example

12. Code IDEA, Algorithm

13. RC2 cipher algorithm

14. Cipher rc4

15. Cipher RC5 (Rons Code 5 or Rivests Cipher 5) Algorithm, cryptoresistance

16. Cipher RC6, Algorithm Examples

17. DES cipher, Algorithm

18. Triple DES algorithm

19. Rijndael (AES) options

20. RSA CRYPTOSYSTEM, digital signature

21. SSL, HTTPS

22. Hybrid ciphers. PGP and GnuPG

23. PGP hybrid cryptosystem, algorithm

24. End-to-end encryption

25. HSTS mechanism activating the forced secure connection via the HTTPS protocol

26. Chain of certificates: root, intermediate

27. RC4 - ARC4 или ARCFOUR (alleged RC4) — потоковый шифр