In this video we take a look at:
1) General Structure of Symmetric-Key Ciphers
2) Cryptanalysis and Cryptanalysis Attacks
3) Categories of Traditional Ciphers
4) Substitution Ciphers
5) Monoalphabetic Ciphers
6) Caesar/Additive Cipher
7) Multiplicative Cipher
8) Affine Cipher
General Structure: (0:00)
Cryptanalysis : (3:27)
Cryptanalysis Attacks: (4:00)
Categories of Traditional Ciphers: (7:02)
Substitution Ciphers: (8:05)
Monoalphabetic Ciphers: (9:00)
Caesar/Additive Cipher: (9:53)
Caesar/Additive Cipher Example: (13:48)
Multiplicative Cipher: (15:35)
Affine Cipher: (18:14)
![](https://s2.save4k.ru/pic/KxZM_lffbhM/maxresdefault.jpg)