Understanding Modern Symmetric-Key Ciphers: P-Boxes, S-Boxes & Product Ciphers 🔐

In this video we take a look at: 1) Introduction to Modern Symmetric-Key Ciphers 2) Modern Block Ciphers 3) Susbtituiton or Transposition 4) Components of Modern Block Cipher 5) Transposition Unit: P-Boxes 6) Substitution Unit: S-Boxes 7) Exclusive-OR (XOR) 8) Product Ciphers 9) Product Ciphers: Diffusion 10) Product Ciphers: Confusion Introduction: (0:00) Modern Block Ciphers : (0:46) Susbtituiton or Transposition: (1:48) Components of Modern Block Cipher: (2:45) Transposition Unit P-Boxes: (4:29) Substitution Unit S-Boxes: (6:51) Exclusive-OR (XOR): (9:25) Product Ciphers: (13:34) Product Ciphers Diffusion: (17:32) Product Ciphers Confusion: (19:50)