Slide 1 Network Security Chapter 8 Slide 2 Cryptography Introduction to Cryptography Substitution Ciphers Transposition Ciphers One-Time Pads Two Fundamental Cryptographic…
Slide 1 Network Security Slide 2 An Introduction to Cryptography The encryption model (for a symmetric-key cipher). Slide 3 Symmetric-Key Algorithms DES – The Data Encryption…