Cryptography And Network Security Atul | Kahate Ppt

This module transitions from basic terminology to practical encryption methods.

Used for authentication and non-repudiation, ensuring the sender’s identity and message integrity. 5. Network Security and Practical Implementations cryptography and network security atul kahate ppt

Uses a single shared secret key for both encryption and decryption. Asymmetric Key: Uses a public/private key pair. This module transitions from basic terminology to practical

The first unit of the book establishes why security is necessary in the modern information age. Ciphertext (scrambled message)

Substitution and Transposition techniques. 3. Symmetric Key Algorithms (Modern Cryptography)

This section applies cryptographic principles to real-world networking. Cryptography And Network Security - McGraw Hill

Concepts like Plaintext (original message), Ciphertext (scrambled message), and Keys (scrambling rules). Symmetric vs. Asymmetric Cryptography: