Cryptography And Network Security Atul Kahate Ppt 2021 -

Key exchange mechanism and its vulnerability to Man-in-the-Middle (MIM) attacks. 4. Message Authentication and Digital Signatures

Internet Firewall DMZ (Web Server) Firewall Internal LAN ─────┬────── ┌───┴───┐ ┌───┴───┐ ┌───┴───┐ ─────┬────── │─────────►│ ├────────►│ ├───────►│ ├─────►│ │ └───────┘ └───────┘ └───────┘ │ Intrusion Detection Systems (IDS) cryptography and network security atul kahate ppt

The backbone of secure web browsing (HTTPS). Slide decks focusing on this area map out the Handshake Protocol, Change Cipher Spec Protocol, Alert Protocol, and Record Protocol. Network Layer Security Change Cipher Spec Protocol

Created by encrypting a message digest with the sender’s private key . Anyone can verify the signature using the sender's public key . This provides Non-Repudiation —the sender cannot deny sending the message, as only they possess the private key. 5. Network Security Protocols and Implementation cryptography and network security atul kahate ppt