Network & Security

01 - Introductory lecture - Download

• All slide sets from the book "Criptography and Network Security" download

• 02 - Symmetric Cryptography, Cipher modes, Random numbers - Download 

• 03 - Diffie-Helmann-like key exchange, Public key encryption, Cryptographic hashes - Download 

• 04 - Key Distribution and PKI - Download 

  • TLS - Download

  • TLS and smtp (Sections 1 to 6 are a good introduction to TLS in general) 

  • Ten risks of PKI - Download

• Security of Layer 2 Links - Download 

• A survey of common MITM attacks

• WLAN technologies and security

• Anatomy of common MITM Layer 2 attacks - Download

• Principles and goals of a VPN - Download 

• VPN with SSH Tunneling

• Linux VPN technical analysis - Download 

• How to setup a PPTP/GRE server on Linux

• How to setup a L2TP/IPSec server on Linux

  • IpSec - Download 

  • IPSec HOWTO 

• Common VPN Security Flaws - Download 

• Firewall Traversal - Download 

• The TOR network - Download 

• SSL+TLS infrastructure

• How to configure an Apache server with a SSL certificate (coming soon)

• Password workflow, AAA, Identity management - Download 

• GNS3 slides - Download 

  • GNS3 Laboratory configuration guide - Download 

• Symmetric Cryptography slides 

  • Cryptocat - text solution 

  • Decryptcat - text solution 

  • Steghide - text solution 

• Asymmetric Cryptography and Certificate Generation slides - Download 

  • How to store and load a SSL/TLS Pre-Master Secret key - Download

  • Self signed certificate generation - Download 

  • Letsencrypt certificate generation - Download 

  • Configure Nginx on Linux - Download 

  • TLS client/server socket - Download 

• Layer 2 attacks slides - Download 

  • Mac Flooding - Download 

  • ARP Spoofing - Download

• Other MITM Attacks - Download 

  • IP Spoofing attack with scapy - GitHub

  • ARP Poisoning with Ettercap - GitHub

  • DNS Spoofing with Ettercap - GitHub 

• Wifi cracking - Download

  • WEP cracking - GitHub | Slides

  • WPA2 cracking - GitHub 

• Phishing and VPN - Download 

  • Phishing Attack - GitHub

  • VPN Configuration - GitHub 

• SSLSTRIP and Password Cracking - Download 

  • SSLSTRIP and HSTSHIJACK - GitHub

  • Linux Shadow Password Cracking- GitHub

  • Windows SAM Hash Cracking - Github