This lecture is dedicated to the study of secure data access and transmission systems including the fundamentals of cryptography, the development of secure communications through tunneling protocols such as IPSEC and the study of PKI infrastructure.

Lecture Slides

Cryptography principles

• 01_Introduction

• 02_Symetric_Encryption

• 03_Message_Integrity

• 04_Asymetric_Encryption

• 05_GNUPG

Public Key Infrastructure

• 06_PKI_Signature

• 07_PKI_Introduction

Secure communications

• 08_Introduction_CISCO_IOS

• 09_Introduction_Router_Switch_Connectivity

• 10_SSH

• 11_IP_SECURITY, PCAP

• 12_IKEv2, PCAP

• 13_FIREWALL

• 14_SSL/TLS

Laboratory Materials

Cryptography principles

• Laboratory_01: Python Encryption AES, Source files of Lab1

• Laboratory_02: DES encryption using OpenSSL

• Laboratory_03: AES Encryption using OpenSSL

• Laboratory_04: Basic Network Communication and Hashing in Python, Source files of Lab4

• Laboratory_05: Hashcat

• Laboratory_06: OpenSSL for AES, RSA and ECC

• Laboratory_07: Signing docker images

• Laboratory_08: Implementation of Diffie-Hellman Algorithm

• Laboratory_09: GPG Encryption: A Comprehensive Guide to Securing Data Transfers

• Laboratory_10: Commit Signing in Git

• Laboratory_11: Test of crypto

Public Key Infrastructure

• Laboratory_12: Self-Signed Certificates and MiTM Detection

• Laboratory_13: SSL/TLS Security Assessment using sslscan

• Laboratory_14: CA based on openssl

• Laboratory_15: Mounting a Certificate Authority and perform a secure automated certificate management

• Laboratory_16: Test of PKI

Secure communications

• Laboratory_17: CISCO IOS Introduction, Source

• Laboratory_18: Configuración inicialdel Switch, Source

• Laboratory_19: Configure Network Devices with SSH

• Laboratory_20: SSH Tunneling - Four Tunneling Cases with Python HTTP Server

• Laboratory_21: Configure and Verify a Site-to-Site IPsec VPN

• Laboratory_22: Configuring site-to-site IPSEC VPN on ASA using IKEv2

• Laboratory_23: Test of Secure communications

Additional Resources

• Lecture Planning

• Book: Sistemas Seguros de Acceso y Transmisión de Datos

• VMWare Player installer

• Ubuntu Jammy ISO

• CriptoRES

• Download Cisco Packet Tracer 8.2.2