Learn OpenSSL with a real world cheatsheet

Learn real world commands from the OpenSSL Cheat Sheet to troubleshoot Open SSL

Learn real world commands from the OpenSSL Cheat Sheet to troubleshoot Open SSL

Overview

How to use OpenSSL tools, How to generate Public and Private Keys, How to add & remove Encryption to RSA Keys, How to generate Certificates and CSRs, Understand and convert between different File Formats (PEM, DER, PFX)

If you install, configure, or troubleshoot SSL & TLS, then this course is for you

Basic understanding of SSL, Access to the Internet and a Linux Terminal

OpenSSL is the universal tool for inspecting, diagnosing, and troubleshooting SSL & TLS.

OpenSSL is composed of many different utilities, each of which is responsible for a specific aspect of the SSL and TLS ecosystem.

Topics include:

  • Module 1 - Generating Public and Private Keys

    • Generating and inspecting RSA Keys

    • Generating and inspecting DSA Keys

    • Generating and inspecting Elliptic Curve Keys

  • Adding & Removing Encryption to RSA Keys

    • Adding and removing encryption to RSA Keys

    • OpenSSL Key Utility

    • Matching Private Keys to Certificates and CSRs

  • Module 3 - Generating Certificates and CSRs

    • Creating a CSR and Certificate using an existing Private Key

    • Creating a CSR and Certificate using a new Private Key

  • Module 4 - Inspecting Certificates and CSRs

    • Extracting specific information from Certificates and CSRs

  • Module 5 - File Formats and Conversions (PEM, DER, PFX)

    • Check if file is PEM, DER, or PFX

    • Converting files between PEM and DER formats

    • Converting files between PEM and PFX formats

In this course, you will receiving training on how to use the following OpenSSL Utilities:

  • openssl rsa

  • openssl genrsa

  • openssl dsa

  • openssl gendsa

  • openssl dsaparam

  • openssl ec

  • openssl ecparam

  • openssl pkey

  • openssl genpkey

  • openssl x509

  • openssl req

  • openssl pkcs12

Each module contains demo files you can use to practice the commands along with each lesson.

The lessons in the course follow a section from the Cheat Sheet (available to download as part of the course).

After completing the course and downloading the OpenSSL Cheat Sheet,
you will be equipped to inspect and troubleshoot any SSL / TLS scenarios you find yourself in.


Experts with David Bombal

David Bombal, together with some of the best minds in the industry is offering courses on a wide range of topics including networking, programming and software development. Our team has decades of experience teaching students from all over the world. 

Together we can do more!

David Bombal (CCIE #11023 Emeritus) passed his Cisco Certified Internetwork Expert Routing and Switching exam in January 2003 and is one of a small percentage of Cisco Engineers that pass their CCIE labs on their first attempt.

David qualified as a Cisco Certified Systems Instructor (CCSI #22787) many years ago! He has been training Cisco courses for over 15 years and has delivered instructor led courses in various countries around the world covering a wide range of Cisco topics from CCNA to CCIE.

He has also personally developed Cisco engineer utilities such as the VPN Config Generator, software, training materials, EBooks, videos and other products which are used throughout the world.

David has designed, implemented and managed networks ranging from single sites to those that span 50 countries.



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