OpenSSL Cheat Sheet v1.1

I have released a new OpenSSL Cheat Sheet version. The version 1.1.

You can download the PDF here:

or access the online version, here:

Release notes for version 1.1:

  • Inclusion of openssl command for generating random bytes specifying bytes of length for random data, in “Basics” section.
  • Added the command for displaying digital certificates information in Abstract Sintax Notation One, in “Digital Certificates” section.
  • Inclusion of command for generating a hash with its output in bytes, instead of hex encoding. This command is under “working with hashes” section.

OpenSSL Cheat Sheet v1.0.5

Today I released the 1.0.5 version of the OpenSSL Cheat Sheet.

Change Control:

  • New additions:
    • Added the Java keytool command to generate Java Key Store files in PERSONAL SECURITY ENVIRONMENTS section.
    • Added two commands to generate CSR files using Elliptic Curve keys instead of RSA keys in DIGITAL CERTIFICATES section.
    • Added the command to generate a CSR file using an existing private key file. Useful when you need to renew your certificate but preserve the private key. DIGITAL CERTIFICATES section.
  • Corrections:
    • A few typo corrections in DIGITAL SIGNATURES.

You can download the PDF version here or access the online version.