Loading...OpenSSL is an open-source software library and a powerful command-line tool for cryptography, encryption, and secure connections.
Despite some imperfections, OpenSSL remains a very popular tool for developers and administrators. OpenSSL users commonly use it for key generation and SSL certificate format conversion.
In this OpenSSL cheat sheet, we’ll take a look at the most common OpenSSL commands that are used worldwide.
OpenSSL Commands for Code Signing Request (CSR), Private Key, Self-signed Certificate Generation.
Generating a CSR and private key (generated without a passphrase)
Generating a CSR for an existing Private Key
Generating a CSR based on an existing certificate
Removing a password from a Private key
To generate a self-signed certificate
OpenSSL Commands to Display Iinformation About an Existing CSR, Private Key, or Certificate.
To check a CSR
To check a private key
To check a certificate
OpenSSL Commands for Certificate File Format Conversion
DER to PEM
PEM file to DER
PEM to PKCS#12 (.pfx .p12)
PKCS#12 file (.pfx .p12) to PEM
You can find multiple online tools that can be used for the same encryption purposes, but OpenSSL remains the industry standard tool, ensuring the possibility for anyone getting access to privacy and secure communication.
