OpenSSL cheatsheet

OpenSSL crypto toolkit cheatsheet

OpenSSL is the single biggest tool used by cyber security guys and other Linux users for

• certificate housekeeping,
• simple encrpytion,
• private or public key generation,
• file encryption,
• format conversion

This cheatsheet examines how you can leverage the tool for these purposes.

This is the TOC.

• Working with RSA and ECDSA keys
• Certificate operations
• Digests and Base64
• s_client operations
• Speed tests
• Certificate conversions
• Symmetric encryption
• OCSP

Hopefully this book shall serve as a helpful guide through your crypto journey.