GnuPG

GnuPG (GNU Privacy Guard) is a free and open-source implementation of the OpenPGP standard for encrypting and signing data. It provides cryptographic privacy and authentication for communications, such as emails and files, using public-key cryptography. It is widely used for secure communication, software verification, and data protection.

Also known as: PGP, GPG, Gnu Privacy Guard, OpenPGP, Pretty Good Privacy

Why learn GnuPG?

Developers should learn GnuPG when they need to ensure data confidentiality, integrity, and authenticity in applications, such as securing email communications, signing software releases, or encrypting sensitive files. It is essential for roles involving security, DevOps, or open-source projects where verifying code signatures or protecting sensitive information is critical.

Learning Resources

• docs: GnuPG Official Documentation
• tutorial: GPG Tutorial by DigitalOcean
• docs: OpenPGP Standard (RFC 4880)
• tutorial: GPG Cheat Sheet
• video: Introduction to GPG on YouTube