Security

How to Use GPG: A Practical Guide to Key Management, Encryption, and Signing

GPG (GNU Privacy Guard) is an implementation of PGP and is widely used in the field of cryptography. Its fundamental principle is asymmetric cryptography, also known as public-key cryptography. This article will not delve deeply into its underlying principles but will instead introduce its basic usage. The scenarios described below are those I might encounter in my daily work. Creating a Key Pair Since GPG is based on asymmetric cryptography technology, the first step in using it is to generate a key pair: a public key and a private key: