#Removing gpg mail how to#

This guide shows how to create your own keypair, distribute the public key to a receiver, and encrypt and decrypt a message on Ubuntu 16.04 and 18.04. This means anyone can send you a secure message if they have a copy of your public key. The recipient can then use their private key to decrypt the message. This asymmetric cryptographic system is ideal for secure communication, because all it requires is that the sender of the message have a copy of the receiverвЂ™s public key before encrypting and sending the message. The public key can be shared with anyone, while the private key should be protected and secret to maintain the integrity of the system. Public-key cryptography uses a key-pair system where any single user has a private and public key pair. Public key cryptography is likely already familiar to you since it is the recommended way to authenticate when GPG uses a combination of symmetric-key cryptography and public-key cryptography. This piece of free software is notably used by journalists around the world to ensure that their sensitive email communication is kept secure and private.

OpenPGP protocol, which defines and standardizes all the necessary components involved in sending encrypted messagesвЂ“signatures, private keys, and public key certificates. GNU Privacy Guard (GnuPG), also known as GPG, is a tool for secure communication that was created by Werner Koch as