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For example, if you set Bob, Sue, and Ann’s keys to ‘Marginal’ and they all trust the imported key, it should be set to marginal. Marginal: “m” Setting a key to marginal trust will modify a key to show as valid, This indicates that the imported key has been trusted by at least three other people in your web of trust.This is used if a signature or key is found to be fraudulent or not valid. This setting varies in the sense that the level of trust has actually been modified by you to ‘None, or if the key owner has been identified as improperly signing other keys. None: “q” This usually indicates that the trust level is still 'Unknown', or not enough info is available to make a decision.This usually indicates that the Trust process has failed possibly due to an expired key. All of the keys on your public keyring that are not verified have this initial level of trust. No info is known about the key owner other than what is in the key itself. Unknown/ No Ownertrust assigned: “-” This is the default state of all imported keys.Please note that the shown key validity is not necessarily correct (by looking at passports, checking fingerprints from different sources, etc.) Please decide how far you trust this user to correctly verify other users' keys Adele (The friendly OpenPGP email robot) (test1) Pub 2048R/BFEE478F created: expires: never usage: SCE Gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
HOW DOES GPG MAIL WORK SOFTWARE
Gpg (GnuPG) 2.0.22 Copyright (C) 2013 Free Software Foundation, Inc.
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Gpg: imported: 1 (RSA: # gpg -edit-key adele Gpg: key BFEE478F: public key "Adele (The friendly OpenPGP email robot) (test1) " imported Gpg: requesting key BFEE478F from hkp server Keys 1-4 of 4 for Enter number(s), N)ext, or Q)uit > 1 (4)Ědele (Der freundliche E-Mail-Roboter) Īdele (The friendly OpenPGP email robot) GnuPG needs to construct a user ID to identify your key.Ĭhange (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? # gpg -keyserver hkp://:80 -search searching for from hkp server Īdele (The friendly OpenPGP email robot) (test1) Ģ048 bit RSA key ED161999, created:, expires: (expired)Ģ048 bit RSA key 4D486CC8, created:, expires: (expired) Please specify how long the key should be valid. There is NO WARRANTY, to the extent permitted by law. This is free software: you are free to change and redistribute it. Some distributions package it separately.Gpg (GnuPG) 2.2.12 Copyright (C) 2018 Free Software Foundation, Inc. Send the kill command to kill the agent process (or send it a signal). You can send the agent commands with the gpg-connect-agent shell command. GPG will automatically start the agent, and GPG 2.1 will additionally find a running agent without needing an environment variable, so you don't need to start it this way unless you use an older version of GPG or you use the agent to store other types of keys such as SSH. If you want to keep an agent process as part of your session, you can replace the invocation of your session manager by gpg-agent my-session-manager some distributions set this up automatically. You can start the agent simply by running gpg-agent. GPG 2.x always starts an agent process if one isn't running. GPG 2.1 always places the agent socket in ~/.gnupg. This variable contains the location of the socket to communicate with the agent as well as the process ID of the agent. GPG 1.x or 2.0.x knows that the agent is running because the GPG_AGENT_INFO variable is set. (This is a reason not to use gpg-agent for SSH keys.) SSH has had agent forwarding for a very long time. Gpg-agent can't do this yet, it is a planned feature. GPG itself can't do that because the process terminates once it's done its job.Īnother thing that a key agent can do is allow GPG running on a remote machine to obtain keys in the local agent (which may load them from a local file and prompt for your passphrase). The agent keeps the key in memory from one time to the next. The main point of using a key agent is so that you don't have to type your passphrase every single time you use your key. In addition to GPG keys, Gpg-agent can similarly store SSH keys and provide them to SSH processes, like the ssh-agent program that comes with SSH. Once the agent has obtained the decrypted key, it passes it to the gpg process. If it doesn't, it attempts to load the encrypted key from your keyring, and prompts you for the key's passphrase. If the agent process has the key, it provides it to gpg. When a GPG process needs the key, it contacts the running gpg-agent program through a socket and requests the key. Gpg-agent is a program that runs in the background (a daemon) and stores GPG secret keys in memory.