Per key, per application (default): When you approve an SSH key request, you authorize a specific application (including all of it's subprocesses) to use a specific SSH key. With all options, your authorization grants access to an SSH key within that agent session, or until the application or terminal session quits. You can also choose what usage you're approving for each key, which determines when the SSH agent will ask you to approve requests. This could be until 1Password locks or quits, or until a set amount of time has passed. You'll always be asked to authorize the use of each private key, but you can adjust options like how long an SSH agent session lasts (how long the agent remembers your key approval). The authorization model for the 1Password SSH agent allows for some flexibility, so you can set it up to best suit your needs at any given time. You'll then need to sign in using the credentials for your provider account to authorize the request. If the SSH key you're approving belongs to an account that uses 1Password Unlock with SSO, you may be redirected to the sign-in page for your identity provider. You'll also have the option to deny any request. The authorization method will vary depending on your device, operating system version, 1Password settings, and other factors, so the prompt will indicate how you can authorize the request. When the SSH agent requires your approval to use one of your keys, 1Password will show you an authorization prompt that lets you approve the request using options like Touch ID, Windows Hello, your 1Password account password, and more. The SSH agent doesn't keep your private keys in memory when 1Password is locked, only your authorization, so the app needs to be unlocked for the agent to access your private keys. If you've already authorized the client to use your key for a set amount of time (for example, four hours) instead of when 1Password locks, your approval will still be in the agent's memory and you'll only be prompted to unlock 1Password. When 1Password is locked, the SSH agent continues to run in the background and will prompt you if an SSH client tries to use one of your keys. For example, if you authorize a git pull command from the terminal for one of your SSH keys, 1Password won't prompt you to approve your following git push because the session is already approved. After you approve the request, a session is established between the key and the process the SSH command was run from (a process can be a terminal window or tab, an IDE, or a GUI application, like a Git or SFTP client).Īny subsequent SSH commands run in that process can use your key without further approval until 1Password locks or quits, or for the amount of time set in the options you've configured. The authorization prompt indicates which process is requesting permission to use which SSH key. When an SSH client or terminal session on your system makes a request through the SSH agent to use one of your keys, 1Password will ask if you want to approve the request. The authorization model for the 1Password SSH agent is built on the idea that you should be able to control which processes are allowed to use which private keys. Authorization model About the authorization model When you turn on the SSH agent from the 1Password preferences or settings, every eligible key saved in 1Password becomes available to use for SSH, but your private keys will never be used without your consent. Because of this, there's no concept of adding or removing keys like with the OpenSSH agent. The 1Password SSH agent uses a different approach and asks for your consent before an SSH client or terminal session can use your key. It's then up to you to remove those keys when they're not needed anymore. After you've added your SSH keys, any process can use any key that the OpenSSH agent is managing. The standard OpenSSH agent ( ssh-agent) that comes preinstalled on most operating systems requires you to add keys to the agent ( ssh-add) every time it launches. About 1Password SSH Agent security Differences with the OpenSSH agent
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