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Brandon Rozek

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PhD Student @ RPI studying Automated Reasoning in AI and Linux Enthusiast.

GPG Agent as SSH Agent

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GPG Agent has the ability to act as a SSH Agent. This allows the use of Authentication keys on Smartcards to be used with SSH as well.

First we need to enable SSH support in GPG Agent,

echo "enable-ssh-support" >> ~/.gnupg/gpg-agent.conf

Then we need to specify an environmental variable for the SSH Daemon to use GPG Agent

echo "export SSH_AUTH_SOCK=$(gpgconf --list-dirs agent-ssh-socket)" >> ~/.bashrc

If you want it to be active immediately, then source the bashrc,

source ~/.bashrc

If you have a smartcard plugged in, then you should be able to see it via the GPG agent

ssh-add -l
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