plam4u/Backup-and-Restore-GPG-and-SSH-keys.md

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Created May 5, 2024 19:41

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[Backup and Restore GPG and SSH keys] #git #gpg #ssh

Raw

Backup-and-Restore-GPG-and-SSH-keys.md

Backup

Copy both id_rsa and id_rsa.pub from ~/.ssh/ to a USB drive. Identify the private key by executing the following command.
```
gpg --list-secret-keys --keyid-format LONG
```

It will show something similar to this.

sec   4096R/3AA5C34371567BD2 2016-03-10 [expires: 2017-03-10]

Characters after the slash are the ID of the private key. Export the private key.
```
gpg --export-secret-keys $ID > my-private-key.asc
```
Copy my-private-key.asc to a USB drive.

Restore

Copy both id_rsa and id_rsa.pub to ~/.ssh/

Change file permissions and ownership of both files.

chown user:user ~/.ssh/id_rsa*
chmod 600 ~/.ssh/id_rsa
chmod 644 ~/.ssh/id_rsa.pub

Start the ssh-agent.
```
exec ssh-agent bash
```
Add your SSH private key to the ssh-agent.
```
ssh-add ~/.ssh/id_rsa
```
Import your GPG key
```
gpg --import my-private-key.asc
```

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