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

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Created January 11, 2023 10:10
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[Backup and Restore GPG and SSH keys] #git #gpg #ssh
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Backup-and-Restore-GPG-and-SSH-keys.md

Backup

  1. 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
  2. It will show something similar to this. 
    sec   4096R/3AA5C34371567BD2 2016-03-10 [expires: 2017-03-10]
  3. Characters after the slash are the ID of the private key. Export the private key. 
    gpg --export-secret-keys $ID > my-private-key.asc
  4. Copy my-private-key.asc to a USB drive.

Restore

  1. Copy both id_rsa and id_rsa.pub to ~/.ssh/
  2. 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
  3. Start the ssh-agent. 
    exec ssh-agent bash
  4. Add your SSH private key to the ssh-agent. 
    ssh-add ~/.ssh/id_rsa
  5. Import your GPG key 
    gpg --import my-private-key.asc
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