Chris Schammert (csmertx)

💻 GnuPG

Create New Key

gpg –-gen-key

Encrypt File

gpg -e -r $USER /dir/examplefile

Decrypt File

gpg -d -o /dir/examplefile /dir/examplefile.(gz.)gpg
shred /dir/examplefile
rm /dir/examplefile

Encrypt/Decrypt Folder(s)

First convert the folder(s) to file
tar czf /dir/examplefolder.gz /dir/examplefolder
Then follow steps to encrypt/decrypt files

One or more PGP Signatures could not be verified!

gpg --recv-key [key]
Key is usually printed with error message

Export Local key

gpg --list-keys # Target == examplekey
gpg --output mygpgkey_pub.gpg --armor --export examplekey
gpg --output mygpgkey_sec.gpg --armor --export-secret-key examplekey

Import Local key

gpg --import ~/mygpgkey_pub.gpg
gpg --allow-secret-key-import --import ~/mygpgkey_sec.gpg
gpg --list-keys # to verify
rm mygpgkey\_{pup,sec}.gpg

Export/Import All Secret keys

gpg --export-secret-keys > unique_name.asc
gpg --import unique_name.asc

Renew Expiration Date

gpg --list-keys
gpg --edit-key [expiredkey]
- gpg> expire 1yr
  1yr # or whatever is required. This is for key 0
Select subkeys too: key 1 # etc.

Resources

Created: 01/07/2023 • Edited: 02/09/2025 • Author: Chris Schammert (csmertx) • History 🕵️