security

Gpg

→ Expired key

It is good practice to make key expire. In order to renew an expired key:

gpg --edit-key <the key ID>
# then choose tu subkey
key 1 # for the second subkey
expire
2y # for 2years
save

→ Export a private key

gpg --output /tmp/thekey.secret-key --armor --export-secret-key <the key id>

→ Import a private key

gpg --import thekey.secret-key